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1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"2 "https://www.w3.org/TR/html4/strict.dtd">3<html>4<head>5 <META http-equiv="Content-Type" content="text/html; charset=utf-8">6 <title>Clang - C Defect Report Status</title>7 <link type="text/css" rel="stylesheet" href="menu.css">8 <link type="text/css" rel="stylesheet" href="content.css">9 <style type="text/css">10 .none { background-color: #FFCCCC }11 .partial { background-color: #FFE0B0 }12 .unreleased { background-color: #FFFF99 }13 .full { background-color: #CCFF99 }14 .na { background-color: #DDDDDD }15 .unknown { background-color: #EBCAFE }16 .open * { color: #AAAAAA }17 //.open { filter: opacity(0.2) }18 tr:target { background-color: #FFFFBB }19 th { background-color: #FFDDAA }20 </style>21</head>22<body>23 24<!--#include virtual="menu.html.incl"-->25 26<div id="content">27 28<!--*************************************************************************-->29<h1>C Defect Report Support in Clang</h1>30<!--*************************************************************************-->31 32<h2 id="cdr">C defect report implementation status</h2>33 34<p>This page tracks which C defect reports are implemented within Clang.</p>35 36<p>The implementation status for defect reports against the C Standard are37currently under investigation. Any defect report whose status in Clang is38currently unknown will be marked in <span class="unknown">purple</span>.</p>39 40<p>The <a href="https://github.com/llvm/llvm-project/issues/">LLVM bug tracker</a> uses41the "c", "c99", "c11", "c17", and "c23" labels to track known bugs with Clang's language42conformance.</p>43 44<table width="689" border="1" cellspacing="0">45 <tr>46 <th>Number</th>47 <th>Status</th>48 <th>Issue title</th>49 <th>Available in Clang?</th>50 </tr>51 <tr id="1">52 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_001.html">1</a></td>53 <td>C89</td>54 <td>Do functions return values by copying?</td>55 <td class="full" align="center">Yes</td>56 </tr>57 <tr id="2">58 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_002.html">2</a></td>59 <td>NAD</td>60 <td>Subclause 6.8.3.2: Semantics of #</td>61 <td class="unknown" align="center">Unknown</td>62 </tr>63 <tr id="3">64 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_003.html">3</a></td>65 <td>NAD</td>66 <td>Subclause 6.1.8: Preprocessing numbers</td>67 <td class="unknown" align="center">Unknown</td>68 </tr>69 <tr id="4">70 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_004.html">4</a></td>71 <td>NAD</td>72 <td>Are multiple definitions of unused identifiers with external linkage permitted?</td>73 <td class="full" align="center">Yes</td>74 </tr>75 <tr id="5">76 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_005.html">5</a></td>77 <td>NAD</td>78 <td>May a conforming implementation define and recognize a pragma which would change the semantics of the language?</td>79 <td class="full" align="center">Yes</td>80 </tr>81 <tr id="6">82 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_006.html">6</a></td>83 <td>C89</td>84 <td>It is unclear how the strtoul function behaves when presented with a subject sequence that begins with a minus sign</td>85 <td class="na" align="center">N/A</td>86 </tr>87 <tr id="7">88 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_007.html">7</a></td>89 <td>NAD</td>90 <td>Are declarations of the form struct-or-union identifier ; permitted after the identifier tag has already been declared?</td>91 <td class="full" align="center">Yes</td>92 </tr>93 <tr id="8">94 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_008.html">8</a></td>95 <td>NAD</td>96 <td>Can a conforming C compiler to perform dead-store elimination?</td>97 <td class="full" align="center">Yes</td>98 </tr>99 <tr id="9">100 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_009.html">9</a></td>101 <td>C89</td>102 <td>Use of typedef names in parameter declarations</td>103 <td class="none" align="center">No</td>104 </tr>105 <tr id="10">106 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_010.html">10</a></td>107 <td>NAD</td>108 <td>Is a typedef to an incomplete type legal?</td>109 <td class="full" align="center">Yes</td>110 </tr>111 <tr id="11">112 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_011.html">11</a></td>113 <td>C89</td>114 <td>Merging of declarations for linked identifier</td>115 <td class="full" align="center">Yes</td>116 </tr>117 <tr id="12">118 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_012.html">12</a></td>119 <td>NAD</td>120 <td>Is it valid to take the address of a dereferenced void pointer?</td>121 <td class="full" align="center">Yes</td>122 </tr>123 <tr id="13">124 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_013.html">13</a></td>125 <td>C89</td>126 <td>Compatible and composite function types</td>127 <td class="full" align="center">Yes</td>128 </tr>129 <tr id="14">130 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_014.html">14</a></td>131 <td>C89</td>132 <td>Issues with setjmp and fscanf descriptions</td>133 <td class="na" align="center">N/A</td>134 </tr>135 <tr id="15">136 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_015.html">15</a></td>137 <td>NAD</td>138 <td>What is the promoted type of a plain int bit-field?</td>139 <td class="full" align="center">Yes</td>140 </tr>141 <tr id="16">142 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_016.html">16</a></td>143 <td>C89</td>144 <td>What does static storage duration do when zero for the type is not all zero bits?</td>145 <td class="unknown" align="center">Unknown</td>146 </tr>147 <tr id="17">148 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_017.html">17</a></td>149 <td>C89</td>150 <td>39 unrelated questions about C89</td>151 <td class="unknown" align="center">Unknown</td>152 </tr>153 <tr id="18">154 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_018.html">18</a></td>155 <td>NAD</td>156 <td>How does fscanf behave in the presence of multibyte characters?</td>157 <td class="na" align="center">N/A</td>158 </tr>159 <tr id="19">160 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_019.html">19</a></td>161 <td>NAD</td>162 <td>Definition of the term "printing character" and isgraph()</td>163 <td class="na" align="center">N/A</td>164 </tr>165 <tr id="20">166 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_020.html">20</a></td>167 <td>NAD</td>168 <td>Is a compiler which allows the Relaxed Ref/Def linkage model to be considered a conforming compiler?</td>169 <td class="full" align="center">Yes</td>170 </tr>171 <tr id="21">172 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_021.html">21</a></td>173 <td>C89</td>174 <td>What is the result of: printf("%#.4o", 345);?</td>175 <td class="na" align="center">N/A</td>176 </tr>177 <tr id="22">178 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_022.html">22</a></td>179 <td>C89</td>180 <td>What is the result of: strtod("100ergs", &ptr);?</td>181 <td class="na" align="center">N/A</td>182 </tr>183 <tr id="23">184 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_023.html">23</a></td>185 <td>NAD</td>186 <td>what is the result of strtod("0.0e99999", &ptr);?</td>187 <td class="na" align="center">N/A</td>188 </tr>189 <tr id="24">190 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_024.html">24</a></td>191 <td>NAD</td>192 <td>In subclause 7.10.1.4 The strtod function: What does '"C" locale' mean?</td>193 <td class="na" align="center">N/A</td>194 </tr>195 <tr id="25">196 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_025.html">25</a></td>197 <td>NAD</td>198 <td>What is meant by 'representable floating-point value?'</td>199 <td class="full" align="center">Yes</td>200 </tr>201 <tr id="26">202 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_026.html">26</a></td>203 <td>NAD</td>204 <td>Can a strictly conforming program contain a string literal with '$' or '@'?</td>205 <td class="full" align="center">Yes</td>206 </tr>207 <tr id="27">208 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_027.html">27</a></td>209 <td>C89</td>210 <td>Can there be characters in the character set that are not in the required source character set?</td>211 <td class="full" align="center">Yes</td>212 </tr>213 <tr id="28">214 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_028.html">28</a></td>215 <td>NAD</td>216 <td>Do object access rules apply to dynamically allocated objects?</td>217 <td class="unknown" align="center">Unknown</td>218 </tr>219 <tr id="29">220 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_029.html">29</a></td>221 <td>NAD</td>222 <td>Do two types have to have the same tag to be compatible?</td>223 <td class="none" align="center">No</td>224 </tr>225 <tr id="30">226 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_030.html">30</a></td>227 <td>NAD</td>228 <td>Can 'sin(DBL_MAX)' result in 'errno' being set to 'EDOM'?</td>229 <td class="na" align="center">N/A</td>230 </tr>231 <tr id="31">232 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_031.html">31</a></td>233 <td>NAD</td>234 <td>Can constant expressions overflow?</td>235 <td class="full" align="center">Yes</td>236 </tr>237 <tr id="32">238 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_032.html">32</a></td>239 <td>NAD</td>240 <td>Must implementations diagnose extensions to the constant evaluation rules?</td>241 <td class="none" align="center">No</td>242 </tr>243 <tr id="33">244 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_033.html">33</a></td>245 <td>NAD</td>246 <td>Conformance questions around 'shall' violations outside of constraints sections</td>247 <td class="full" align="center">Yes</td>248 </tr>249 <tr id="34">250 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_034.html">34</a></td>251 <td>C89</td>252 <td>External declarations in different scopes</td>253 <td class="full" align="center">Yes</td>254 </tr>255 <tr id="35">256 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_035.html">35</a></td>257 <td>NAD</td>258 <td>Questions about definition of functions without a prototype</td>259 <td class="partial" align="center">260 <details><summary>Partial</summary>261 Tags declared directly within an identifier list are incorrectly scoped262 to the prototype rather than to the function body.263 </details>264 </td>265 </tr>266 <tr id="36">267 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_036.html">36</a></td>268 <td>NAD</td>269 <td>May floating-point constants be represented with more precision than implied by its type?</td>270 <td class="full" align="center">Yes</td>271 </tr>272 <tr id="37">273 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_037.html">37</a></td>274 <td>NAD</td>275 <td>Questions about multibyte characters and Unicode</td>276 <td class="full" align="center">Yes</td>277 </tr>278 <tr id="38">279 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_038.html">38</a></td>280 <td>NAD</td>281 <td>Questions about argument substitution during macro expansion</td>282 <td class="full" align="center">Yes</td>283 </tr>284 <tr id="39">285 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_039.html">39</a></td>286 <td>NAD</td>287 <td>Questions about the "C" locale</td>288 <td class="full" align="center">Yes</td>289 </tr>290 <tr id="40">291 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_040.html">40</a></td>292 <td>NAD</td>293 <td>9 unrelated questions about C89</td>294 <td class="partial" align="center">295 <details><summary>Partial</summary>296 Question 6 has full support, the rest of the questions are currently unknown.297 </details>298 </td>299 </tr>300 <tr id="41">301 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_041.html">41</a></td>302 <td>NAD</td>303 <td>Do characters defined in 5.2.1 impact 7.3.1?</td>304 <td class="na" align="center">N/A</td>305 </tr>306 <tr id="42">307 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_042.html">42</a></td>308 <td>NAD</td>309 <td>On the behavior of library functions and overlapping objects</td>310 <td class="na" align="center">N/A</td>311 </tr>312 <tr id="43">313 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_043.html">43</a></td>314 <td>C89</td>315 <td>On the definition of the NULL macro</td>316 <td class="full" align="center">Yes</td>317 </tr>318 <tr id="44">319 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_044.html">44</a></td>320 <td>NAD</td>321 <td>On the result of the offsetof macro</td>322 <td class="full" align="center">Yes</td>323 </tr>324 <tr id="45">325 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_045.html">45</a></td>326 <td>NAD</td>327 <td>Is the behavior of freopen defined when the file is invalid?</td>328 <td class="na" align="center">N/A</td>329 </tr>330 <tr id="46">331 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_046.html">46</a></td>332 <td>NAD</td>333 <td>Use of typedef names in parameter declarations</td>334 <td class="full" align="center">Yes</td>335 </tr>336 <tr id="47">337 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_047.html">47</a></td>338 <td>NAD</td>339 <td>Questions about declaration conformance</td>340 <td class="full" align="center">Yes</td>341 </tr>342 <tr id="48">343 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_048.html">48</a></td>344 <td>NAD</td>345 <td>Clarifications on the abort() function</td>346 <td class="na" align="center">N/A</td>347 </tr>348 <tr id="49">349 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_049.html">49</a></td>350 <td>C89</td>351 <td>Can strxfrm() output more characters than were input?</td>352 <td class="na" align="center">N/A</td>353 </tr>354 <tr id="50">355 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_050.html">50</a></td>356 <td>NAD</td>357 <td>Do wide string literals implicitly include <stddef.h>?</td>358 <td class="full" align="center">Yes</td>359 </tr>360 <tr id="51">361 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_051.html">51</a></td>362 <td>NAD</td>363 <td>Question on pointer arithmetic</td>364 <td class="full" align="center">Yes</td>365 </tr>366 <tr id="52">367 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_052.html">52</a></td>368 <td>C89</td>369 <td>Editorial corrections</td>370 <td class="full" align="center">Yes</td>371 </tr>372 <tr id="53">373 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_053.html">53</a></td>374 <td>C89</td>375 <td>Accessing a pointer to a function with a prototype through a pointer to pointer to function without a prototype</td>376 <td class="full" align="center">Yes</td>377 </tr>378 <tr id="54">379 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_054.html">54</a></td>380 <td>C89</td>381 <td>Can the string handling functions have a length of 0?</td>382 <td class="na" align="center">N/A</td>383 </tr>384 <tr id="55">385 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_055.html">55</a></td>386 <td>C89</td>387 <td>Signal handler macros should have distinct values</td>388 <td class="na" align="center">N/A</td>389 </tr>390 <tr id="56">391 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_056.html">56</a></td>392 <td>NAD</td>393 <td>Floating-point representation precision requirements</td>394 <td class="full" align="center">Yes</td>395 </tr>396 <tr id="57">397 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_057.html">57</a></td>398 <td>NAD</td>399 <td>Is there an integral type for every pointer?</td>400 <td class="full" align="center">Yes</td>401 </tr>402 <tr id="58">403 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_058.html">58</a></td>404 <td>NAD</td>405 <td>Is there a limit on the number of digits processed by scanf and strtdo?</td>406 <td class="na" align="center">N/A</td>407 </tr>408 <tr id="59">409 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_059.html">59</a></td>410 <td>NAD</td>411 <td>Do types have to be completed?</td>412 <td class="full" align="center">Yes</td>413 </tr>414 <tr id="60">415 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_060.html">60</a></td>416 <td>C89</td>417 <td>Array initialization from a string literal</td>418 <td class="full" align="center">Yes</td>419 </tr>420 <tr id="61">421 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_061.html">61</a></td>422 <td>NAD</td>423 <td>Whitespace in scanf format string</td>424 <td class="na" align="center">N/A</td>425 </tr>426 <tr id="62">427 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_062.html">62</a></td>428 <td>NAD</td>429 <td>Can the rename function be defined to fail?</td>430 <td class="na" align="center">N/A</td>431 </tr>432 <tr id="63">433 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_063.html">63</a></td>434 <td>Dup</td>435 <td>Floating-point representation precision requirements</td>436 <td class="full" align="center">Duplicate of <a href="#56">56</a></td>437 </tr>438 <tr id="64">439 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_064.html">64</a></td>440 <td>NAD</td>441 <td>Null pointer constants</td>442 <td class="full" align="center">Yes</td>443 </tr>444 <tr id="65">445 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_065.html">65</a></td>446 <td>C89</td>447 <td>Questions on locales</td>448 <td class="na" align="center">N/A</td>449 </tr>450 <tr id="66">451 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_066.html">66</a></td>452 <td>NAD</td>453 <td>Another question on locales</td>454 <td class="na" align="center">N/A</td>455 </tr>456 <tr id="67">457 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_067.html">67</a></td>458 <td>NAD</td>459 <td>Integer and integral type confusion</td>460 <td class="full" align="center">Yes</td>461 </tr>462 <tr id="68">463 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_068.html">68</a></td>464 <td>NAD</td>465 <td>'char' and signed vs unsigned integer types</td>466 <td class="full" align="center">Yes</td>467 </tr>468 <tr id="69">469 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_069.html">69</a></td>470 <td>NAD</td>471 <td>Questions about the representation of integer types</td>472 <td class="full" align="center">Yes</td>473 </tr>474 <tr id="70">475 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_070.html">70</a></td>476 <td>NAD</td>477 <td>Interchangeability of function arguments</td>478 <td class="full" align="center">Yes</td>479 </tr>480 <tr id="71">481 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_071.html">71</a></td>482 <td>C89</td>483 <td>Enumerated types</td>484 <td class="full" align="center">Yes</td>485 </tr>486 <tr id="72">487 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_072.html">72</a></td>488 <td>NAD</td>489 <td>Definition of object and pointer arithmetic</td>490 <td class="unknown" align="center">Unknown</td>491 </tr>492 <tr id="73">493 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_073.html">73</a></td>494 <td>NAD</td>495 <td>Definition of object and array access</td>496 <td class="unknown" align="center">Unknown</td>497 </tr>498 <tr id="74">499 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_074.html">74</a></td>500 <td>NAD</td>501 <td>Alignment and structure padding</td>502 <td class="unknown" align="center">Unknown</td>503 </tr>504 <tr id="75">505 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_075.html">75</a></td>506 <td>NAD</td>507 <td>Alignment of allocated memory</td>508 <td class="na" align="center">N/A</td>509 </tr>510 <tr class="open" id="76">511 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_076.html">76</a></td>512 <td>Open</td>513 <td>Pointers to the end of arrays</td>514 <td align="center">Not resolved</td>515 </tr>516 <tr id="77">517 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_077.html">77</a></td>518 <td>NAD</td>519 <td>Stability of addresses</td>520 <td class="full" align="center">Yes</td>521 </tr>522 <tr id="78">523 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_078.html">78</a></td>524 <td>NAD</td>525 <td>Uniqueness of addresses</td>526 <td class="unknown" align="center">Unknown</td>527 </tr>528 <tr id="79">529 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_079.html">79</a></td>530 <td>NAD</td>531 <td>Constancy of system library function addresses</td>532 <td class="na" align="center">N/A</td>533 </tr>534 <tr id="80">535 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_080.html">80</a></td>536 <td>C89</td>537 <td>Merging of string constants</td>538 <td class="full" align="center">Yes</td>539 </tr>540 <tr id="81">541 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_081.html">81</a></td>542 <td>NAD</td>543 <td>Left shift operator</td>544 <td class="full" align="center">Yes</td>545 </tr>546 <tr id="82">547 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_082.html">82</a></td>548 <td>C89</td>549 <td>Multiple varargs</td>550 <td class="unknown" align="center">Unknown</td>551 </tr>552 <tr id="83">553 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_083.html">83</a></td>554 <td>C89</td>555 <td>Use of library functions</td>556 <td class="na" align="center">N/A</td>557 </tr>558 <tr id="84">559 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_084.html">84</a></td>560 <td>NAD</td>561 <td>Incomplete type in function declaration</td>562 <td class="full" align="center">Yes</td>563 </tr>564 <tr id="85">565 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_085.html">85</a></td>566 <td>C89</td>567 <td>Returning from main</td>568 <td class="full" align="center">Yes</td>569 </tr>570 <tr id="86">571 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_086.html">86</a></td>572 <td>NAD</td>573 <td>Object-like macros in system headers</td>574 <td class="full" align="center">Yes</td>575 </tr>576 <tr id="87">577 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_087.html">87</a></td>578 <td>NAD</td>579 <td>Order of evaluation</td>580 <td class="full" align="center">Yes</td>581 </tr>582 <tr id="88">583 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_088.html">88</a></td>584 <td>NAD</td>585 <td>Compatibility of incomplete types</td>586 <td class="full" align="center">Yes</td>587 </tr>588 <tr id="89">589 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_089.html">89</a></td>590 <td>C89</td>591 <td>Multiple definitions of macros</td>592 <td class="full" align="center">Yes</td>593 </tr>594 <tr id="90">595 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_090.html">90</a></td>596 <td>NAD</td>597 <td>Multibyte characters in formats</td>598 <td class="na" align="center">N/A</td>599 </tr>600 <tr id="91">601 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_091.html">91</a></td>602 <td>NAD</td>603 <td>Multibyte encodings</td>604 <td class="full" align="center">Yes</td>605 </tr>606 <tr id="92">607 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_092.html">92</a></td>608 <td>Dup</td>609 <td>Partial initialization of strings</td>610 <td class="full" align="center">Duplicate of <a href="#60">60</a></td>611 </tr>612 <tr id="93">613 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_093.html">93</a></td>614 <td>C89</td>615 <td>Reservation of identifiers</td>616 <td class="full" align="center">Yes</td>617 </tr>618 <tr id="94">619 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_094.html">94</a></td>620 <td>NAD</td>621 <td>Are constraints on function return the same as assignment?</td>622 <td class="full" align="center">Yes</td>623 </tr>624 <tr id="95">625 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_095.html">95</a></td>626 <td>NAD</td>627 <td>Is initialization as constrained as assignment?</td>628 <td class="full" align="center">Yes</td>629 </tr>630 <tr id="96">631 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_096.html">96</a></td>632 <td>NAD</td>633 <td>Arrays of incomplete types</td>634 <td class="full" align="center">Yes</td>635 </tr>636 <tr id="97">637 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_097.html">97</a></td>638 <td>Dup</td>639 <td>Use of offsetof with an incomplete type</td>640 <td class="full" align="center">Duplicate of <a href="#40">40</a></td>641 </tr>642 <tr id="98">643 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_098.html">98</a></td>644 <td>NAD</td>645 <td>Pre/post increment/decrement of function or incomplete types</td>646 <td class="full" align="center">Yes</td>647 </tr>648 <tr id="99">649 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_099.html">99</a></td>650 <td>NAD</td>651 <td>ANSI/ISO C Defect report #rfg6</td>652 <td class="unknown" align="center">Unknown</td>653 </tr>654 <tr id="100">655 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_100.html">100</a></td>656 <td>Dup</td>657 <td>Defect with the return statement</td>658 <td class="full" align="center">Duplicate of <a href="#1">1</a></td>659 </tr>660 <tr id="101">661 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_101.html">101</a></td>662 <td>C89</td>663 <td>Type qualifiers and "as if by assignment"</td>664 <td class="full" align="center">Yes</td>665 </tr>666 <tr id="102">667 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_102.html">102</a></td>668 <td>NAD</td>669 <td>Tag redeclaration constraints</td>670 <td class="full" align="center">Yes</td>671 </tr>672 <tr id="103">673 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_103.html">103</a></td>674 <td>NAD</td>675 <td>Formal parameters of incomplete type</td>676 <td class="full" align="center">Yes</td>677 </tr>678 <tr id="104">679 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_104.html">104</a></td>680 <td>Dup</td>681 <td>Incomplete tag types in a parameter list</td>682 <td class="full" align="center">Duplicate of <a href="#84">84</a></td>683 </tr>684 <tr id="105">685 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_105.html">105</a></td>686 <td>Dup</td>687 <td>Precedence of requirements on compatible types</td>688 <td class="full" align="center">Duplicate of <a href="#17">17</a></td>689 </tr>690 <tr id="106">691 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_106.html">106</a></td>692 <td>NAD</td>693 <td>When can you dereference a void pointer?</td>694 <td class="full" align="center">Yes</td>695 </tr>696 <tr id="107">697 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_107.html">107</a></td>698 <td>NAD</td>699 <td>Type requirements of the assert macro parameter</td>700 <td class="na" align="center">N/A</td>701 </tr>702 <tr id="108">703 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_108.html">108</a></td>704 <td>NAD</td>705 <td>Can a macro identifier hide a keyword?</td>706 <td class="full" align="center">Yes</td>707 </tr>708 <tr id="109">709 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_109.html">109</a></td>710 <td>NAD</td>711 <td>Are undefined values and undefined behavior the same?</td>712 <td class="full" align="center">Yes</td>713 </tr>714 <tr id="110">715 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_110.html">110</a></td>716 <td>Dup</td>717 <td>Formal parameters having array-of-non-object types</td>718 <td class="full" align="center">Duplicate of <a href="#47">47</a></td>719 </tr>720 <tr id="111">721 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_111.html">111</a></td>722 <td>NAD</td>723 <td>Conversion of pointer-to-qualified type values to type (void*) values</td>724 <td class="full" align="center">Yes</td>725 </tr>726 <tr id="112">727 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_112.html">112</a></td>728 <td>NAD</td>729 <td>Null pointer constants and relational comparisons</td>730 <td class="full" align="center">Yes</td>731 </tr>732 <tr id="113">733 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_113.html">113</a></td>734 <td>NAD</td>735 <td>Return expressions in functions declared to return qualified void</td>736 <td class="full" align="center">Yes</td>737 </tr>738 <tr id="114">739 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_114.html">114</a></td>740 <td>NAD</td>741 <td>Initialization of multi-dimensional char array objects</td>742 <td class="full" align="center">Yes</td>743 </tr>744 <tr id="115">745 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_115.html">115</a></td>746 <td>NAD</td>747 <td>Member declarators as declarators</td>748 <td class="full" align="center">Yes</td>749 </tr>750 <tr id="116">751 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_116.html">116</a></td>752 <td>NAD</td>753 <td>Implicit unary & applied to register arrays</td>754 <td class="full" align="center">Yes</td>755 </tr>756 <tr id="117">757 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_117.html">117</a></td>758 <td>NAD</td>759 <td>Abstract semantics, sequence points, and expression evaluation</td>760 <td class="full" align="center">Yes</td>761 </tr>762 <tr id="118">763 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_118.html">118</a></td>764 <td>C89</td>765 <td>Completion point for enumerated types</td>766 <td class="full" align="center">Yes</td>767 </tr>768 <tr id="119">769 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_119.html">119</a></td>770 <td>NAD</td>771 <td>Initialization of multi-dimensional array objects</td>772 <td class="full" align="center">Yes</td>773 </tr>774 <tr id="120">775 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_120.html">120</a></td>776 <td>NAD</td>777 <td>Semantics of assignment to (and initialization of) bit-fields</td>778 <td class="full" align="center">Yes</td>779 </tr>780 <tr id="121">781 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_121.html">121</a></td>782 <td>NAD</td>783 <td>Conversions of pointer values to integral types</td>784 <td class="full" align="center">Yes</td>785 </tr>786 <tr id="122">787 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_122.html">122</a></td>788 <td>Dup</td>789 <td>Conversion/widening of bit-fields</td>790 <td class="full" align="center">Duplicate of <a href="#15">15</a></td>791 </tr>792 <tr id="123">793 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_123.html">123</a></td>794 <td>NAD</td>795 <td>'Type categories' and qualified types</td>796 <td class="full" align="center">Yes</td>797 </tr>798 <tr id="124">799 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_124.html">124</a></td>800 <td>C89</td>801 <td>Casts to 'a void type' versus casts to 'the void type'</td>802 <td class="full" align="center">Yes</td>803 </tr>804 <tr id="125">805 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_125.html">125</a></td>806 <td>NAD</td>807 <td>Using things declared as 'extern (qualified) void'</td>808 <td class="full" align="center">Yes</td>809 </tr>810 <tr id="126">811 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_126.html">126</a></td>812 <td>NAD</td>813 <td>What does 'synonym' mean with respect to typedef names?</td>814 <td class="full" align="center">Yes</td>815 </tr>816 <tr id="127">817 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_127.html">127</a></td>818 <td>Dup</td>819 <td>Composite type of an enumerated type and an integral type</td>820 <td class="full" align="center">Duplicate of <a href="#13">13</a></td>821 </tr>822 <tr id="128">823 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_128.html">128</a></td>824 <td>NAD</td>825 <td>Editorial issue relating to tag declarations in type specifiers</td>826 <td class="full" align="center">Yes</td>827 </tr>828 <tr id="129">829 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_129.html">129</a></td>830 <td>NAD</td>831 <td>Tags and name spaces</td>832 <td class="full" align="center">Yes</td>833 </tr>834 <tr id="130">835 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_130.html">130</a></td>836 <td>NAD</td>837 <td>Guarantees when writing text to a stream</td>838 <td class="na" align="center">N/A</td>839 </tr>840 <tr id="131">841 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_131.html">131</a></td>842 <td>C89</td>843 <td>const member qualification and assignment</td>844 <td class="full" align="center">Yes</td>845 </tr>846 <tr id="132">847 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_132.html">132</a></td>848 <td>Dup</td>849 <td>Can undefined behavior occur at translation time, or only at run time?</td>850 <td class="full" align="center">Duplicate of <a href="#109">109</a></td>851 </tr>852 <tr id="133">853 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_133.html">133</a></td>854 <td>NAD</td>855 <td>Undefined behavior not previously listed in subclause G2</td>856 <td class="full" align="center">Yes</td>857 </tr>858 <tr id="134">859 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_134.html">134</a></td>860 <td>NAD</td>861 <td>What is an 'error number' for strerror?</td>862 <td class="na" align="center">N/A</td>863 </tr>864 <tr id="135">865 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_135.html">135</a></td>866 <td>NAD</td>867 <td>Can the size argument to 'fwrite' be zero?</td>868 <td class="na" align="center">N/A</td>869 </tr>870 <tr id="136">871 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_136.html">136</a></td>872 <td>NAD</td>873 <td>'mktime' and time gaps</td>874 <td class="na" align="center">N/A</td>875 </tr>876 <tr id="137">877 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_137.html">137</a></td>878 <td>NAD</td>879 <td>'printf' and negative floating point values</td>880 <td class="na" align="center">N/A</td>881 </tr>882 <tr id="138">883 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_138.html">138</a></td>884 <td>C89</td>885 <td>Is there an allocated storage duration?</td>886 <td class="full" align="center">Yes</td>887 </tr>888 <tr id="139">889 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_139.html">139</a></td>890 <td>C89</td>891 <td>Compatibility of complete and incomplete types</td>892 <td class="full" align="center">Yes</td>893 </tr>894 <tr id="140">895 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_140.html">140</a></td>896 <td>NAD</td>897 <td>Behavior of 'setvbuf'</td>898 <td class="na" align="center">N/A</td>899 </tr>900 <tr id="141">901 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_141.html">141</a></td>902 <td>NAD</td>903 <td>What is the meaning of EOF?</td>904 <td class="na" align="center">N/A</td>905 </tr>906 <tr id="142">907 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_142.html">142</a></td>908 <td>C89</td>909 <td>Reservation of macro names</td>910 <td class="full" align="center">Yes</td>911 </tr>912 <tr id="143">913 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_143.html">143</a></td>914 <td>C89</td>915 <td>'fopen' modes</td>916 <td class="na" align="center">N/A</td>917 </tr>918 <tr id="144">919 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_144.html">144</a></td>920 <td>C89</td>921 <td>Preprocessing of preprocessing directives</td>922 <td class="full" align="center">Yes</td>923 </tr>924 <tr id="145">925 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_145.html">145</a></td>926 <td>C89</td>927 <td>Constant expressions</td>928 <td class="unknown" align="center">Unknown</td>929 </tr>930 <tr id="146">931 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_146.html">146</a></td>932 <td>C89</td>933 <td>Nugatory constraint</td>934 <td class="full" align="center">Yes</td>935 </tr>936 <tr id="147">937 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_147.html">147</a></td>938 <td>C89</td>939 <td>Sequence points in library functions</td>940 <td class="full" align="center">Yes</td>941 </tr>942 <tr id="148">943 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_148.html">148</a></td>944 <td>NAD</td>945 <td>Defining library functions</td>946 <td class="full" align="center">Yes</td>947 </tr>948 <tr id="149">949 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_149.html">149</a></td>950 <td>C89</td>951 <td>The term "variable"</td>952 <td class="full" align="center">Yes</td>953 </tr>954 <tr id="150">955 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_150.html">150</a></td>956 <td>C89</td>957 <td>Initialization of a char array from a string literal</td>958 <td class="full" align="center">Yes</td>959 </tr>960 <tr id="151">961 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_151.html">151</a></td>962 <td>C89</td>963 <td>Behavior of 'printf' and flags</td>964 <td class="na" align="center">N/A</td>965 </tr>966 <tr id="152">967 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_152.html">152</a></td>968 <td>NAD</td>969 <td>Can you 'longjmp' out of a signal handler?</td>970 <td class="na" align="center">N/A</td>971 </tr>972 <tr id="153">973 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_153.html">153</a></td>974 <td>Dup</td>975 <td>Can 'f()' be considered a call to a function-like macro with one empty argument?</td>976 <td class="unknown" align="center">Duplicate of <a href="#3">3</a></td>977 </tr>978 <tr id="154">979 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_154.html">154</a></td>980 <td>NAD</td>981 <td>Consistency of implementation-defined values</td>982 <td class="full" align="center">Yes</td>983 </tr>984 <tr id="155">985 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_155.html">155</a></td>986 <td>C89</td>987 <td>Zero-sized allocations</td>988 <td class="na" align="center">N/A</td>989 </tr>990 <tr id="156">991 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_156.html">156</a></td>992 <td>C89</td>993 <td>Closed streams</td>994 <td class="na" align="center">N/A</td>995 </tr>996 <tr id="157">997 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_157.html">157</a></td>998 <td>C89</td>999 <td>Legitimacy of type synonyms</td>1000 <td class="full" align="center">Yes</td>1001 </tr>1002 <tr id="158">1003 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_158.html">158</a></td>1004 <td>C89</td>1005 <td>Null pointer conversions</td>1006 <td class="full" align="center">Yes</td>1007 </tr>1008 <tr id="159">1009 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_159.html">159</a></td>1010 <td>C89</td>1011 <td>Consistency of the C Standard Defects exist in the way the Standard refers to itself</td>1012 <td class="full" align="center">Yes</td>1013 </tr>1014 <tr class="open" id="160">1015 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_160.html">160</a></td>1016 <td>Open</td>1017 <td>Reservation of identifiers</td>1018 <td align="center">Not resolved</td>1019 </tr>1020 <tr id="161">1021 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_161.html">161</a></td>1022 <td>NAD</td>1023 <td>Details of reserved symbols</td>1024 <td class="full" align="center">Yes</td>1025 </tr>1026 <tr id="162">1027 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_162.html">162</a></td>1028 <td>C89</td>1029 <td>'gmtime' and 'localtime'</td>1030 <td class="na" align="center">N/A</td>1031 </tr>1032 <tr id="163">1033 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_163.html">163</a></td>1034 <td>C89</td>1035 <td>Undeclared identifiers</td>1036 <td class="full" align="center">Yes</td>1037 </tr>1038 <tr id="164">1039 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_164.html">164</a></td>1040 <td>NAD</td>1041 <td>Bad declarations</td>1042 <td class="full" align="center">Yes</td>1043 </tr>1044 <tr class="open" id="165">1045 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_165.html">165</a></td>1046 <td>C89</td>1047 <td>Tags and incomplete types</td>1048 <td align="center">Not resolved</td>1049 </tr>1050 <tr class="open" id="166">1051 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_166.html">166</a></td>1052 <td>Open</td>1053 <td>Meaning of lvalue</td>1054 <td align="center">Not resolved</td>1055 </tr>1056 <tr class="open" id="167">1057 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_167.html">167</a></td>1058 <td>Open</td>1059 <td>Consistency of the C Standard (Defect Report UK 015)</td>1060 <td align="center">Not resolved</td>1061 </tr>1062 <tr class="open" id="168">1063 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_168.html">168</a></td>1064 <td>Open</td>1065 <td>Consistency of the C Standard (Defect Report UK 016)</td>1066 <td align="center">Not resolved</td>1067 </tr>1068 <tr id="169">1069 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_169.html">169</a></td>1070 <td>NAD</td>1071 <td>Trigraphs</td>1072 <td class="full" align="center">Yes</td>1073 </tr>1074 <tr class="open" id="170">1075 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_170.html">170</a></td>1076 <td>C89</td>1077 <td>Operators and punctuators</td>1078 <td align="center">Not resolved</td>1079 </tr>1080 <tr class="open" id="171">1081 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_171.html">171</a></td>1082 <td>Open</td>1083 <td>Ranges of integral types</td>1084 <td align="center">Not resolved</td>1085 </tr>1086 <tr class="open" id="172">1087 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_172.html">172</a></td>1088 <td>Open</td>1089 <td>Relational and equality operators</td>1090 <td align="center">Not resolved</td>1091 </tr>1092 <tr class="open" id="173">1093 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_173.html">173</a></td>1094 <td>Open</td>1095 <td>Line numbers</td>1096 <td align="center">Not resolved</td>1097 </tr>1098 <tr class="open" id="174">1099 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_174.html">174</a></td>1100 <td>Open</td>1101 <td>Implicit conversions</td>1102 <td align="center">Not resolved</td>1103 </tr>1104 <tr class="open" id="175">1105 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_175.html">175</a></td>1106 <td>Open</td>1107 <td>Correction to Technical Corrigendum 1</td>1108 <td align="center">Not resolved</td>1109 </tr>1110 <tr class="open" id="176">1111 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_176.html">176</a></td>1112 <td>Open</td>1113 <td>Diagnostics for #error</td>1114 <td align="center">Not resolved</td>1115 </tr>1116 <tr class="open" id="177">1117 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_177.html">177</a></td>1118 <td>Open</td>1119 <td>Preprocessing directives</td>1120 <td align="center">Not resolved</td>1121 </tr>1122 <tr class="open" id="178">1123 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_178.html">178</a></td>1124 <td>Open</td>1125 <td>Conformance with array members and allocations</td>1126 <td align="center">Not resolved</td>1127 </tr>1128 <tr id="201">1129 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_201.htm">201</a></td>1130 <td>NAD</td>1131 <td>Integer types longer than long</td>1132 <td class="full" align="center">Yes</td>1133 </tr>1134 <tr id="202">1135 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_202.htm">202</a></td>1136 <td>C99</td>1137 <td>Change return type of certain <fenv.h> functions</td>1138 <td class="na" align="center">N/A</td>1139 </tr>1140 <tr id="203">1141 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_203.htm">203</a></td>1142 <td>C99</td>1143 <td>C locale conflict with ISO/IEC 9945-2</td>1144 <td class="na" align="center">N/A</td>1145 </tr>1146 <tr id="204">1147 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_204.htm">204</a></td>1148 <td>C99</td>1149 <td>size_t and ptrdiff_t as a long long type</td>1150 <td class="full" align="center">Yes</td>1151 </tr>1152 <tr id="205">1153 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_205.htm">205</a></td>1154 <td>NAD</td>1155 <td>New keyword __at_least</td>1156 <td class="full" align="center">Yes</td>1157 </tr>1158 <tr id="206">1159 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_206.htm">206</a></td>1160 <td>NAD</td>1161 <td>Default argument conversion of float _Complex</td>1162 <td class="full" align="center">Yes</td>1163 </tr>1164 <tr id="207">1165 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_207.htm">207</a></td>1166 <td>C99</td>1167 <td>Handling of imaginary types</td>1168 <td class="partial" align="center">1169 <details><summary>Partial</summary>1170 Clang detects use of the _Imaginary keyword but does not otherwise1171 support the type yet.1172 </details>1173 </td>1174 </tr>1175 <tr id="208">1176 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_208.htm">208</a></td>1177 <td>C99</td>1178 <td>Ambiguity in initialization</td>1179 <td class="full" align="center">Yes</td>1180 </tr>1181 <tr id="209">1182 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_209.htm">209</a></td>1183 <td>C99</td>1184 <td>Problem implementing INTN_C macros</td>1185 <td class="partial" align="center">1186 <details><summary>Partial</summary>1187 Clang provides these definitions in a freestanding compilation, but the1188 type of the value produced by <code>UINT8_C</code> and <code>UINT16_C</code>1189 is not the type after integer promotion per C99 7.18.4p3.1190 </details>1191 </td>1192 </tr>1193 <tr id="210">1194 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_210.htm">210</a></td>1195 <td>C99</td>1196 <td>'fprintf' %a and %A conversions recommended practice</td>1197 <td class="na" align="center">N/A</td>1198 </tr>1199 <tr id="211">1200 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_211.htm">211</a></td>1201 <td>C99</td>1202 <td>Accuracy of decimal string to/from "binary" (non-decimal) floating-point conversions</td>1203 <td class="full" align="center">Yes</td>1204 </tr>1205 <tr id="212">1206 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_212.htm">212</a></td>1207 <td>NAD</td>1208 <td>Binding of multibyte conversion state objects</td>1209 <td class="na" align="center">N/A</td>1210 </tr>1211 <tr id="213">1212 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_213.htm">213</a></td>1213 <td>C99</td>1214 <td>Lacuna in 'mbrtowc'</td>1215 <td class="na" align="center">N/A</td>1216 </tr>1217 <tr id="214">1218 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_214.htm">214</a></td>1219 <td>NAD</td>1220 <td>'atexit' function registration</td>1221 <td class="na" align="center">N/A</td>1222 </tr>1223 <tr id="215">1224 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_215.htm">215</a></td>1225 <td>C99</td>1226 <td>Equality operators</td>1227 <td class="full" align="center">Yes</td>1228 </tr>1229 <tr id="216">1230 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_216.htm">216</a></td>1231 <td>C99</td>1232 <td>Source character encodings</td>1233 <td class="full" align="center">Yes</td>1234 </tr>1235 <tr id="217">1236 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_217.htm">217</a></td>1237 <td>NAD</td>1238 <td>'asctime' limits</td>1239 <td class="na" align="center">N/A</td>1240 </tr>1241 <tr id="218">1242 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_218.htm">218</a></td>1243 <td>C99</td>1244 <td>Signs of non-numeric floating point values</td>1245 <td class="full" align="center">Yes</td>1246 </tr>1247 <tr id="219">1248 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_219.htm">219</a></td>1249 <td>NAD</td>1250 <td>Effective types</td>1251 <td class="full" align="center">Yes</td>1252 </tr>1253 <tr id="220">1254 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_220.htm">220</a></td>1255 <td>C99</td>1256 <td>Definition of "decimal integer"</td>1257 <td class="na" align="center">N/A</td>1258 </tr>1259 <tr id="221">1260 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_221.htm">221</a></td>1261 <td>NAD</td>1262 <td>Lacuna in pointer arithmetic</td>1263 <td class="full" align="center">Yes</td>1264 </tr>1265 <tr id="222">1266 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_222.htm">222</a></td>1267 <td>C99</td>1268 <td>Partially initialized structures</td>1269 <td class="full" align="center">Yes</td>1270 </tr>1271 <tr id="223">1272 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_223.htm">223</a></td>1273 <td>C99</td>1274 <td>'FP_FAST_FMAF' and 'FP_FAST_FMAL' should be integer constant</td>1275 <td class="na" align="center">N/A</td>1276 </tr>1277 <tr id="224">1278 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_224.htm">224</a></td>1279 <td>C99</td>1280 <td>fpclassify return is not defined</td>1281 <td class="na" align="center">N/A</td>1282 </tr>1283 <tr id="225">1284 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_225.htm">225</a></td>1285 <td>C99</td>1286 <td>strtod, strtof and strtold expected form of the subject sequence</td>1287 <td class="na" align="center">N/A</td>1288 </tr>1289 <tr id="226">1290 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_226.htm">226</a></td>1291 <td>NAD</td>1292 <td>strftime references</td>1293 <td class="na" align="center">N/A</td>1294 </tr>1295 <tr id="227">1296 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_227.htm">227</a></td>1297 <td>NAD</td>1298 <td>strftime %U, %V, and %W conversion specifiers</td>1299 <td class="na" align="center">N/A</td>1300 </tr>1301 <tr id="228">1302 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_228.htm">228</a></td>1303 <td>C99</td>1304 <td>wmemcmp declaration in Annex B</td>1305 <td class="na" align="center">N/A</td>1306 </tr>1307 <tr id="229">1308 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_229.htm">229</a></td>1309 <td>C99</td>1310 <td>localeconv() *_sep_by_space table entries issues</td>1311 <td class="na" align="center">N/A</td>1312 </tr>1313 <tr id="230">1314 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_230.htm">230</a></td>1315 <td>C99</td>1316 <td>Enumerated type rank</td>1317 <td class="full" align="center">Yes</td>1318 </tr>1319 <tr id="231">1320 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_231.htm">231</a></td>1321 <td>NAD</td>1322 <td>Semantics of text-line and non-directive</td>1323 <td class="none" align="center">No</td>1324 </tr>1325 <tr id="232">1326 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_232.htm">232</a></td>1327 <td>C99</td>1328 <td>Typo in Annex I</td>1329 <td class="na" align="center">N/A</td>1330 </tr>1331 <tr id="233">1332 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_233.htm">233</a></td>1333 <td>C99</td>1334 <td>%g, %G precision specification</td>1335 <td class="na" align="center">N/A</td>1336 </tr>1337 <tr id="234">1338 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_234.htm">234</a></td>1339 <td>C99</td>1340 <td>Miscellaneous Typos</td>1341 <td class="full" align="center">Yes</td>1342 </tr>1343 <tr id="235">1344 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_235.htm">235</a></td>1345 <td>C99</td>1346 <td>"C" locale collating behaviour not defined</td>1347 <td class="na" align="center">N/A</td>1348 </tr>1349 <tr id="236">1350 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_236.htm">236</a></td>1351 <td>NAD</td>1352 <td>The interpretation of type based aliasing rule when applied to union objects or allocated objects</td>1353 <td class="unknown" align="center">Unknown</td>1354 </tr>1355 <tr id="237">1356 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_237.htm">237</a></td>1357 <td>NAD</td>1358 <td>Declarations using [static]</td>1359 <td class="none" align="center">No</td>1360 </tr>1361 <tr id="238">1362 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_238.htm">238</a></td>1363 <td>C99</td>1364 <td>Decriptions of fma() overflow and underflow errors are missing</td>1365 <td class="na" align="center">N/A</td>1366 </tr>1367 <tr id="239">1368 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_239.htm">239</a></td>1369 <td>C99</td>1370 <td>Annex F nexttoward description is inconsistent with 7.12.11.4 and F.9.8.3</td>1371 <td class="na" align="center">N/A</td>1372 </tr>1373 <tr id="240">1374 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_240.htm">240</a></td>1375 <td>C99</td>1376 <td>lrint, llrint, lround, llround, and ilogb descriptions are not consistent for unrepresentable results</td>1377 <td class="na" align="center">N/A</td>1378 </tr>1379 <tr id="241">1380 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_241.htm">241</a></td>1381 <td>C99</td>1382 <td>Make the base standard and Annex F consistent for pow(0, <0)</td>1383 <td class="na" align="center">N/A</td>1384 </tr>1385 <tr id="242">1386 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_242.htm">242</a></td>1387 <td>C99</td>1388 <td>Make the base standard and Annex F consistent for logb(0)</td>1389 <td class="na" align="center">N/A</td>1390 </tr>1391 <tr id="243">1392 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_243.htm">243</a></td>1393 <td>C99</td>1394 <td>Make the base standard and Annex F consistent for fmod(), remainder(), and remquo() for a zero divisor</td>1395 <td class="na" align="center">N/A</td>1396 </tr>1397 <tr id="244">1398 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_244.htm">244</a></td>1399 <td>C99</td>1400 <td>tgamma(zero or negative integer) should be considered a pole error</td>1401 <td class="na" align="center">N/A</td>1402 </tr>1403 <tr id="245">1404 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_245.htm">245</a></td>1405 <td>C99</td>1406 <td>Missing paragraph numbers</td>1407 <td class="full" align="center">Yes</td>1408 </tr>1409 <tr id="246">1410 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_246.htm">246</a></td>1411 <td>NAD</td>1412 <td>Completion of declarators</td>1413 <td class="full" align="center">Yes</td>1414 </tr>1415 <tr id="247">1416 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_247.htm">247</a></td>1417 <td>C99</td>1418 <td>Are values a form of behaviour?</td>1419 <td class="full" align="center">Yes</td>1420 </tr>1421 <tr id="248">1422 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_248.htm">248</a></td>1423 <td>C99</td>1424 <td>Limits are required for optional types</td>1425 <td class="full" align="center">Yes</td>1426 </tr>1427 <tr id="249">1428 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_249.htm">249</a></td>1429 <td>Dup</td>1430 <td>Lacuna applying C89:TC1 to C99</td>1431 <td class="none" align="center">Duplicate of <a href="#9">9</a></td>1432 </tr>1433 <tr id="250">1434 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_250.htm">250</a></td>1435 <td>C99</td>1436 <td>Non-directives within macro arguments</td>1437 <td class="full" align="center">Yes</td>1438 </tr>1439 <tr id="251">1440 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_251.htm">251</a></td>1441 <td>C99</td>1442 <td>Are struct fred and union fred the same type?</td>1443 <td class="full" align="center">Yes</td>1444 </tr>1445 <tr id="252">1446 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_252.htm">252</a></td>1447 <td>NAD</td>1448 <td>Incomplete argument types when calling non-prototyped functions</td>1449 <td class="full" align="center">Yes</td>1450 </tr>1451 <tr id="253">1452 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_253.htm">253</a></td>1453 <td>NAD</td>1454 <td>"overriding" in designated initializers</td>1455 <td class="full" align="center">Yes</td>1456 </tr>1457 <tr id="254">1458 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_254.htm">254</a></td>1459 <td>NAD</td>1460 <td>mbtowc and partial characters</td>1461 <td class="na" align="center">N/A</td>1462 </tr>1463 <tr id="255">1464 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_255.htm">255</a></td>1465 <td>NAD</td>1466 <td>Non-prototyped function calls and argument mismatches</td>1467 <td class="full" align="center">Yes</td>1468 </tr>1469 <tr id="256">1470 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_256.htm">256</a></td>1471 <td>NAD</td>1472 <td>Multiple inclusion of headers</td>1473 <td class="na" align="center">N/A</td>1474 </tr>1475 <tr id="257">1476 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_257.htm">257</a></td>1477 <td>NAD</td>1478 <td>Common initial sequences and related issues with unions</td>1479 <td class="unknown" align="center">Unknown</td>1480 </tr>1481 <tr id="258">1482 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_258.htm">258</a></td>1483 <td>NAD</td>1484 <td>Ordering of "defined" and macro replacement</td>1485 <td class="full" align="center">Yes</td>1486 </tr>1487 <tr id="259">1488 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_259.htm">259</a></td>1489 <td>NAD</td>1490 <td>Macro invocations with no arguments</td>1491 <td class="full" align="center">Yes</td>1492 </tr>1493 <tr id="260">1494 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_260.htm">260</a></td>1495 <td>NAD</td>1496 <td>Indeterminate values and identical representations</td>1497 <td class="unknown" align="center">Unknown</td>1498 </tr>1499 <tr id="261">1500 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_261.htm">261</a></td>1501 <td>NAD</td>1502 <td>Constant expressions</td>1503 <td class="full" align="center">Yes</td>1504 </tr>1505 <tr id="262">1506 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_262.htm">262</a></td>1507 <td>C99</td>1508 <td>Maximum size of bit fields</td>1509 <td class="full" align="center">Yes</td>1510 </tr>1511 <tr id="263">1512 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_263.htm">263</a></td>1513 <td>C99</td>1514 <td>All-zero bits representations</td>1515 <td class="full" align="center">Yes</td>1516 </tr>1517 <tr id="264">1518 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_264.htm">264</a></td>1519 <td>NAD</td>1520 <td>Graphic characters</td>1521 <td class="na" align="center">N/A</td>1522 </tr>1523 <tr id="265">1524 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_265.htm">265</a></td>1525 <td>C99</td>1526 <td>Preprocessor arithmetic</td>1527 <td class="full" align="center">Yes</td>1528 </tr>1529 <tr id="266">1530 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_266.htm">266</a></td>1531 <td>NAD</td>1532 <td>Overflow of sizeof</td>1533 <td class="full" align="center">Yes</td>1534 </tr>1535 <tr id="267">1536 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_267.htm">267</a></td>1537 <td>C99</td>1538 <td>Typos in 5.1.2.3, 7.24.4.4.5, 7.24.6.1, 7.24.6.1</td>1539 <td class="full" align="center">Yes</td>1540 </tr>1541 <tr id="268">1542 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_268.htm">268</a></td>1543 <td>C99</td>1544 <td>Jumps into iteration statements</td>1545 <td class="full" align="center">Yes</td>1546 </tr>1547 <tr id="269">1548 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_269.htm">269</a></td>1549 <td>C99</td>1550 <td>Lacunae in exact-width integer types</td>1551 <td class="na" align="center">N/A</td>1552 </tr>1553 <tr id="270">1554 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_270.htm">270</a></td>1555 <td>C99</td>1556 <td>wint_t is not the promoted version of wchar_t</td>1557 <td class="na" align="center">N/A</td>1558 </tr>1559 <tr id="271">1560 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_271.htm">271</a></td>1561 <td>NAD</td>1562 <td>Lacuna in iswctype and towctrans</td>1563 <td class="na" align="center">N/A</td>1564 </tr>1565 <tr id="272">1566 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_272.htm">272</a></td>1567 <td>C99</td>1568 <td>Type category</td>1569 <td class="full" align="center">Yes</td>1570 </tr>1571 <tr id="273">1572 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_273.htm">273</a></td>1573 <td>C99</td>1574 <td>Meaning of __STDC_ISO_10646__</td>1575 <td class="full" align="center">1576 <details><summary>Yes</summary>1577 The compiler portion of this DR is implemented in Clang, but the1578 <code>__STDC_ISO_10646__</code> macro is not defined by Clang; the1579 standard library behavior factors into whether this macro can or cannot1580 be defined.1581 </details>1582 </td>1583 </tr>1584 <tr id="274">1585 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_274.htm">274</a></td>1586 <td>C99</td>1587 <td>Meaning of "character" in <string.h> functions</td>1588 <td class="na" align="center">N/A</td>1589 </tr>1590 <tr id="275">1591 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_275.htm">275</a></td>1592 <td>C99</td>1593 <td>Bitwise-OR of nothing</td>1594 <td class="na" align="center">N/A</td>1595 </tr>1596 <tr id="276">1597 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_276.htm">276</a></td>1598 <td>C99</td>1599 <td>Orientation of perror</td>1600 <td class="na" align="center">N/A</td>1601 </tr>1602 <tr id="277">1603 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_277.htm">277</a></td>1604 <td>NAD</td>1605 <td>Declarations within iteration statements</td>1606 <td class="none" align="center">No</td>1607 </tr>1608 <tr id="278">1609 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_278.htm">278</a></td>1610 <td>C99</td>1611 <td>Lacuna in character encodings</td>1612 <td class="full" align="center">Yes</td>1613 </tr>1614 <tr id="279">1615 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_279.htm">279</a></td>1616 <td>C99</td>1617 <td>Wide character code values for members of the basic character set</td>1618 <td class="full" align="center">Yes</td>1619 </tr>1620 <tr id="280">1621 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_280.htm">280</a></td>1622 <td>NAD</td>1623 <td>struct tm, member tm_isdst, and mktime() in <time.h></td>1624 <td class="na" align="center">N/A</td>1625 </tr>1626 <tr id="281">1627 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_281.htm">281</a></td>1628 <td>C99</td>1629 <td>CLOCKS_PER_SEC should not be a constant expression</td>1630 <td class="na" align="center">N/A</td>1631 </tr>1632 <tr id="282">1633 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_282.htm">282</a></td>1634 <td>C99</td>1635 <td>Flexible array members & struct padding</td>1636 <td class="full" align="center">Yes</td>1637 </tr>1638 <tr id="283">1639 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_283.htm">283</a></td>1640 <td>C99</td>1641 <td>Accessing a non-current union member ("type punning")</td>1642 <td class="unknown" align="center">Unknown</td>1643 </tr>1644 <tr id="284">1645 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_284.htm">284</a></td>1646 <td>NAD</td>1647 <td>Does <math.h> define INT_MIN and INT_MAX?</td>1648 <td class="na" align="center">N/A</td>1649 </tr>1650 <tr id="285">1651 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_285.htm">285</a></td>1652 <td>C99</td>1653 <td>Conversion of an imaginary type to _Bool</td>1654 <td class="partial" align="center">1655 <details><summary>Partial</summary>1656 Clang detects use of the _Imaginary keyword but does not otherwise1657 support the type yet.1658 </details>1659 </td>1660 </tr>1661 <tr id="286">1662 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_286.htm">286</a></td>1663 <td>C99</td>1664 <td>Correctly rounded and rounding direction/mode</td>1665 <td class="na" align="center">N/A</td>1666 </tr>1667 <tr id="287">1668 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_287.htm">287</a></td>1669 <td>Dup</td>1670 <td>Floating-point status flags and sequence points</td>1671 <td class="unknown" align="center">Duplicate of <a href="#87">87</a></td>1672 </tr>1673 <tr id="288">1674 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_288.htm">288</a></td>1675 <td>NAD</td>1676 <td>Deficiency on multibyte conversions</td>1677 <td class="na" align="center">N/A</td>1678 </tr>1679 <tr id="289">1680 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_289.htm">289</a></td>1681 <td>C99</td>1682 <td>Function prototype with [restrict]</td>1683 <td class="full" align="center">Yes</td>1684 </tr>1685 <tr id="290">1686 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_290.htm">290</a></td>1687 <td>C99</td>1688 <td>FLT_EVAL_METHOD and extra precision and/or range</td>1689 <td class="none" align="center">No</td>1690 </tr>1691 <tr id="291">1692 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_291.htm">291</a></td>1693 <td>C99</td>1694 <td>Corrections to requirements on inexact floating-point exceptions</td>1695 <td class="unknown" align="center">Unknown</td>1696 </tr>1697 <tr id="292">1698 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_292.htm">292</a></td>1699 <td>C99</td>1700 <td>Use of the word variable</td>1701 <td class="full" align="center">Yes</td>1702 </tr>1703 <tr id="293">1704 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_293.htm">293</a></td>1705 <td>C99</td>1706 <td>Typo in Standard - double complex instead of complex in an example</td>1707 <td class="full" align="center">Yes</td>1708 </tr>1709 <tr id="294">1710 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_294.htm">294</a></td>1711 <td>NAD</td>1712 <td>Technical question on C99 restrict keyword</td>1713 <td class="unknown" align="center">Unknown</td>1714 </tr>1715 <tr id="295">1716 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_295.htm">295</a></td>1717 <td>C99</td>1718 <td>Incomplete types for function parameters</td>1719 <td class="full" align="center">Yes</td>1720 </tr>1721 <tr id="296">1722 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_296.htm">296</a></td>1723 <td>C99</td>1724 <td>Is exp(INFINITY) overflow? A range error? A divide-by-zero exception? INFINITY without any errors?</td>1725 <td class="na" align="center">N/A</td>1726 </tr>1727 <tr id="297">1728 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_297.htm">297</a></td>1729 <td>C99</td>1730 <td>May FE_* floating-point exception flags have bits in common?</td>1731 <td class="na" align="center">N/A</td>1732 </tr>1733 <tr id="298">1734 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_298.htm">298</a></td>1735 <td>C99</td>1736 <td>Validity of constant in unsigned long long range</td>1737 <td class="partial" align="center">1738 <details><summary>Partial</summary>1739 Clang defines the behavior in this situation by automatically using1740 <code>long long</code> or <code>unsigned long long</code> as the1741 underlying type of the constant; however, Clang fails to diagnose the1742 extension in C89 mode with such constants.1743 </details>1744 </td>1745 </tr>1746 <tr id="299">1747 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_299.htm">299</a></td>1748 <td>C99</td>1749 <td>Is cabs() a type-generic macro?</td>1750 <td class="na" align="center">N/A</td>1751 </tr>1752 <tr id="300">1753 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_300.htm">300</a></td>1754 <td>NAD</td>1755 <td>Translation-time expresssion evaluation</td>1756 <td class="full" align="center">Yes</td>1757 </tr>1758 <tr id="301">1759 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_301.htm">301</a></td>1760 <td>NAD</td>1761 <td>Meaning of FE_* macros in <fenv.h></td>1762 <td class="full" align="center">Yes</td>1763 </tr>1764 <tr id="302">1765 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_302.htm">302</a></td>1766 <td>C99</td>1767 <td>6.10.2p5: Adding underscore to portable include file name character set</td>1768 <td class="full" align="center">Yes</td>1769 </tr>1770 <tr id="303">1771 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_303.htm">303</a></td>1772 <td>C99</td>1773 <td>6.10p2: Breaking up the very long sentence describing preprocessing directive</td>1774 <td class="full" align="center">Yes</td>1775 </tr>1776 <tr id="304">1777 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_304.htm">304</a></td>1778 <td>C99</td>1779 <td>Clarifying illegal tokens in #if directives</td>1780 <td class="full" align="center">Yes</td>1781 </tr>1782 <tr id="305">1783 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_305.htm">305</a></td>1784 <td>C99</td>1785 <td>6.10.1p3: Clarifying handling of keywords in #if directives</td>1786 <td class="full" align="center">Yes</td>1787 </tr>1788 <tr id="306">1789 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_306.htm">306</a></td>1790 <td>C99</td>1791 <td>6.10.3p9: Clarifying that rescanning applies to object-like macros</td>1792 <td class="full" align="center">Yes</td>1793 </tr>1794 <tr id="307">1795 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_307.htm">307</a></td>1796 <td>C99</td>1797 <td>6.10.3p10: Clarifiying arguments vs. parameters</td>1798 <td class="full" align="center">Yes</td>1799 </tr>1800 <tr id="308">1801 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_308.htm">308</a></td>1802 <td>C99</td>1803 <td>Clarify that source files et al. need not be "files"</td>1804 <td class="full" align="center">Yes</td>1805 </tr>1806 <tr id="309">1807 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_309.htm">309</a></td>1808 <td>C99</td>1809 <td>Clarifying trigraph substitution</td>1810 <td class="full" align="center">Yes</td>1811 </tr>1812 <tr id="310">1813 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_310.htm">310</a></td>1814 <td>C99</td>1815 <td>Add non-corner case example of trigraphs</td>1816 <td class="full" align="center">Yes</td>1817 </tr>1818 <tr id="311">1819 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_311.htm">311</a></td>1820 <td>C99</td>1821 <td>Definition of variably modified types</td>1822 <td class="full" align="center">Yes</td>1823 </tr>1824 <tr id="312">1825 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_312.htm">312</a></td>1826 <td>C99</td>1827 <td>Meaning of "known constant size"</td>1828 <td class="full" align="center">Yes</td>1829 </tr>1830 <tr id="313">1831 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_313.htm">313</a></td>1832 <td>NAD</td>1833 <td>Incomplete arrays of VLAs</td>1834 <td class="full" align="center">Yes</td>1835 </tr>1836 <tr id="314">1837 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_314.htm">314</a></td>1838 <td>NAD</td>1839 <td>Cross-translation-unit tagged type compatibility</td>1840 <td class="unknown" align="center">Unknown</td>1841 </tr>1842 <tr id="315">1843 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_315.htm">315</a></td>1844 <td>C99</td>1845 <td>Implementation-defined bit-field types</td>1846 <td class="full" align="center">Yes</td>1847 </tr>1848 <tr id="316">1849 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_316.htm">316</a></td>1850 <td>NAD</td>1851 <td>Unprototyped function types</td>1852 <td class="full" align="center">Yes</td>1853 </tr>1854 <tr id="317">1855 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_317.htm">317</a></td>1856 <td>NAD</td>1857 <td>Function definitions with empty parentheses</td>1858 <td class="full" align="center">Yes</td>1859 </tr>1860 <tr id="318">1861 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_318.htm">318</a></td>1862 <td>C99</td>1863 <td>(double)0.1f with FLT_EVAL_METHOD being 2</td>1864 <td class="unknown" align="center">Unknown</td>1865 </tr>1866 <tr id="319">1867 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_319.htm">319</a></td>1868 <td>NAD</td>1869 <td>printf("%a", 1.0) and trailing zeros</td>1870 <td class="na" align="center">N/A</td>1871 </tr>1872 <tr id="320">1873 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_320.htm">320</a></td>1874 <td>C99</td>1875 <td>Scope of variably modified type</td>1876 <td class="full" align="center">Yes</td>1877 </tr>1878 <tr id="321">1879 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_321.htm">321</a></td>1880 <td>C99</td>1881 <td>Wide character code values for members of the basic character set</td>1882 <td class="full" align="center">Yes</td>1883 </tr>1884 <tr id="322">1885 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_322.htm">322</a></td>1886 <td>C99</td>1887 <td>Problem with TC2 Change #67 (Add perror to the list defining byte input/output functions)</td>1888 <td class="na" align="center">N/A</td>1889 </tr>1890 <tr id="323">1891 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_323.htm">323</a></td>1892 <td>C99</td>1893 <td>Potential problems with TC2 #34, #35, and #36</td>1894 <td class="na" align="center">N/A</td>1895 </tr>1896 <tr id="324">1897 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_324.htm">324</a></td>1898 <td>C99</td>1899 <td>Tokenization obscurities</td>1900 <td class="full" align="center">Yes</td>1901 </tr>1902 <tr id="325">1903 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_325.htm">325</a></td>1904 <td>NAD</td>1905 <td>strerror()</td>1906 <td class="na" align="center">N/A</td>1907 </tr>1908 <tr id="326">1909 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_326.htm">326</a></td>1910 <td>C99</td>1911 <td>asctime()</td>1912 <td class="na" align="center">N/A</td>1913 </tr>1914 <tr id="327">1915 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_327.htm">327</a></td>1916 <td>C99</td>1917 <td>Italicize definition of variable length array type, add forward references</td>1918 <td class="full" align="center">Yes</td>1919 </tr>1920 <tr id="328">1921 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_328.htm">328</a></td>1922 <td>C99</td>1923 <td>String literals in compound literal initialization</td>1924 <td class="partial" align="center">1925 <details><summary>Partial</summary>1926 Clang properly implements the use of string literals in a compound1927 literal initializer, but fails to diagnose use of a variably-modified1928 type at file scope. DR339 (about variably-modified types) is marked as1929 a duplicate of DR328.1930 </details>1931 </td>1932 </tr>1933 <tr id="329">1934 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_329.htm">329</a></td>1935 <td>C99</td>1936 <td>Math functions and directed rounding</td>1937 <td class="na" align="center">N/A</td>1938 </tr>1939 <tr id="330">1940 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_330.htm">330</a></td>1941 <td>C99</td>1942 <td>Externally visible exceptional conditions</td>1943 <td class="na" align="center">N/A</td>1944 </tr>1945 <tr id="331">1946 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_331.htm">331</a></td>1947 <td>NAD</td>1948 <td>permit FE_DIVBYZERO when errno says EDOM</td>1949 <td class="na" align="center">N/A</td>1950 </tr>1951 <tr id="332">1952 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_332.htm">332</a></td>1953 <td>C99</td>1954 <td>gets is generally unsafe</td>1955 <td class="na" align="center">N/A</td>1956 </tr>1957 <tr id="333">1958 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_333.htm">333</a></td>1959 <td>C99</td>1960 <td>Missing Predefined Macro Name</td>1961 <td class="full" align="center">Yes</td>1962 </tr>1963 <tr class="open" id="334">1964 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_334.htm">334</a></td>1965 <td>Open</td>1966 <td>Missing semantics of comparison macros</td>1967 <td align="center">Not resolved</td>1968 </tr>1969 <tr id="335">1970 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_335.htm">335</a></td>1971 <td>NAD</td>1972 <td>_Bool bit-fields</td>1973 <td class="full" align="center">Yes</td>1974 </tr>1975 <tr id="336">1976 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_336.htm">336</a></td>1977 <td>C99</td>1978 <td>What does TMP_MAX actually indicate?</td>1979 <td class="na" align="center">N/A</td>1980 </tr>1981 <tr id="337">1982 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_337.htm">337</a></td>1983 <td>C99</td>1984 <td>stdio.h macro definition problems</td>1985 <td class="na" align="center">N/A</td>1986 </tr>1987 <tr id="338">1988 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_338.htm">338</a></td>1989 <td>C99</td>1990 <td>C99 seems to exclude indeterminate value from being an uninitialized register</td>1991 <td class="full" align="center">Yes</td>1992 </tr>1993 <tr id="339">1994 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_339.htm">339</a></td>1995 <td>Dup</td>1996 <td>Variably modified compound literal</td>1997 <td class="partial" align="center">Duplicate of <a href="#328">328</a></td>1998 </tr>1999 <tr id="340">2000 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_340.htm">340</a></td>2001 <td>C99</td>2002 <td>Composite types for variable-length arrays</td>2003 <td class="full" align="center">Yes</td>2004 </tr>2005 <tr id="341">2006 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_341.htm">341</a></td>2007 <td>C99</td>2008 <td>[*] in abstract declarators</td>2009 <td class="full" align="center">Yes</td>2010 </tr>2011 <tr id="342">2012 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_342.htm">342</a></td>2013 <td>Dup</td>2014 <td>VLAs and conditional expressions</td>2015 <td class="full" align="center">Duplicate of <a href="#340">340</a></td>2016 </tr>2017 <tr id="343">2018 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_343.htm">343</a></td>2019 <td>C99</td>2020 <td>Initializing qualified wchar_t arrays</td>2021 <td class="full" align="center">Yes</td>2022 </tr>2023 <tr id="344">2024 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_344.htm">344</a></td>2025 <td>C99</td>2026 <td>Casts in preprocessor conditional expressions</td>2027 <td class="full" align="center">Yes</td>2028 </tr>2029 <tr id="345">2030 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/dr_345.htm">345</a></td>2031 <td>C99</td>2032 <td>Where does parameter scope start?</td>2033 <td class="full" align="center">Yes</td>2034 </tr>2035 <tr id="400">2036 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_400">400</a></td>2037 <td>C11</td>2038 <td>realloc with size zero problems</td>2039 <td class="unknown" align="center">Unknown</td>2040 </tr>2041 <tr id="401">2042 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_401">401</a></td>2043 <td>C11</td>2044 <td>"happens before" can not be cyclic</td>2045 <td class="full" align="center">Yes</td>2046 </tr>2047 <tr id="402">2048 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_402">402</a></td>2049 <td>C11</td>2050 <td>Memory model coherence is not aligned with C++11</td>2051 <td class="full" align="center">Yes</td>2052 </tr>2053 <tr id="403">2054 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_403">403</a></td>2055 <td>C11</td>2056 <td>malloc() and free() in the memory model</td>2057 <td class="na" align="center">N/A</td>2058 </tr>2059 <tr id="404">2060 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_404">404</a></td>2061 <td>C11</td>2062 <td>Joke fragment remains in a footnote</td>2063 <td class="full" align="center">Yes</td>2064 </tr>2065 <tr id="405">2066 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_405">405</a></td>2067 <td>C11</td>2068 <td>The mutex specification</td>2069 <td class="na" align="center">N/A</td>2070 </tr>2071 <tr id="406">2072 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_406">406</a></td>2073 <td>C11</td>2074 <td>Visible sequences of side effects are redundant</td>2075 <td class="full" align="center">Yes</td>2076 </tr>2077 <tr id="407">2078 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_407">407</a></td>2079 <td>C11</td>2080 <td>Memory ordering of atomics</td>2081 <td class="unknown" align="center">Unknown</td>2082 </tr>2083 <tr id="408">2084 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_408">408</a></td>2085 <td>NAD</td>2086 <td>Should locks provide intra-thread synchronization</td>2087 <td class="na" align="center">N/A</td>2088 </tr>2089 <tr id="409">2090 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_409">409</a></td>2091 <td>C11</td>2092 <td>f(inf) is inf being a range error</td>2093 <td class="na" align="center">N/A</td>2094 </tr>2095 <tr id="410">2096 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_410">410</a></td>2097 <td>C11</td>2098 <td>ilogb inconsistent with lrint, lround</td>2099 <td class="na" align="center">N/A</td>2100 </tr>2101 <tr id="411">2102 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_411">411</a></td>2103 <td>C11</td>2104 <td>Predefined macro values</td>2105 <td class="full" align="center">Yes</td>2106 </tr>2107 <tr id="412">2108 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_412">412</a></td>2109 <td>C11</td>2110 <td>#elif</td>2111 <td class="full" align="center">Yes</td>2112 </tr>2113 <tr id="413">2114 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_413">413</a></td>2115 <td>NAD</td>2116 <td>Initialization</td>2117 <td class="full" align="center">Yes</td>2118 </tr>2119 <tr id="414">2120 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_414">414</a></td>2121 <td>C11</td>2122 <td>Typos in 6.27 Threads <threads.h></td>2123 <td class="na" align="center">N/A</td>2124 </tr>2125 <tr id="415">2126 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_415">415</a></td>2127 <td>C11</td>2128 <td>Missing divide by zero entry in Annex J</td>2129 <td class="full" align="center">Yes</td>2130 </tr>2131 <tr id="416">2132 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_416">416</a></td>2133 <td>C11</td>2134 <td>tss_t destruction unspecified</td>2135 <td class="na" align="center">N/A</td>2136 </tr>2137 <tr id="417">2138 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_417">417</a></td>2139 <td>C11</td>2140 <td>Annex J not updated with necessary aligned_alloc entries</td>2141 <td class="full" align="center">Yes</td>2142 </tr>2143 <tr id="418">2144 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_418">418</a></td>2145 <td>NAD</td>2146 <td>Possible defect report: fmod(0.,NaN) and fmod(NaN,infinity)</td>2147 <td class="na" align="center">N/A</td>2148 </tr>2149 <tr id="419">2150 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_419">419</a></td>2151 <td>C11</td>2152 <td>Generic Functions</td>2153 <td class="full" align="center">Yes</td>2154 </tr>2155 <tr id="420">2156 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_420">420</a></td>2157 <td>NAD</td>2158 <td>Sytax error in specification of for-statement</td>2159 <td class="full" align="center">Yes</td>2160 </tr>2161 <tr id="421">2162 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_421">421</a></td>2163 <td>NAD</td>2164 <td>Initialization of atomic_flag</td>2165 <td class="na" align="center">N/A</td>2166 </tr>2167 <tr id="422">2168 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_422">422</a></td>2169 <td>NAD</td>2170 <td>Initialization of atomic types</td>2171 <td class="na" align="center">N/A</td>2172 </tr>2173 <tr id="423">2174 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_423">423</a></td>2175 <td>C11</td>2176 <td>Defect Report relative to n1570: underspecification for qualified rvalues</td>2177 <td class="partial" align="center">2178 <details><summary>Partial</summary>2179 Clang properly handles dropping qualifiers from cast operations, but2180 does not yet handle dropping qualifiers from the function return type.2181 </details>2182 </td>2183 </tr>2184 <tr id="424">2185 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_424">424</a></td>2186 <td>Dup</td>2187 <td>Underspecification of tss_t</td>2188 <td class="na" align="center">Duplicate of <a href="#416">416</a></td>2189 </tr>2190 <tr id="425">2191 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_425">425</a></td>2192 <td>NAD</td>2193 <td>No specification for the access to variables with temporary lifetime</td>2194 <td class="full" align="center">Yes</td>2195 </tr>2196 <tr id="426">2197 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_426">426</a></td>2198 <td>C11</td>2199 <td>G.5.1: -yv and -x/v are ambiguous</td>2200 <td class="na" align="center">N/A</td>2201 </tr>2202 <tr id="427">2203 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_427">427</a></td>2204 <td>NAD</td>2205 <td>Function Parameter and Return Value Assignments</td>2206 <td class="unknown" align="center">Unknown</td>2207 </tr>2208 <tr id="428">2209 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_428">428</a></td>2210 <td>C11</td>2211 <td>Runtime-constraint issue with sprintf family of routines in Annex K</td>2212 <td class="na" align="center">N/A</td>2213 </tr>2214 <tr id="429">2215 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_429">429</a></td>2216 <td>C11</td>2217 <td>Should gets_s discard next input line when (s == NULL) ?</td>2218 <td class="na" align="center">N/A</td>2219 </tr>2220 <tr id="430">2221 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_430">430</a></td>2222 <td>C11</td>2223 <td>getenv_s, maxsize should be allowed to be zero</td>2224 <td class="na" align="center">N/A</td>2225 </tr>2226 <tr id="431">2227 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_431">431</a></td>2228 <td>C11</td>2229 <td>atomic_compare_exchange: What does it mean to say two structs compare equal?</td>2230 <td class="unknown" align="center">Unknown</td>2231 </tr>2232 <tr id="432">2233 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_432">432</a></td>2234 <td>C11</td>2235 <td>Possible defect report: Is 0.0 required to be a representable value?</td>2236 <td class="full" align="center">Yes</td>2237 </tr>2238 <tr id="433">2239 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_433">433</a></td>2240 <td>C11</td>2241 <td>Issue with constraints for wide character function arguments involving RSIZE_MAX</td>2242 <td class="na" align="center">N/A</td>2243 </tr>2244 <tr id="434">2245 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_434">434</a></td>2246 <td>C11</td>2247 <td>Possible defect report: Missing constraint w.r.t. Atomic</td>2248 <td class="full" align="center">Yes</td>2249 </tr>2250 <tr id="435">2251 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_435">435</a></td>2252 <td>NAD</td>2253 <td>Possible defect report: Missing constraint w.r.t. Imaginary</td>2254 <td class="full" align="center">Yes</td>2255 </tr>2256 <tr id="436">2257 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_436">436</a></td>2258 <td>C11</td>2259 <td>Request for interpretation of C11 6.8.5#6</td>2260 <td class="full" align="center">Yes</td>2261 </tr>2262 <tr id="437">2263 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_437">437</a></td>2264 <td>C11</td>2265 <td>clock overflow problems</td>2266 <td class="na" align="center">N/A</td>2267 </tr>2268 <tr id="438">2269 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_438">438</a></td>2270 <td>C11</td>2271 <td>ungetc / ungetwc and file position after discarding push back problems</td>2272 <td class="na" align="center">N/A</td>2273 </tr>2274 <tr id="439">2275 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_439">439</a></td>2276 <td>C11</td>2277 <td>Issues with the definition of "full expression"</td>2278 <td class="unknown" align="center">Unknown</td>2279 </tr>2280 <tr id="440">2281 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_440">440</a></td>2282 <td>NAD</td>2283 <td>Floating-point issues in C11 from PDTS 18661-1 UK review, Issue 1</td>2284 <td class="unknown" align="center">Unknown</td>2285 </tr>2286 <tr id="441">2287 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_441">441</a></td>2288 <td>C11</td>2289 <td>Floating-point issues in C11 from PDTS 18661-1 UK review, Issue 2</td>2290 <td class="na" align="center">N/A</td>2291 </tr>2292 <tr id="442">2293 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_442">442</a></td>2294 <td>NAD</td>2295 <td>Floating-point issues in C11 from PDTS 18661-1 UK review, Issue 3</td>2296 <td class="unknown" align="center">Unknown</td>2297 </tr>2298 <tr id="443">2299 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_443">443</a></td>2300 <td>NAD</td>2301 <td>Floating-point issues in C11 from PDTS 18661-1 UK review, Issue 4</td>2302 <td class="unknown" align="center">Unknown</td>2303 </tr>2304 <tr id="444">2305 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_444">444</a></td>2306 <td>C11</td>2307 <td>Issues with alignment in C11, part 1</td>2308 <td class="partial" align="center">2309 <details><summary>Partial</summary>2310 Clang rejects use of an alignment specifier in a compound literal expression.2311 </details>2312 </td>2313 </tr>2314 <tr id="445">2315 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_445">445</a></td>2316 <td>C11</td>2317 <td>Issues with alignment in C11, part 2</td>2318 <td class="unknown" align="center">Unknown</td>2319 </tr>2320 <tr id="446">2321 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_446">446</a></td>2322 <td>NAD</td>2323 <td>Use byte instead of character for memcmp, memcpy</td>2324 <td class="na" align="center">N/A</td>2325 </tr>2326 <tr id="447">2327 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_447">447</a></td>2328 <td>C11</td>2329 <td>Boolean from complex</td>2330 <td class="full" align="center">Yes</td>2331 </tr>2332 <tr id="448">2333 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_448">448</a></td>2334 <td>C11</td>2335 <td>What are the semantics of a # non-directive?</td>2336 <td class="full" align="center">Yes</td>2337 </tr>2338 <tr id="449">2339 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_449">449</a></td>2340 <td>NAD</td>2341 <td>What is the value of TSS_DTOR_ITERATIONS for implementations with no maximum?</td>2342 <td class="na" align="center">N/A</td>2343 </tr>2344 <tr id="450">2345 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_450">450</a></td>2346 <td>C11</td>2347 <td>tmpnam_s clears s[0] when maxsize > RSIZE_MAX</td>2348 <td class="na" align="center">N/A</td>2349 </tr>2350 <tr id="451">2351 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_451">451</a></td>2352 <td>NAD</td>2353 <td>Instability of uninitialized automatic variables</td>2354 <td class="unknown" align="center">Unknown</td>2355 </tr>2356 <tr id="452">2357 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_452">452</a></td>2358 <td>C11</td>2359 <td>Effective Type in Loop Invariant</td>2360 <td class="unknown" align="center">Unknown</td>2361 </tr>2362 <tr id="453">2363 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_453">453</a></td>2364 <td>C11</td>2365 <td>Atomic flag type and operations</td>2366 <td class="na" align="center">N/A</td>2367 </tr>2368 <tr id="454">2369 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_454">454</a></td>2370 <td>NAD</td>2371 <td>ATOMIC_VAR_INIT (issues 3 and 4)</td>2372 <td class="full" align="center">Yes</td>2373 </tr>2374 <tr id="455">2375 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_455">455</a></td>2376 <td>NAD</td>2377 <td>ATOMIC_VAR_INIT issue 5</td>2378 <td class="full" align="center">Yes</td>2379 </tr>2380 <tr id="456">2381 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_456">456</a></td>2382 <td>Dup</td>2383 <td>Compile time definition of UINTN_C(value)</td>2384 <td class="partial" align="center">Duplicate of <a href="#209">209</a></td>2385 </tr>2386 <tr id="457">2387 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_457">457</a></td>2388 <td>C11</td>2389 <td>The ctime_s function in Annex K defined incorrectly</td>2390 <td class="na" align="center">N/A</td>2391 </tr>2392 <tr id="458">2393 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_458">458</a></td>2394 <td>C11</td>2395 <td>ATOMIC_XXX_LOCK_FREE macros not constant expressions</td>2396 <td class="na" align="center">N/A</td>2397 </tr>2398 <tr id="459">2399 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_459">459</a></td>2400 <td>C11</td>2401 <td>atomic_load missing const qualifier</td>2402 <td class="full" align="center">Yes</td>2403 </tr>2404 <tr id="460">2405 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_460">460</a></td>2406 <td>C11</td>2407 <td>aligned_alloc underspecified</td>2408 <td class="na" align="center">N/A</td>2409 </tr>2410 <tr id="461">2411 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_461">461</a></td>2412 <td>NAD</td>2413 <td>Problems with references to objects in signal handlers</td>2414 <td class="na" align="center">N/A</td>2415 </tr>2416 <tr id="462">2417 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_462">462</a></td>2418 <td>C11</td>2419 <td>Clarifying objects accessed in signal handlers</td>2420 <td class="na" align="center">N/A</td>2421 </tr>2422 <tr id="463">2423 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_463">463</a></td>2424 <td>NAD</td>2425 <td>Left-shifting into the sign bit</td>2426 <td class="full" align="center">Yes</td>2427 </tr>2428 <tr id="464">2429 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_464">464</a></td>2430 <td>C11</td>2431 <td>Clarifying the Behavior of the #line Directive</td>2432 <td class="full" align="center">Yes</td>2433 </tr>2434 <tr id="465">2435 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_465">465</a></td>2436 <td>C11</td>2437 <td>Fixing an inconsistency in atomic_is_lock_free</td>2438 <td class="unknown" align="center">Unknown</td>2439 </tr>2440 <tr id="466">2441 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_466">466</a></td>2442 <td>NAD</td>2443 <td>Scope of a for loop control declaration</td>2444 <td class="full" align="center">Yes</td>2445 </tr>2446 <tr id="467">2447 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_467">467</a></td>2448 <td>C11</td>2449 <td>Maximum representable finite description vs math</td>2450 <td class="unknown" align="center">Unknown</td>2451 </tr>2452 <tr id="468">2453 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_468">468</a></td>2454 <td>C11</td>2455 <td>strncpy_s clobbers buffer past null</td>2456 <td class="na" align="center">N/A</td>2457 </tr>2458 <tr id="469">2459 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_469">469</a></td>2460 <td>NAD</td>2461 <td>Lock ownership vs. thread termination</td>2462 <td class="na" align="center">N/A</td>2463 </tr>2464 <tr id="470">2465 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_470">470</a></td>2466 <td>C11</td>2467 <td>mtx_trylock should be allowed to fail spuriously</td>2468 <td class="na" align="center">N/A</td>2469 </tr>2470 <tr id="471">2471 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_471">471</a></td>2472 <td>C11</td>2473 <td>Complex math functions cacosh and ctanh</td>2474 <td class="na" align="center">N/A</td>2475 </tr>2476 <tr id="472">2477 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_472">472</a></td>2478 <td>C11</td>2479 <td>Introduction to complex arithmetic in 7.3.1p3 wrong due to CMPLX</td>2480 <td class="na" align="center">N/A</td>2481 </tr>2482 <tr id="473">2483 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_473">473</a></td>2484 <td>C11</td>2485 <td>"A range error occurs if x is too large." is misleading</td>2486 <td class="na" align="center">N/A</td>2487 </tr>2488 <tr id="474">2489 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_474">474</a></td>2490 <td>NAD</td>2491 <td>NOTE 1 Clarification for atomic_compare_exchange</td>2492 <td class="na" align="center">N/A</td>2493 </tr>2494 <tr id="475">2495 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_475">475</a></td>2496 <td>C11</td>2497 <td>Misleading Atomic library references to atomic types</td>2498 <td class="full" align="center">Yes</td>2499 </tr>2500 <tr id="476">2501 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_476">476</a></td>2502 <td>C11</td>2503 <td>volatile semantics for lvalues</td>2504 <td class="unknown" align="center">Unknown</td>2505 </tr>2506 <tr id="477">2507 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_477">477</a></td>2508 <td>C11</td>2509 <td>nan should take a string argument</td>2510 <td class="na" align="center">N/A</td>2511 </tr>2512 <tr id="478">2513 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_478">478</a></td>2514 <td>NAD</td>2515 <td>Valid uses of the main function</td>2516 <td class="full" align="center">Yes</td>2517 </tr>2518 <tr id="479">2519 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_479">479</a></td>2520 <td>Dup</td>2521 <td>Unclear specification of mtx_trylock on non-recursive muteness</td>2522 <td class="na" align="center">Duplicate of <a href="#269">269</a></td>2523 </tr>2524 <tr id="480">2525 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_480">480</a></td>2526 <td>C11</td>2527 <td>cnd_wait and cnd_timewait should allow spurious wake-ups</td>2528 <td class="na" align="center">N/A</td>2529 </tr>2530 <tr id="481">2531 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_481">481</a></td>2532 <td>C11</td>2533 <td>Controlling expression of _Generic primary expression</td>2534 <td class="full" align="center">Clang 3.8</td>2535 </tr>2536 <tr id="482">2537 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_482">482</a></td>2538 <td>NAD</td>2539 <td>Macro invocation split over many files</td>2540 <td class="unknown" align="center">Unknown</td>2541 </tr>2542 <tr id="483">2543 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_483">483</a></td>2544 <td>NAD</td>2545 <td>__LINE__ and __FILE__ in macro replacement list</td>2546 <td class="full" align="center">Yes</td>2547 </tr>2548 <tr id="484">2549 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_484">484</a></td>2550 <td>NAD</td>2551 <td>invalid characters in strcoll()</td>2552 <td class="na" align="center">N/A</td>2553 </tr>2554 <tr id="485">2555 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_485">485</a></td>2556 <td>C11</td>2557 <td>Problem with the specification of ATOMIC_VAR_INIT</td>2558 <td class="full" align="center">Yes</td>2559 </tr>2560 <tr id="486">2561 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_486">486</a></td>2562 <td>NAD</td>2563 <td>Inconsistent specification for arithmetic on atomic objects</td>2564 <td class="unknown" align="center">Unknown</td>2565 </tr>2566 <tr id="487">2567 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_487">487</a></td>2568 <td>C11</td>2569 <td>timespec vs. tm</td>2570 <td class="na" align="center">N/A</td>2571 </tr>2572 <tr id="488">2573 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_488">488</a></td>2574 <td>C11</td>2575 <td>c16rtomb() on wide characters encoded as multiple char16_t</td>2576 <td class="na" align="center">N/A</td>2577 </tr>2578 <tr id="489">2579 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_489">489</a></td>2580 <td>NAD</td>2581 <td>Integer Constant Expression</td>2582 <td class="partial" align="center">2583 <details><summary>Partial</summary>2584 Clang inconsistently diagnoses folding a constan expression into an ICE2585 as an extension.2586 </details>2587 </td>2588 </tr>2589 <tr id="490">2590 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_490">490</a></td>2591 <td>NAD</td>2592 <td>Unwritten Assumptions About if-then</td>2593 <td class="full" align="center">Yes</td>2594 </tr>2595 <tr id="491">2596 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_491">491</a></td>2597 <td>C11</td>2598 <td>Concern with Keywords that Match Reserved Identifiers</td>2599 <td class="partial" align="center">2600 <details><summary>Partial</summary>2601 Clang issues a reserved identifier diagnostic when the identifier leads2602 with an underscore followed by a capital letter or double underscores,2603 even if the identifier is used for a macro definition.2604 </details>2605 </td>2606 </tr>2607 <tr id="492">2608 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_492">492</a></td>2609 <td>NAD</td>2610 <td>Named Child struct-union with no Member</td>2611 <td class="full" align="center">Clang 3.6</td>2612 </tr>2613 <tr id="493">2614 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_493">493</a></td>2615 <td>Dup</td>2616 <td>Mutex Initialization Underspecified</td>2617 <td class="na" align="center">Duplicate of <a href="#469">469</a></td>2618 </tr>2619 <tr id="494">2620 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_494">494</a></td>2621 <td>C11</td>2622 <td>Part 1: Alignment specifier expression evaluation</td>2623 <td class="full" align="center">Yes</td>2624 </tr>2625 <tr class="open" id="495">2626 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_495">495</a></td>2627 <td>C11</td>2628 <td>Part 2: Atomic specifier expression evaluation</td>2629 <td align="center">Not resolved</td>2630 </tr>2631 <tr id="496">2632 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_496">496</a></td>2633 <td>NAD</td>2634 <td>offsetof questions</td>2635 <td class="full" align="center">Yes</td>2636 </tr>2637 <tr id="497">2638 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_497">497</a></td>2639 <td>C11</td>2640 <td>"white-space character" defined in two places</td>2641 <td class="na" align="center">N/A</td>2642 </tr>2643 <tr id="498">2644 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_498">498</a></td>2645 <td>C11</td>2646 <td>mblen, mbtowc, and wctomb thread-safety</td>2647 <td class="na" align="center">N/A</td>2648 </tr>2649 <tr id="499">2650 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_499">499</a></td>2651 <td>C17</td>2652 <td>Anonymous structure in union behavior</td>2653 <td class="full" align="center">Yes</td>2654 </tr>2655 <tr id="500">2656 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_500">500</a></td>2657 <td>C17</td>2658 <td>Ambiguous specification for FLT_EVAL_METHOD</td>2659 <td class="unknown" align="center">Unknown</td>2660 </tr>2661 <tr id="501">2662 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_501">501</a></td>2663 <td>C17</td>2664 <td>Can DECIMAL_DIG be larger than necessary?</td>2665 <td class="na" align="center">N/A</td>2666 </tr>2667 <tr id="502">2668 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_502">502</a></td>2669 <td>NAD</td>2670 <td>Flexible array member in an anonymous struct</td>2671 <td class="full" align="center">Yes</td>2672 </tr>2673 <tr id="503">2674 <td><a href="https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2396.htm#dr_503">503</a></td>2675 <td>NAD</td>2676 <td>Hexadecimal floating-point and strtod</td>2677 <td class="na" align="center">N/A</td>2678 </tr>2679 2680 2681</table>2682 2683</div>2684</body>2685</html>2686 2687