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1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// Define a bunch of macros that can be used in the tests instead of10// implementation defined assumptions:11// - locale names12// - floating point number string output13 14#ifndef PLATFORM_SUPPORT_H15#define PLATFORM_SUPPORT_H16 17#include "test_macros.h"18 19// locale names20#define LOCALE_en_US_UTF_8 "en_US.UTF-8"21#define LOCALE_fr_FR_UTF_8 "fr_FR.UTF-8"22#ifdef __linux__23# define LOCALE_fr_CA_ISO8859_1 "fr_CA.ISO-8859-1"24# define LOCALE_cs_CZ_ISO8859_2 "cs_CZ.ISO-8859-2"25#elif defined(_WIN32)26# define LOCALE_fr_CA_ISO8859_1 "fr-CA"27# define LOCALE_cs_CZ_ISO8859_2 "cs-CZ"28#else29# define LOCALE_fr_CA_ISO8859_1 "fr_CA.ISO8859-1"30# define LOCALE_cs_CZ_ISO8859_2 "cs_CZ.ISO8859-2"31#endif32#define LOCALE_ja_JP_UTF_8 "ja_JP.UTF-8"33#define LOCALE_ru_RU_UTF_8 "ru_RU.UTF-8"34#define LOCALE_zh_CN_UTF_8 "zh_CN.UTF-8"35 36#include <stdio.h>37#include <stdlib.h>38#include <string>39#if defined(_WIN32)40# include <io.h> // _mktemp_s41# include <fcntl.h> // _O_EXCL, ...42# include <sys/stat.h> // _S_IREAD, ...43#elif __has_include(<unistd.h>)44# include <unistd.h> // close45#endif46 47#if defined(_CS_GNU_LIBC_VERSION)48# include <string.h> // strverscmp49#endif50 51#if _LIBCPP_LIBC_NEWLIB && defined(__STRICT_ANSI__)52// Newlib provides this, but in the header it's under __STRICT_ANSI__53extern "C" {54 int mkstemp(char*);55}56#endif57 58inline std::string get_temp_file_name() {59#if defined(_WIN32)60 while (true) {61 char Name[] = "libcxx.XXXXXX";62 if (_mktemp_s(Name, sizeof(Name)) != 0)63 abort();64 int fd = _open(Name, _O_RDWR | _O_CREAT | _O_EXCL, _S_IREAD | _S_IWRITE);65 if (fd != -1) {66 _close(fd);67 return Name;68 }69 if (errno == EEXIST)70 continue;71 abort();72 }73#elif !__has_include(<unistd.h>)74 // Without `unistd.h` we cannot guarantee that the file is unused, however we75 // can simply generate a good guess in the temporary folder and create it.76 constexpr char chars[] = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ";77 char Name[] = "/tmp/libcxx.XXXXXX";78 for (std::size_t i = 0; i < sizeof(Name); ++i)79 if (Name[i] == 'X')80 Name[i] = chars[rand() % strlen(chars)];81 FILE* file = fopen(Name, "w");82 if (!file)83 abort();84 if (fclose(file) == EOF)85 abort();86 return std::string(Name);87#else88 std::string Name = "libcxx.XXXXXX";89 int FD = mkstemp(&Name[0]);90 if (FD == -1) {91 perror("mkstemp");92 abort();93 }94 close(FD);95 return Name;96#endif97}98 99#if defined(_CS_GNU_LIBC_VERSION)100inline bool glibc_version_less_than(char const* version) {101 std::string test_version = std::string("glibc ") + version;102 103 std::size_t n = confstr(_CS_GNU_LIBC_VERSION, nullptr, (size_t)0);104 char *current_version = new char[n];105 confstr(_CS_GNU_LIBC_VERSION, current_version, n);106 107 bool result = strverscmp(current_version, test_version.c_str()) < 0;108 delete[] current_version;109 return result;110}111#endif // _CS_GNU_LIBC_VERSION112 113#endif // PLATFORM_SUPPORT_H114