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1// RUN: clang-tidy %s -checks=-*,google-readability-casting -- \2// RUN: -xobjective-c++ -fobjc-abi-version=2 -fobjc-arc | count 03 4// Note: this test expects no diagnostics, but FileCheck cannot handle that,5// hence the use of | count 0.6 7bool g() { return false; }8 9enum Enum { Enum1 };10struct X {};11struct Y : public X {};12 13void f(int a, double b, const char *cpc, const void *cpv, X *pX) {14 15 typedef const char *Typedef1;16 typedef const char *Typedef2;17 Typedef1 t1;18 (Typedef2)t1;19 (const char*)t1;20 (Typedef1)cpc;21 22 typedef char Char;23 char *pc;24 Char *pChar = (Char*)pc;25 26 (Char)*cpc;27 28 (char)*pChar;29 30 (const char*)cpv;31 32 char *pc2 = (char*)(cpc + 33);33 34 const char &crc = *cpc;35 char &rc = (char&)crc;36 37 char &rc2 = (char&)*cpc;38 39 char ** const* const* ppcpcpc;40 char ****ppppc = (char****)ppcpcpc;41 42 char ***pppc = (char***)*(ppcpcpc);43 44 char ***pppc2 = (char***)(*ppcpcpc);45 46 char *pc5 = (char*)(const char*)(cpv);47 48 int b1 = (int)b;49 b1 = (const int&)b;50 51 b1 = (int) b;52 53 b1 = (int) b;54 55 b1 = (int) (b);56 57 b1 = (int) (b);58 59 Y *pB = (Y*)pX;60 Y &rB = (Y&)*pX;61 62 const char *pc3 = (const char*)cpv;63 64 char *pc4 = (char*)cpv;65 66 b1 = (int)Enum1;67 68 Enum e = (Enum)b1;69 70 int b2 = int(b);71 int b3 = static_cast<double>(b);72 int b4 = b;73 double aa = a;74 (void)b2;75 return (void)g();76}77 78template <typename T>79void template_function(T t, int n) {80 int i = (int)t;81}82 83template <typename T>84struct TemplateStruct {85 void f(T t, int n) {86 int k = (int)t;87 }88};89 90void test_templates() {91 template_function(1, 42);92 template_function(1.0, 42);93 TemplateStruct<int>().f(1, 42);94 TemplateStruct<double>().f(1.0, 42);95}96 97extern "C" {98void extern_c_code(const char *cpc) {99 char *pc = (char*)cpc;100}101}102 103#define CAST(type, value) (type)(value)104void macros(double d) {105 int i = CAST(int, d);106}107 108enum E { E1 = 1 };109template <E e>110struct A {111 // Usage of template argument e = E1 is represented as (E)1 in the AST for112 // some reason. We have a special treatment of this case to avoid warnings113 // here.114 static const E ee = e;115};116struct B : public A<E1> {};117 118 119void overloaded_function();120void overloaded_function(int);121 122template<typename Fn>123void g(Fn fn) {124 fn();125}126 127void function_casts() {128 typedef void (*FnPtrVoid)();129 typedef void (&FnRefVoid)();130 typedef void (&FnRefInt)(int);131 132 g((void (*)())overloaded_function);133 g((void (*)())&overloaded_function);134 g((void (&)())overloaded_function);135 136 g((FnPtrVoid)overloaded_function);137 g((FnPtrVoid)&overloaded_function);138 g((FnRefVoid)overloaded_function);139 140 FnPtrVoid fn0 = (void (*)())&overloaded_function;141 FnPtrVoid fn1 = (void (*)())overloaded_function;142 FnPtrVoid fn1a = (FnPtrVoid)overloaded_function;143 FnRefInt fn2 = (void (&)(int))overloaded_function;144 auto fn3 = (void (*)())&overloaded_function;145 auto fn4 = (void (*)())overloaded_function;146 auto fn5 = (void (&)(int))overloaded_function;147 148 void (*fn6)() = (void (*)())&overloaded_function;149 void (*fn7)() = (void (*)())overloaded_function;150 void (*fn8)() = (FnPtrVoid)overloaded_function;151 void (&fn9)(int) = (void (&)(int))overloaded_function;152 153 void (*correct1)() = static_cast<void (*)()>(overloaded_function);154 FnPtrVoid correct2 = static_cast<void (*)()>(&overloaded_function);155 FnRefInt correct3 = static_cast<void (&)(int)>(overloaded_function);156}157 158struct S {159 S(const char *);160};161struct ConvertibleToS {162 operator S() const;163};164struct ConvertibleToSRef {165 operator const S&() const;166};167 168void conversions() {169 //auto s1 = (const S&)"";170 auto s2 = (S)"";171 auto s2a = (struct S)"";172 auto s2b = (const S)"";173 ConvertibleToS c;174 auto s3 = (const S&)c;175 auto s4 = (S)c;176 ConvertibleToSRef cr;177 auto s5 = (const S&)cr;178 auto s6 = (S)cr;179}180