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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // test <cstdlib> 10 11 #include <cstdlib> 12 #include <type_traits> 13 #include <cassert> 14 15 #include "test_macros.h" 16 17 // As of 1/10/2015 clang emits a -Wnonnull warnings even if the warning occurs 18 // in an unevaluated context. For this reason we manually suppress the warning. 19 #if defined(__clang__) 20 #pragma clang diagnostic ignored "-Wnonnull" 21 #endif 22 23 #ifndef EXIT_FAILURE 24 #error EXIT_FAILURE not defined 25 #endif 26 27 #ifndef EXIT_SUCCESS 28 #error EXIT_SUCCESS not defined 29 #endif 30 31 #ifndef MB_CUR_MAX 32 #error MB_CUR_MAX not defined 33 #endif 34 35 #ifndef NULL 36 #error NULL not defined 37 #endif 38 39 #ifndef RAND_MAX 40 #error RAND_MAX not defined 41 #endif 42 43 template <class TestType, class IntType> 44 void test_div_struct() { 45 TestType obj; 46 static_assert(sizeof(obj) >= sizeof(IntType) * 2, ""); // >= to account for alignment. 47 static_assert((std::is_same<decltype(obj.quot), IntType>::value), ""); 48 static_assert((std::is_same<decltype(obj.rem), IntType>::value), ""); 49 ((void) obj); 50 }; 51 52 int main(int, char**) 53 { 54 std::size_t s = 0; 55 ((void)s); 56 static_assert((std::is_same<std::size_t, decltype(sizeof(int))>::value), ""); 57 test_div_struct<std::div_t, int>(); 58 test_div_struct<std::ldiv_t, long>(); 59 test_div_struct<std::lldiv_t, long long>(); 60 char** endptr = 0; 61 static_assert((std::is_same<decltype(std::atof("")), double>::value), ""); 62 static_assert((std::is_same<decltype(std::atoi("")), int>::value), ""); 63 static_assert((std::is_same<decltype(std::atol("")), long>::value), ""); 64 static_assert((std::is_same<decltype(std::atoll("")), long long>::value), ""); 65 static_assert((std::is_same<decltype(std::getenv("")), char*>::value), ""); 66 static_assert((std::is_same<decltype(std::strtod("", endptr)), double>::value), ""); 67 static_assert((std::is_same<decltype(std::strtof("", endptr)), float>::value), ""); 68 static_assert((std::is_same<decltype(std::strtold("", endptr)), long double>::value), ""); 69 static_assert((std::is_same<decltype(std::strtol("", endptr,0)), long>::value), ""); 70 static_assert((std::is_same<decltype(std::strtoll("", endptr,0)), long long>::value), ""); 71 static_assert((std::is_same<decltype(std::strtoul("", endptr,0)), unsigned long>::value), ""); 72 static_assert((std::is_same<decltype(std::strtoull("", endptr,0)), unsigned long long>::value), ""); 73 static_assert((std::is_same<decltype(std::rand()), int>::value), ""); 74 static_assert((std::is_same<decltype(std::srand(0)), void>::value), ""); 75 76 // Microsoft does not implement aligned_alloc in their C library 77 #if TEST_STD_VER > 14 && defined(TEST_HAS_C11_FEATURES) && !defined(_WIN32) 78 static_assert((std::is_same<decltype(aligned_alloc(0,0)), void*>::value), ""); 79 #endif 80 81 static_assert((std::is_same<decltype(std::calloc(0,0)), void*>::value), ""); 82 static_assert((std::is_same<decltype(std::free(0)), void>::value), ""); 83 static_assert((std::is_same<decltype(std::malloc(0)), void*>::value), ""); 84 static_assert((std::is_same<decltype(std::realloc(0,0)), void*>::value), ""); 85 static_assert((std::is_same<decltype(std::abort()), void>::value), ""); 86 static_assert((std::is_same<decltype(std::atexit(0)), int>::value), ""); 87 static_assert((std::is_same<decltype(std::exit(0)), void>::value), ""); 88 static_assert((std::is_same<decltype(std::_Exit(0)), void>::value), ""); 89 static_assert((std::is_same<decltype(std::getenv("")), char*>::value), ""); 90 static_assert((std::is_same<decltype(std::system("")), int>::value), ""); 91 static_assert((std::is_same<decltype(std::bsearch(0,0,0,0,0)), void*>::value), ""); 92 static_assert((std::is_same<decltype(std::qsort(0,0,0,0)), void>::value), ""); 93 static_assert((std::is_same<decltype(std::abs(0)), int>::value), ""); 94 static_assert((std::is_same<decltype(std::abs((long)0)), long>::value), ""); 95 static_assert((std::is_same<decltype(std::abs((long long)0)), long long>::value), ""); 96 static_assert((std::is_same<decltype(std::labs((long)0)), long>::value), ""); 97 static_assert((std::is_same<decltype(std::llabs((long long)0)), long long>::value), ""); 98 static_assert((std::is_same<decltype(std::div(0,0)), std::div_t>::value), ""); 99 static_assert((std::is_same<decltype(std::div(0L,0L)), std::ldiv_t>::value), ""); 100 static_assert((std::is_same<decltype(std::div(0LL,0LL)), std::lldiv_t>::value), ""); 101 static_assert((std::is_same<decltype(std::ldiv(0L,0L)), std::ldiv_t>::value), ""); 102 static_assert((std::is_same<decltype(std::lldiv(0LL,0LL)), std::lldiv_t>::value), ""); 103 wchar_t* pw = 0; 104 const wchar_t* pwc = 0; 105 char* pc = 0; 106 static_assert((std::is_same<decltype(std::mblen("",0)), int>::value), ""); 107 static_assert((std::is_same<decltype(std::mbtowc(pw,"",0)), int>::value), ""); 108 static_assert((std::is_same<decltype(std::wctomb(pc,L' ')), int>::value), ""); 109 static_assert((std::is_same<decltype(std::mbstowcs(pw,"",0)), std::size_t>::value), ""); 110 static_assert((std::is_same<decltype(std::wcstombs(pc,pwc,0)), std::size_t>::value), ""); 111 112 return 0; 113 } 114