1//===----------------------------------------------------------------------===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is dual licensed under the MIT and the University of Illinois Open 6// Source Licenses. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9 10// test <cstdlib> 11 12#include <cstdlib> 13#include <type_traits> 14#include <cassert> 15 16// As of 1/10/2015 clang emits a -Wnonnull warnings even if the warning occurs 17// in an unevaluated context. For this reason we manually suppress the warning. 18#if defined(__clang__) 19#pragma clang diagnostic ignored "-Wnonnull" 20#endif 21 22#ifndef EXIT_FAILURE 23#error EXIT_FAILURE not defined 24#endif 25 26#ifndef EXIT_SUCCESS 27#error EXIT_SUCCESS not defined 28#endif 29 30#ifndef MB_CUR_MAX 31#error MB_CUR_MAX not defined 32#endif 33 34#ifndef NULL 35#error NULL not defined 36#endif 37 38#ifndef RAND_MAX 39#error RAND_MAX not defined 40#endif 41 42template <class TestType, class IntType> 43void test_div_struct() { 44 TestType obj; 45 static_assert(sizeof(obj) >= sizeof(IntType) * 2, ""); // >= to account for alignment. 46 static_assert((std::is_same<decltype(obj.quot), IntType>::value), ""); 47 static_assert((std::is_same<decltype(obj.rem), IntType>::value), ""); 48 ((void) obj); 49}; 50 51int main() 52{ 53 std::size_t s = 0; 54 ((void)s); 55 static_assert((std::is_same<std::size_t, decltype(sizeof(int))>::value), ""); 56 test_div_struct<std::div_t, int>(); 57 test_div_struct<std::ldiv_t, long>(); 58 test_div_struct<std::lldiv_t, long long>(); 59 char** endptr = 0; 60 static_assert((std::is_same<decltype(std::atof("")), double>::value), ""); 61 static_assert((std::is_same<decltype(std::atoi("")), int>::value), ""); 62 static_assert((std::is_same<decltype(std::atol("")), long>::value), ""); 63 static_assert((std::is_same<decltype(std::atoll("")), long long>::value), ""); 64 static_assert((std::is_same<decltype(std::getenv("")), char*>::value), ""); 65 static_assert((std::is_same<decltype(std::strtod("", endptr)), double>::value), ""); 66 static_assert((std::is_same<decltype(std::strtof("", endptr)), float>::value), ""); 67 static_assert((std::is_same<decltype(std::strtold("", endptr)), long double>::value), ""); 68 static_assert((std::is_same<decltype(std::strtol("", endptr,0)), long>::value), ""); 69 static_assert((std::is_same<decltype(std::strtoll("", endptr,0)), long long>::value), ""); 70 static_assert((std::is_same<decltype(std::strtoul("", endptr,0)), unsigned long>::value), ""); 71 static_assert((std::is_same<decltype(std::strtoull("", endptr,0)), unsigned long long>::value), ""); 72 static_assert((std::is_same<decltype(std::rand()), int>::value), ""); 73 static_assert((std::is_same<decltype(std::srand(0)), void>::value), ""); 74 static_assert((std::is_same<decltype(std::calloc(0,0)), void*>::value), ""); 75 static_assert((std::is_same<decltype(std::free(0)), void>::value), ""); 76 static_assert((std::is_same<decltype(std::malloc(0)), void*>::value), ""); 77 static_assert((std::is_same<decltype(std::realloc(0,0)), void*>::value), ""); 78 static_assert((std::is_same<decltype(std::abort()), void>::value), ""); 79 static_assert((std::is_same<decltype(std::atexit(0)), int>::value), ""); 80 static_assert((std::is_same<decltype(std::exit(0)), void>::value), ""); 81 static_assert((std::is_same<decltype(std::_Exit(0)), void>::value), ""); 82 static_assert((std::is_same<decltype(std::getenv("")), char*>::value), ""); 83 static_assert((std::is_same<decltype(std::system("")), int>::value), ""); 84 static_assert((std::is_same<decltype(std::bsearch(0,0,0,0,0)), void*>::value), ""); 85 static_assert((std::is_same<decltype(std::qsort(0,0,0,0)), void>::value), ""); 86 static_assert((std::is_same<decltype(std::abs(0)), int>::value), ""); 87 static_assert((std::is_same<decltype(std::abs((long)0)), long>::value), ""); 88 static_assert((std::is_same<decltype(std::abs((long long)0)), long long>::value), ""); 89 static_assert((std::is_same<decltype(std::labs((long)0)), long>::value), ""); 90 static_assert((std::is_same<decltype(std::llabs((long long)0)), long long>::value), ""); 91 static_assert((std::is_same<decltype(std::div(0,0)), std::div_t>::value), ""); 92 static_assert((std::is_same<decltype(std::div(0L,0L)), std::ldiv_t>::value), ""); 93 static_assert((std::is_same<decltype(std::div(0LL,0LL)), std::lldiv_t>::value), ""); 94 static_assert((std::is_same<decltype(std::ldiv(0L,0L)), std::ldiv_t>::value), ""); 95 static_assert((std::is_same<decltype(std::lldiv(0LL,0LL)), std::lldiv_t>::value), ""); 96 wchar_t* pw = 0; 97 const wchar_t* pwc = 0; 98 char* pc = 0; 99 static_assert((std::is_same<decltype(std::mblen("",0)), int>::value), ""); 100 static_assert((std::is_same<decltype(std::mbtowc(pw,"",0)), int>::value), ""); 101 static_assert((std::is_same<decltype(std::wctomb(pc,L' ')), int>::value), ""); 102 static_assert((std::is_same<decltype(std::mbstowcs(pw,"",0)), std::size_t>::value), ""); 103 static_assert((std::is_same<decltype(std::wcstombs(pc,pwc,0)), std::size_t>::value), ""); 104} 105