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 // mblen was added in Android API 26. 12 // TODO: Switch from UNSUPPORTED to XFAIL once the Android CI Docker sysroot is 13 // updated. 14 // UNSUPPORTED: LIBCXX-ANDROID-FIXME && target={{.+}}-android{{(eabi)?(21|22|23|24|25)}} 15 16 #include <cstdlib> 17 #include <cassert> 18 #include <type_traits> 19 #include <utility> 20 21 #include "test_macros.h" 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 template <class T, class = decltype(std::abs(std::declval<T>()))> 53 std::true_type has_abs_imp(int); 54 template <class T> 55 std::false_type has_abs_imp(...); 56 57 template <class T> 58 struct has_abs : decltype(has_abs_imp<T>(0)) {}; 59 60 void test_abs() { 61 TEST_DIAGNOSTIC_PUSH 62 TEST_CLANG_DIAGNOSTIC_IGNORED("-Wabsolute-value") 63 static_assert((std::is_same<decltype(std::abs((float)0)), float>::value), ""); 64 static_assert((std::is_same<decltype(std::abs((double)0)), double>::value), ""); 65 static_assert( 66 (std::is_same<decltype(std::abs((long double)0)), long double>::value), ""); 67 static_assert((std::is_same<decltype(std::abs((int)0)), int>::value), ""); 68 static_assert((std::is_same<decltype(std::abs((long)0)), long>::value), ""); 69 static_assert((std::is_same<decltype(std::abs((long long)0)), long long>::value), 70 ""); 71 static_assert((std::is_same<decltype(std::abs((unsigned char)0)), int>::value), 72 ""); 73 static_assert((std::is_same<decltype(std::abs((unsigned short)0)), int>::value), 74 ""); 75 static_assert((std::is_same<decltype(std::abs((signed char)0)), int>::value), 76 ""); 77 static_assert((std::is_same<decltype(std::abs((short)0)), int>::value), 78 ""); 79 static_assert((std::is_same<decltype(std::abs((unsigned char)0)), int>::value), 80 ""); 81 static_assert((std::is_same<decltype(std::abs((char)0)), int>::value), 82 ""); 83 84 static_assert(!has_abs<unsigned>::value, ""); 85 static_assert(!has_abs<unsigned long>::value, ""); 86 static_assert(!has_abs<unsigned long long>::value, ""); 87 static_assert(!has_abs<std::size_t>::value, ""); 88 89 TEST_DIAGNOSTIC_POP 90 91 assert(std::abs(-1.) == 1); 92 } 93 94 int main(int, char**) 95 { 96 std::size_t s = 0; 97 ((void)s); 98 static_assert((std::is_same<std::size_t, decltype(sizeof(int))>::value), ""); 99 test_div_struct<std::div_t, int>(); 100 test_div_struct<std::ldiv_t, long>(); 101 test_div_struct<std::lldiv_t, long long>(); 102 char** endptr = 0; 103 static_assert((std::is_same<decltype(std::atof("")), double>::value), ""); 104 static_assert((std::is_same<decltype(std::atoi("")), int>::value), ""); 105 static_assert((std::is_same<decltype(std::atol("")), long>::value), ""); 106 static_assert((std::is_same<decltype(std::atoll("")), long long>::value), ""); 107 static_assert((std::is_same<decltype(std::getenv("")), char*>::value), ""); 108 static_assert((std::is_same<decltype(std::strtod("", endptr)), double>::value), ""); 109 static_assert((std::is_same<decltype(std::strtof("", endptr)), float>::value), ""); 110 static_assert((std::is_same<decltype(std::strtold("", endptr)), long double>::value), ""); 111 static_assert((std::is_same<decltype(std::strtol("", endptr,0)), long>::value), ""); 112 static_assert((std::is_same<decltype(std::strtoll("", endptr,0)), long long>::value), ""); 113 static_assert((std::is_same<decltype(std::strtoul("", endptr,0)), unsigned long>::value), ""); 114 static_assert((std::is_same<decltype(std::strtoull("", endptr,0)), unsigned long long>::value), ""); 115 static_assert((std::is_same<decltype(std::rand()), int>::value), ""); 116 static_assert((std::is_same<decltype(std::srand(0)), void>::value), ""); 117 118 // std::aligned_alloc tested in cstdlib.aligned_alloc.compile.pass.cpp 119 120 void* pv = 0; 121 void (*handler)() = 0; 122 int (*comp)(void const*, void const*) = 0; 123 static_assert((std::is_same<decltype(std::calloc(0,0)), void*>::value), ""); 124 static_assert((std::is_same<decltype(std::free(0)), void>::value), ""); 125 static_assert((std::is_same<decltype(std::malloc(0)), void*>::value), ""); 126 static_assert((std::is_same<decltype(std::realloc(0,0)), void*>::value), ""); 127 static_assert((std::is_same<decltype(std::abort()), void>::value), ""); 128 static_assert((std::is_same<decltype(std::atexit(handler)), int>::value), ""); 129 static_assert((std::is_same<decltype(std::exit(0)), void>::value), ""); 130 static_assert((std::is_same<decltype(std::_Exit(0)), void>::value), ""); 131 static_assert((std::is_same<decltype(std::getenv("")), char*>::value), ""); 132 static_assert((std::is_same<decltype(std::system("")), int>::value), ""); 133 static_assert((std::is_same<decltype(std::bsearch(pv,pv,0,0,comp)), void*>::value), ""); 134 static_assert((std::is_same<decltype(std::qsort(pv,0,0,comp)), void>::value), ""); 135 static_assert((std::is_same<decltype(std::abs(0)), int>::value), ""); 136 static_assert((std::is_same<decltype(std::abs((long)0)), long>::value), ""); 137 static_assert((std::is_same<decltype(std::abs((long long)0)), long long>::value), ""); 138 static_assert((std::is_same<decltype(std::labs((long)0)), long>::value), ""); 139 static_assert((std::is_same<decltype(std::llabs((long long)0)), long long>::value), ""); 140 static_assert((std::is_same<decltype(std::div(0,0)), std::div_t>::value), ""); 141 static_assert((std::is_same<decltype(std::div(0L,0L)), std::ldiv_t>::value), ""); 142 static_assert((std::is_same<decltype(std::div(0LL,0LL)), std::lldiv_t>::value), ""); 143 static_assert((std::is_same<decltype(std::ldiv(0L,0L)), std::ldiv_t>::value), ""); 144 static_assert((std::is_same<decltype(std::lldiv(0LL,0LL)), std::lldiv_t>::value), ""); 145 #ifndef TEST_HAS_NO_WIDE_CHARACTERS 146 wchar_t* pw = 0; 147 const wchar_t* pwc = 0; 148 char* pc = 0; 149 static_assert((std::is_same<decltype(std::mblen("",0)), int>::value), ""); 150 static_assert((std::is_same<decltype(std::mbtowc(pw,"",0)), int>::value), ""); 151 static_assert((std::is_same<decltype(std::wctomb(pc,L' ')), int>::value), ""); 152 static_assert((std::is_same<decltype(std::mbstowcs(pw,"",0)), std::size_t>::value), ""); 153 static_assert((std::is_same<decltype(std::wcstombs(pc,pwc,0)), std::size_t>::value), ""); 154 #endif 155 156 test_abs(); 157 158 return 0; 159 } 160