//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// test <stdlib.h>
#include <stdlib.h>
#include <type_traits>
#include <cassert>
#include "test_macros.h"
#ifdef abs
#error abs is defined
#endif
#ifdef labs
#error labs is defined
#endif
#ifdef llabs
#error llabs is defined
#endif
#ifdef div
#error div is defined
#endif
#ifdef ldiv
#error ldiv is defined
#endif
#ifdef lldiv
#error lldiv is defined
#endif
#ifndef EXIT_FAILURE
#error EXIT_FAILURE not defined
#endif
#ifndef EXIT_SUCCESS
#error EXIT_SUCCESS not defined
#endif
#ifndef MB_CUR_MAX
#error MB_CUR_MAX not defined
#endif
#ifndef NULL
#error NULL not defined
#endif
#ifndef RAND_MAX
#error RAND_MAX not defined
#endif
template <class T, class = decltype(::abs(std::declval<T>()))>
std::true_type has_abs_imp(int);
template <class T>
std::false_type has_abs_imp(...);
template <class T>
struct has_abs : decltype(has_abs_imp<T>(0)) {};
void test_abs() {
TEST_DIAGNOSTIC_PUSH
TEST_CLANG_DIAGNOSTIC_IGNORED("-Wabsolute-value")
ASSERT_SAME_TYPE(float, decltype(abs((float)0)));
ASSERT_SAME_TYPE(double, decltype(abs((double)0)));
ASSERT_SAME_TYPE(long double, decltype(abs((long double)0)));
ASSERT_SAME_TYPE(int, decltype(abs((int)0)));
ASSERT_SAME_TYPE(long, decltype(abs((long)0)));
ASSERT_SAME_TYPE(long long, decltype(abs((long long)0)));
ASSERT_SAME_TYPE(int, decltype(abs((unsigned char)0)));
ASSERT_SAME_TYPE(int, decltype(abs((unsigned short)0)));
ASSERT_SAME_TYPE(int, decltype(abs((signed char)0)));
ASSERT_SAME_TYPE(int, decltype(abs((short)0)));
ASSERT_SAME_TYPE(int, decltype(abs((unsigned char)0)));
ASSERT_SAME_TYPE(int, decltype(abs((char)0)));
static_assert(!has_abs<unsigned>::value, "");
static_assert(!has_abs<unsigned long>::value, "");
static_assert(!has_abs<unsigned long long>::value, "");
static_assert(!has_abs<size_t>::value, "");
TEST_DIAGNOSTIC_POP
assert(abs(-1.) == 1);
}
int main(int, char**) {
size_t s = 0; ((void)s);
div_t d; ((void)d);
ldiv_t ld; ((void)ld);
lldiv_t lld; ((void)lld);
char** endptr = 0;
ASSERT_SAME_TYPE(double, decltype(atof("")));
ASSERT_SAME_TYPE(int, decltype(atoi("")));
ASSERT_SAME_TYPE(long, decltype(atol("")));
ASSERT_SAME_TYPE(long long, decltype(atoll("")));
ASSERT_SAME_TYPE(char*, decltype(getenv("")));
ASSERT_SAME_TYPE(double, decltype(strtod("", endptr)));
ASSERT_SAME_TYPE(float, decltype(strtof("", endptr)));
ASSERT_SAME_TYPE(long double, decltype(strtold("", endptr)));
ASSERT_SAME_TYPE(long, decltype(strtol("", endptr,0)));
ASSERT_SAME_TYPE(long long, decltype(strtoll("", endptr,0)));
ASSERT_SAME_TYPE(unsigned long, decltype(strtoul("", endptr,0)));
ASSERT_SAME_TYPE(unsigned long long, decltype(strtoull("", endptr,0)));
ASSERT_SAME_TYPE(int, decltype(rand()));
ASSERT_SAME_TYPE(void, decltype(srand(0)));
// aligned_alloc tested in stdlib_h.aligned_alloc.compile.pass.cpp
void* pv = 0;
void (*handler)() = 0;
int (*comp)(void const*, void const*) = 0;
ASSERT_SAME_TYPE(void*, decltype(calloc(0,0)));
ASSERT_SAME_TYPE(void, decltype(free(0)));
ASSERT_SAME_TYPE(void*, decltype(malloc(0)));
ASSERT_SAME_TYPE(void*, decltype(realloc(0,0)));
ASSERT_SAME_TYPE(void, decltype(abort()));
ASSERT_SAME_TYPE(int, decltype(atexit(handler)));
ASSERT_SAME_TYPE(void, decltype(exit(0)));
ASSERT_SAME_TYPE(void, decltype(_Exit(0)));
ASSERT_SAME_TYPE(char*, decltype(getenv("")));
ASSERT_SAME_TYPE(int, decltype(system("")));
ASSERT_SAME_TYPE(void*, decltype(bsearch(pv,pv,0,0,comp)));
ASSERT_SAME_TYPE(void, decltype(qsort(pv,0,0,comp)));
ASSERT_SAME_TYPE(int, decltype(abs(0)));
ASSERT_SAME_TYPE(long, decltype(labs((long)0)));
ASSERT_SAME_TYPE(long long, decltype(llabs((long long)0)));
ASSERT_SAME_TYPE(div_t, decltype(div(0,0)));
ASSERT_SAME_TYPE(ldiv_t, decltype(ldiv(0L,0L)));
ASSERT_SAME_TYPE(lldiv_t, decltype(lldiv(0LL,0LL)));
#ifndef TEST_HAS_NO_WIDE_CHARACTERS
wchar_t* pw = 0;
const wchar_t* pwc = 0;
char* pc = 0;
ASSERT_SAME_TYPE(int, decltype(mblen("",0)));
ASSERT_SAME_TYPE(int, decltype(mbtowc(pw,"",0)));
ASSERT_SAME_TYPE(int, decltype(wctomb(pc,L' ')));
ASSERT_SAME_TYPE(size_t, decltype(mbstowcs(pw,"",0)));
ASSERT_SAME_TYPE(size_t, decltype(wcstombs(pc,pwc,0)));
#endif
test_abs();
return 0;
}
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