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