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 #ifndef EXIT_FAILURE
22 #error EXIT_FAILURE not defined
23 #endif
24 
25 #ifndef EXIT_SUCCESS
26 #error EXIT_SUCCESS not defined
27 #endif
28 
29 #ifndef MB_CUR_MAX
30 #error MB_CUR_MAX not defined
31 #endif
32 
33 #ifndef NULL
34 #error NULL not defined
35 #endif
36 
37 #ifndef RAND_MAX
38 #error RAND_MAX not defined
39 #endif
40 
41 int main()
42 {
43     size_t s = 0; ((void)s);
44     div_t d; ((void)d);
45     ldiv_t ld; ((void)ld);
46     lldiv_t lld; ((void)lld);
47     char** endptr = 0;
48     static_assert((std::is_same<decltype(atof("")), double>::value), "");
49     static_assert((std::is_same<decltype(atoi("")), int>::value), "");
50     static_assert((std::is_same<decltype(atol("")), long>::value), "");
51     static_assert((std::is_same<decltype(atoll("")), long long>::value), "");
52     static_assert((std::is_same<decltype(getenv("")), char*>::value), "");
53     static_assert((std::is_same<decltype(strtod("", endptr)), double>::value), "");
54     static_assert((std::is_same<decltype(strtof("", endptr)), float>::value), "");
55     static_assert((std::is_same<decltype(strtold("", endptr)), long double>::value), "");
56     static_assert((std::is_same<decltype(strtol("", endptr,0)), long>::value), "");
57     static_assert((std::is_same<decltype(strtoll("", endptr,0)), long long>::value), "");
58     static_assert((std::is_same<decltype(strtoul("", endptr,0)), unsigned long>::value), "");
59     static_assert((std::is_same<decltype(strtoull("", endptr,0)), unsigned long long>::value), "");
60     static_assert((std::is_same<decltype(rand()), int>::value), "");
61     static_assert((std::is_same<decltype(srand(0)), void>::value), "");
62     static_assert((std::is_same<decltype(calloc(0,0)), void*>::value), "");
63     static_assert((std::is_same<decltype(free(0)), void>::value), "");
64     static_assert((std::is_same<decltype(malloc(0)), void*>::value), "");
65     static_assert((std::is_same<decltype(realloc(0,0)), void*>::value), "");
66     static_assert((std::is_same<decltype(abort()), void>::value), "");
67     static_assert((std::is_same<decltype(atexit(0)), int>::value), "");
68     static_assert((std::is_same<decltype(exit(0)), void>::value), "");
69     static_assert((std::is_same<decltype(_Exit(0)), void>::value), "");
70     static_assert((std::is_same<decltype(getenv("")), char*>::value), "");
71     static_assert((std::is_same<decltype(system("")), int>::value), "");
72     static_assert((std::is_same<decltype(bsearch(0,0,0,0,0)), void*>::value), "");
73     static_assert((std::is_same<decltype(qsort(0,0,0,0)), void>::value), "");
74     static_assert((std::is_same<decltype(abs(0)), int>::value), "");
75     static_assert((std::is_same<decltype(labs((long)0)), long>::value), "");
76     static_assert((std::is_same<decltype(llabs((long long)0)), long long>::value), "");
77     static_assert((std::is_same<decltype(div(0,0)), div_t>::value), "");
78     static_assert((std::is_same<decltype(ldiv(0L,0L)), ldiv_t>::value), "");
79     static_assert((std::is_same<decltype(lldiv(0LL,0LL)), lldiv_t>::value), "");
80     wchar_t* pw = 0;
81     const wchar_t* pwc = 0;
82     char* pc = 0;
83 #ifndef _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
84     static_assert((std::is_same<decltype(mblen("",0)), int>::value), "");
85     static_assert((std::is_same<decltype(mbtowc(pw,"",0)), int>::value), "");
86     static_assert((std::is_same<decltype(wctomb(pc,L' ')), int>::value), "");
87 #endif
88     static_assert((std::is_same<decltype(mbstowcs(pw,"",0)), size_t>::value), "");
89     static_assert((std::is_same<decltype(wcstombs(pc,pwc,0)), size_t>::value), "");
90 }
91