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 // <string.h>
11
12 #include <string.h>
13 #include <type_traits>
14
15 #ifndef NULL
16 #error NULL not defined
17 #endif
18
main()19 int main()
20 {
21 size_t s = 0;
22 void* vp = 0;
23 const void* vpc = 0;
24 char* cp = 0;
25 const char* cpc = 0;
26 static_assert((std::is_same<decltype(memcpy(vp, vpc, s)), void*>::value), "");
27 static_assert((std::is_same<decltype(memmove(vp, vpc, s)), void*>::value), "");
28 static_assert((std::is_same<decltype(strcpy(cp, cpc)), char*>::value), "");
29 static_assert((std::is_same<decltype(strncpy(cp, cpc, s)), char*>::value), "");
30 static_assert((std::is_same<decltype(strcat(cp, cpc)), char*>::value), "");
31 static_assert((std::is_same<decltype(strncat(cp, cpc, s)), char*>::value), "");
32 static_assert((std::is_same<decltype(memcmp(vpc, vpc, s)), int>::value), "");
33 static_assert((std::is_same<decltype(strcmp(cpc, cpc)), int>::value), "");
34 static_assert((std::is_same<decltype(strncmp(cpc, cpc, s)), int>::value), "");
35 static_assert((std::is_same<decltype(strcoll(cpc, cpc)), int>::value), "");
36 static_assert((std::is_same<decltype(strxfrm(cp, cpc, s)), size_t>::value), "");
37 static_assert((std::is_same<decltype(memchr(vp, 0, s)), void*>::value), "");
38 static_assert((std::is_same<decltype(strchr(cp, 0)), char*>::value), "");
39 static_assert((std::is_same<decltype(strcspn(cpc, cpc)), size_t>::value), "");
40 static_assert((std::is_same<decltype(strpbrk(cp, cpc)), char*>::value), "");
41 static_assert((std::is_same<decltype(strrchr(cp, 0)), char*>::value), "");
42 static_assert((std::is_same<decltype(strspn(cpc, cpc)), size_t>::value), "");
43 static_assert((std::is_same<decltype(strstr(cp, cpc)), char*>::value), "");
44 #ifndef _LIBCPP_HAS_NO_THREAD_UNSAFE_C_FUNCTIONS
45 static_assert((std::is_same<decltype(strtok(cp, cpc)), char*>::value), "");
46 #endif
47 static_assert((std::is_same<decltype(memset(vp, 0, s)), void*>::value), "");
48 static_assert((std::is_same<decltype(strerror(0)), char*>::value), "");
49 static_assert((std::is_same<decltype(strlen(cpc)), size_t>::value), "");
50 }
51