| Dan Albert | 287553d | 2017-02-16 10:47:51 -0800 | [diff] [blame] | 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 | |
| 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 | // These tests fail on systems whose C library doesn't provide a correct overload |
| 52 | // set for strchr, strpbrk, strrchr, strstr, and memchr, unless the compiler is |
| 53 | // a suitably recent version of Clang. |
| 54 | #if !defined(__APPLE__) || defined(_LIBCPP_PREFERRED_OVERLOAD) |
| 55 | static_assert((std::is_same<decltype(strchr(cpc, 0)), const char*>::value), ""); |
| 56 | static_assert((std::is_same<decltype(strpbrk(cpc, cpc)), const char*>::value), ""); |
| 57 | static_assert((std::is_same<decltype(strrchr(cpc, 0)), const char*>::value), ""); |
| 58 | static_assert((std::is_same<decltype(strstr(cpc, cpc)), const char*>::value), ""); |
| 59 | static_assert((std::is_same<decltype(memchr(vpc, 0, s)), const void*>::value), ""); |
| 60 | #endif |
| 61 | } |