cwchar.pass.cpp (6654B)
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 // <cwchar> 11 12 #include <cwchar> 13 #include <ctime> 14 #include <cstdarg> 15 #include <type_traits> 16 17 #include "test_macros.h" 18 19 #ifndef NULL 20 #error NULL not defined 21 #endif 22 23 #ifndef WCHAR_MAX 24 #error WCHAR_MAX not defined 25 #endif 26 27 #ifndef WCHAR_MIN 28 #error WCHAR_MIN not defined 29 #endif 30 31 #ifndef WEOF 32 #error WEOF not defined 33 #endif 34 35 int main() 36 { 37 std::mbstate_t mb = {}; 38 std::size_t s = 0; 39 std::tm *tm = 0; 40 std::wint_t w = 0; 41 ::FILE* fp = 0; 42 std::va_list va; 43 44 char* ns = 0; 45 wchar_t* ws = 0; 46 47 ((void)mb); // Prevent unused warning 48 ((void)s); // Prevent unused warning 49 ((void)tm); // Prevent unused warning 50 ((void)w); // Prevent unused warning 51 ((void)fp); // Prevent unused warning 52 ((void)va); // Prevent unused warning 53 ((void)ns); // Prevent unused warning 54 ((void)ws); // Prevent unused warning 55 56 ASSERT_SAME_TYPE(int, decltype(std::fwprintf(fp, L""))); 57 ASSERT_SAME_TYPE(int, decltype(std::fwscanf(fp, L""))); 58 ASSERT_SAME_TYPE(int, decltype(std::swprintf(ws, s, L""))); 59 ASSERT_SAME_TYPE(int, decltype(std::swscanf(L"", L""))); 60 ASSERT_SAME_TYPE(int, decltype(std::vfwprintf(fp, L"", va))); 61 ASSERT_SAME_TYPE(int, decltype(std::vfwscanf(fp, L"", va))); 62 ASSERT_SAME_TYPE(int, decltype(std::vswprintf(ws, s, L"", va))); 63 ASSERT_SAME_TYPE(int, decltype(std::vswscanf(L"", L"", va))); 64 ASSERT_SAME_TYPE(std::wint_t, decltype(std::fgetwc(fp))); 65 ASSERT_SAME_TYPE(wchar_t*, decltype(std::fgetws(ws, 0, fp))); 66 ASSERT_SAME_TYPE(std::wint_t, decltype(std::fputwc(L' ', fp))); 67 ASSERT_SAME_TYPE(int, decltype(std::fputws(L"", fp))); 68 ASSERT_SAME_TYPE(int, decltype(std::fwide(fp, 0))); 69 ASSERT_SAME_TYPE(std::wint_t, decltype(std::getwc(fp))); 70 ASSERT_SAME_TYPE(std::wint_t, decltype(std::putwc(L' ', fp))); 71 ASSERT_SAME_TYPE(std::wint_t, decltype(std::ungetwc(L' ', fp))); 72 ASSERT_SAME_TYPE(double, decltype(std::wcstod(L"", (wchar_t**)0))); 73 ASSERT_SAME_TYPE(float, decltype(std::wcstof(L"", (wchar_t**)0))); 74 ASSERT_SAME_TYPE(long double, decltype(std::wcstold(L"", (wchar_t**)0))); 75 ASSERT_SAME_TYPE(long, decltype(std::wcstol(L"", (wchar_t**)0, 0))); 76 ASSERT_SAME_TYPE(long long, decltype(std::wcstoll(L"", (wchar_t**)0, 0))); 77 ASSERT_SAME_TYPE(unsigned long, decltype(std::wcstoul(L"", (wchar_t**)0, 0))); 78 ASSERT_SAME_TYPE(unsigned long long, decltype(std::wcstoull(L"", (wchar_t**)0, 0))); 79 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wcscpy(ws, L""))); 80 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wcsncpy(ws, L"", s))); 81 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wcscat(ws, L""))); 82 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wcsncat(ws, L"", s))); 83 ASSERT_SAME_TYPE(int, decltype(std::wcscmp(L"", L""))); 84 ASSERT_SAME_TYPE(int, decltype(std::wcscoll(L"", L""))); 85 ASSERT_SAME_TYPE(int, decltype(std::wcsncmp(L"", L"", s))); 86 ASSERT_SAME_TYPE(std::size_t, decltype(std::wcsxfrm(ws, L"", s))); 87 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wcschr((wchar_t*)0, L' '))); 88 ASSERT_SAME_TYPE(std::size_t, decltype(std::wcscspn(L"", L""))); 89 ASSERT_SAME_TYPE(std::size_t, decltype(std::wcslen(L""))); 90 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wcspbrk((wchar_t*)0, L""))); 91 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wcsrchr((wchar_t*)0, L' '))); 92 ASSERT_SAME_TYPE(std::size_t, decltype(std::wcsspn(L"", L""))); 93 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wcsstr((wchar_t*)0, L""))); 94 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wcstok(ws, L"", (wchar_t**)0))); 95 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wmemchr((wchar_t*)0, L' ', s))); 96 ASSERT_SAME_TYPE(int, decltype(std::wmemcmp(L"", L"", s))); 97 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wmemcpy(ws, L"", s))); 98 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wmemmove(ws, L"", s))); 99 ASSERT_SAME_TYPE(wchar_t*, decltype(std::wmemset(ws, L' ', s))); 100 ASSERT_SAME_TYPE(std::size_t, decltype(std::wcsftime(ws, s, L"", tm))); 101 ASSERT_SAME_TYPE(wint_t, decltype(std::btowc(0))); 102 ASSERT_SAME_TYPE(int, decltype(std::wctob(w))); 103 ASSERT_SAME_TYPE(int, decltype(std::mbsinit(&mb))); 104 ASSERT_SAME_TYPE(std::size_t, decltype(std::mbrlen("", s, &mb))); 105 ASSERT_SAME_TYPE(std::size_t, decltype(std::mbrtowc(ws, "", s, &mb))); 106 ASSERT_SAME_TYPE(std::size_t, decltype(std::wcrtomb(ns, L' ', &mb))); 107 ASSERT_SAME_TYPE(std::size_t, decltype(std::mbsrtowcs(ws, (const char**)0, s, &mb))); 108 ASSERT_SAME_TYPE(std::size_t, decltype(std::wcsrtombs(ns, (const wchar_t**)0, s, &mb))); 109 110 // These tests fail on systems whose C library doesn't provide a correct overload 111 // set for wcschr, wcspbrk, wcsrchr, wcsstr, and wmemchr, unless the compiler is 112 // a suitably recent version of Clang. 113 #if !defined(__APPLE__) || defined(_LIBCPP_PREFERRED_OVERLOAD) 114 ASSERT_SAME_TYPE(const wchar_t*, decltype(std::wcschr((const wchar_t*)0, L' '))); 115 ASSERT_SAME_TYPE(const wchar_t*, decltype(std::wcspbrk((const wchar_t*)0, L""))); 116 ASSERT_SAME_TYPE(const wchar_t*, decltype(std::wcsrchr((const wchar_t*)0, L' '))); 117 ASSERT_SAME_TYPE(const wchar_t*, decltype(std::wcsstr((const wchar_t*)0, L""))); 118 ASSERT_SAME_TYPE(const wchar_t*, decltype(std::wmemchr((const wchar_t*)0, L' ', s))); 119 #endif 120 121 #ifndef _LIBCPP_HAS_NO_STDIN 122 ASSERT_SAME_TYPE(std::wint_t, decltype(std::getwchar())); 123 ASSERT_SAME_TYPE(int, decltype(std::vwscanf(L"", va))); 124 ASSERT_SAME_TYPE(int, decltype(std::wscanf(L""))); 125 #endif 126 127 #ifndef _LIBCPP_HAS_NO_STDOUT 128 ASSERT_SAME_TYPE(std::wint_t, decltype(std::putwchar(L' '))); 129 ASSERT_SAME_TYPE(int, decltype(std::vwprintf(L"", va))); 130 ASSERT_SAME_TYPE(int, decltype(std::wprintf(L""))); 131 #endif 132 }