1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // XFAIL: no-wide-characters
10
11 // <wchar.h>
12
13 #include <wchar.h>
14 #include <stdarg.h>
15 #include <stdio.h>
16 #include <type_traits>
17
18 #include "test_macros.h"
19
20 #ifndef NULL
21 #error NULL not defined
22 #endif
23
24 #ifndef WCHAR_MAX
25 #error WCHAR_MAX not defined
26 #endif
27
28 #ifndef WCHAR_MIN
29 #error WCHAR_MIN not defined
30 #endif
31
32 #ifndef WEOF
33 #error WEOF not defined
34 #endif
35
main(int,char **)36 int main(int, char**)
37 {
38 // mbstate_t comes from the underlying C library; it is defined (in C99) as:
39 // a complete object type other than an array type that can hold the conversion
40 // state information necessary to convert between sequences of multibyte
41 // characters and wide characters
42 mbstate_t mb = {};
43 size_t s = 0;
44 tm *tm = 0;
45 wint_t w = 0;
46 ::FILE* fp = 0;
47 ::va_list va;
48 char* ns = 0;
49 wchar_t* ws = 0;
50 const wchar_t* cws = 0;
51 wchar_t** wsp = 0;
52 ((void)mb); // Prevent unused warning
53 ((void)s); // Prevent unused warning
54 ((void)tm); // Prevent unused warning
55 ((void)w); // Prevent unused warning
56 ((void)fp); // Prevent unused warning
57 ((void)va); // Prevent unused warning
58 ((void)ns); // Prevent unused warning
59 ((void)ws); // Prevent unused warning
60 ((void)cws); // Prevent unused warning
61 ((void)wsp); // Prevent unused warning
62 ASSERT_SAME_TYPE(int, decltype(fwprintf(fp, L"")));
63 ASSERT_SAME_TYPE(int, decltype(fwscanf(fp, L"")));
64 ASSERT_SAME_TYPE(int, decltype(swprintf(ws, s, L"")));
65 ASSERT_SAME_TYPE(int, decltype(swscanf(L"", L"")));
66 ASSERT_SAME_TYPE(int, decltype(vfwprintf(fp, L"", va)));
67 ASSERT_SAME_TYPE(int, decltype(vfwscanf(fp, L"", va)));
68 ASSERT_SAME_TYPE(int, decltype(vswprintf(ws, s, L"", va)));
69 ASSERT_SAME_TYPE(int, decltype(vswscanf(L"", L"", va)));
70 ASSERT_SAME_TYPE(wint_t, decltype(fgetwc(fp)));
71 ASSERT_SAME_TYPE(wchar_t*, decltype(fgetws(ws, 0, fp)));
72 ASSERT_SAME_TYPE(wint_t, decltype(fputwc(L' ', fp)));
73 ASSERT_SAME_TYPE(int, decltype(fputws(L"", fp)));
74 ASSERT_SAME_TYPE(int, decltype(fwide(fp, 0)));
75 ASSERT_SAME_TYPE(wint_t, decltype(getwc(fp)));
76 ASSERT_SAME_TYPE(wint_t, decltype(putwc(L' ', fp)));
77 ASSERT_SAME_TYPE(wint_t, decltype(ungetwc(L' ', fp)));
78 ASSERT_SAME_TYPE(double, decltype(wcstod(L"", wsp)));
79 ASSERT_SAME_TYPE(float, decltype(wcstof(L"", wsp)));
80 ASSERT_SAME_TYPE(long double, decltype(wcstold(L"", wsp)));
81 ASSERT_SAME_TYPE(long, decltype(wcstol(L"", wsp, 0)));
82 ASSERT_SAME_TYPE(long long, decltype(wcstoll(L"", wsp, 0)));
83 ASSERT_SAME_TYPE(unsigned long, decltype(wcstoul(L"", wsp, 0)));
84 ASSERT_SAME_TYPE(unsigned long long, decltype(wcstoull(L"", wsp, 0)));
85 ASSERT_SAME_TYPE(wchar_t*, decltype(wcscpy(ws, L"")));
86 ASSERT_SAME_TYPE(wchar_t*, decltype(wcsncpy(ws, L"", s)));
87 ASSERT_SAME_TYPE(wchar_t*, decltype(wcscat(ws, L"")));
88 ASSERT_SAME_TYPE(wchar_t*, decltype(wcsncat(ws, L"", s)));
89 ASSERT_SAME_TYPE(int, decltype(wcscmp(L"", L"")));
90 ASSERT_SAME_TYPE(int, decltype(wcscoll(L"", L"")));
91 ASSERT_SAME_TYPE(int, decltype(wcsncmp(L"", L"", s)));
92 ASSERT_SAME_TYPE(size_t, decltype(wcsxfrm(ws, L"", s)));
93 ASSERT_SAME_TYPE(wchar_t*, decltype(wcschr(ws, L' ')));
94 ASSERT_SAME_TYPE(const wchar_t*, decltype(wcschr(cws, L' ')));
95 ASSERT_SAME_TYPE(size_t, decltype(wcscspn(L"", L"")));
96 ASSERT_SAME_TYPE(size_t, decltype(wcslen(L"")));
97 ASSERT_SAME_TYPE(wchar_t*, decltype(wcspbrk(ws, L"")));
98 ASSERT_SAME_TYPE(const wchar_t*, decltype(wcspbrk(cws, L"")));
99 ASSERT_SAME_TYPE(wchar_t*, decltype(wcsrchr(ws, L' ')));
100 ASSERT_SAME_TYPE(const wchar_t*, decltype(wcsrchr(cws, L' ')));
101 ASSERT_SAME_TYPE(size_t, decltype(wcsspn(L"", L"")));
102 ASSERT_SAME_TYPE(wchar_t*, decltype(wcsstr(ws, L"")));
103 ASSERT_SAME_TYPE(const wchar_t*, decltype(wcsstr(cws, L"")));
104 ASSERT_SAME_TYPE(wchar_t*, decltype(wcstok(ws, L"", wsp)));
105 ASSERT_SAME_TYPE(wchar_t*, decltype(wmemchr(ws, L' ', s)));
106 ASSERT_SAME_TYPE(const wchar_t*, decltype(wmemchr(cws, L' ', s)));
107 ASSERT_SAME_TYPE(int, decltype(wmemcmp(L"", L"", s)));
108 ASSERT_SAME_TYPE(wchar_t*, decltype(wmemcpy(ws, L"", s)));
109 ASSERT_SAME_TYPE(wchar_t*, decltype(wmemmove(ws, L"", s)));
110 ASSERT_SAME_TYPE(wchar_t*, decltype(wmemset(ws, L' ', s)));
111 ASSERT_SAME_TYPE(size_t, decltype(wcsftime(ws, s, L"", tm)));
112 ASSERT_SAME_TYPE(wint_t, decltype(btowc(0)));
113 ASSERT_SAME_TYPE(int, decltype(wctob(w)));
114 ASSERT_SAME_TYPE(int, decltype(mbsinit(&mb)));
115 ASSERT_SAME_TYPE(size_t, decltype(mbrlen("", s, &mb)));
116 ASSERT_SAME_TYPE(size_t, decltype(mbrtowc(ws, "", s, &mb)));
117 ASSERT_SAME_TYPE(size_t, decltype(wcrtomb(ns, L' ', &mb)));
118 ASSERT_SAME_TYPE(size_t, decltype(mbsrtowcs(ws, (const char**)0, s, &mb)));
119 ASSERT_SAME_TYPE(size_t, decltype(wcsrtombs(ns, (const wchar_t**)0, s, &mb)));
120 ASSERT_SAME_TYPE(wint_t, decltype(getwchar()));
121 ASSERT_SAME_TYPE(int, decltype(vwscanf(L"", va)));
122 ASSERT_SAME_TYPE(int, decltype(wscanf(L"")));
123 ASSERT_SAME_TYPE(wint_t, decltype(putwchar(L' ')));
124 ASSERT_SAME_TYPE(int, decltype(vwprintf(L"", va)));
125 ASSERT_SAME_TYPE(int, decltype(wprintf(L"")));
126
127 return 0;
128 }
129