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 // test <cstdio>
10
11 #include <cstdio>
12 #include <type_traits>
13
14 #include "test_macros.h"
15
16 #ifndef BUFSIZ
17 #error BUFSIZ not defined
18 #endif
19
20 #ifndef EOF
21 #error EOF not defined
22 #endif
23
24 #ifndef FILENAME_MAX
25 #error FILENAME_MAX not defined
26 #endif
27
28 #ifndef FOPEN_MAX
29 #error FOPEN_MAX not defined
30 #endif
31
32 #ifndef L_tmpnam
33 #error L_tmpnam not defined
34 #endif
35
36 #ifndef NULL
37 #error NULL not defined
38 #endif
39
40 #ifndef SEEK_CUR
41 #error SEEK_CUR not defined
42 #endif
43
44 #ifndef SEEK_END
45 #error SEEK_END not defined
46 #endif
47
48 #ifndef SEEK_SET
49 #error SEEK_SET not defined
50 #endif
51
52 #ifndef TMP_MAX
53 #error TMP_MAX not defined
54 #endif
55
56 #ifndef _IOFBF
57 #error _IOFBF not defined
58 #endif
59
60 #ifndef _IOLBF
61 #error _IOLBF not defined
62 #endif
63
64 #ifndef _IONBF
65 #error _IONBF not defined
66 #endif
67
68 #ifndef stderr
69 #error stderr not defined
70 #endif
71
72 #ifndef stdin
73 #error stdin not defined
74 #endif
75
76 #ifndef stdout
77 #error stdout not defined
78 #endif
79
80 #include <cstdarg>
81
82 #if defined(__clang__)
83 #pragma clang diagnostic push
84 #pragma clang diagnostic ignored "-Wformat-zero-length"
85 #pragma clang diagnostic ignored "-Wdeprecated-declarations"
86 #endif
87
main(int,char **)88 int main(int, char**)
89 {
90 std::FILE* fp = 0;
91 std::fpos_t fpos = std::fpos_t();
92 std::size_t s = 0;
93 char* cp = 0;
94 std::va_list va;
95 ((void)fp); // Prevent unused warning
96 ((void)fpos); // Prevent unused warning
97 ((void)s); // Prevent unused warning
98 ((void)cp); // Prevent unused warning
99 ((void)va); // Prevent unused warning
100 static_assert((std::is_same<decltype(std::fclose(fp)), int>::value), "");
101 static_assert((std::is_same<decltype(std::fflush(fp)), int>::value), "");
102 static_assert((std::is_same<decltype(std::setbuf(fp,cp)), void>::value), "");
103 static_assert((std::is_same<decltype(std::vfprintf(fp,"",va)), int>::value), "");
104 static_assert((std::is_same<decltype(std::fprintf(fp," ")), int>::value), "");
105 static_assert((std::is_same<decltype(std::fscanf(fp,"")), int>::value), "");
106 static_assert((std::is_same<decltype(std::snprintf(cp,0," ")), int>::value), "");
107 static_assert((std::is_same<decltype(std::sprintf(cp," ")), int>::value), "");
108 static_assert((std::is_same<decltype(std::sscanf("","")), int>::value), "");
109 static_assert((std::is_same<decltype(std::vfprintf(fp,"",va)), int>::value), "");
110 static_assert((std::is_same<decltype(std::vfscanf(fp,"",va)), int>::value), "");
111 static_assert((std::is_same<decltype(std::vsnprintf(cp,0," ",va)), int>::value), "");
112 static_assert((std::is_same<decltype(std::vsprintf(cp," ",va)), int>::value), "");
113 static_assert((std::is_same<decltype(std::vsscanf("","",va)), int>::value), "");
114 static_assert((std::is_same<decltype(std::fgetc(fp)), int>::value), "");
115 static_assert((std::is_same<decltype(std::fgets(cp,0,fp)), char*>::value), "");
116 static_assert((std::is_same<decltype(std::fputc(0,fp)), int>::value), "");
117 static_assert((std::is_same<decltype(std::fputs("",fp)), int>::value), "");
118 static_assert((std::is_same<decltype(std::getc(fp)), int>::value), "");
119 static_assert((std::is_same<decltype(std::putc(0,fp)), int>::value), "");
120 static_assert((std::is_same<decltype(std::ungetc(0,fp)), int>::value), "");
121 static_assert((std::is_same<decltype(std::fread((void*)0,0,0,fp)), std::size_t>::value), "");
122 static_assert((std::is_same<decltype(std::fwrite((const void*)0,0,0,fp)), std::size_t>::value), "");
123 static_assert((std::is_same<decltype(std::fgetpos(fp, &fpos)), int>::value), "");
124 static_assert((std::is_same<decltype(std::fseek(fp, 0,0)), int>::value), "");
125 static_assert((std::is_same<decltype(std::fsetpos(fp, &fpos)), int>::value), "");
126 static_assert((std::is_same<decltype(std::ftell(fp)), long>::value), "");
127 static_assert((std::is_same<decltype(std::rewind(fp)), void>::value), "");
128 static_assert((std::is_same<decltype(std::clearerr(fp)), void>::value), "");
129 static_assert((std::is_same<decltype(std::feof(fp)), int>::value), "");
130 static_assert((std::is_same<decltype(std::ferror(fp)), int>::value), "");
131 static_assert((std::is_same<decltype(std::perror("")), void>::value), "");
132
133 #ifndef _LIBCPP_HAS_NO_GLOBAL_FILESYSTEM_NAMESPACE
134 static_assert((std::is_same<decltype(std::fopen("", "")), std::FILE*>::value), "");
135 static_assert((std::is_same<decltype(std::freopen("", "", fp)), std::FILE*>::value), "");
136 static_assert((std::is_same<decltype(std::remove("")), int>::value), "");
137 static_assert((std::is_same<decltype(std::rename("","")), int>::value), "");
138 static_assert((std::is_same<decltype(std::tmpfile()), std::FILE*>::value), "");
139 static_assert((std::is_same<decltype(std::tmpnam(cp)), char*>::value), "");
140 #endif
141
142 #ifndef _LIBCPP_HAS_NO_STDIN
143 static_assert((std::is_same<decltype(std::getchar()), int>::value), "");
144 #if TEST_STD_VER <= 11
145 static_assert((std::is_same<decltype(std::gets(cp)), char*>::value), "");
146 #endif
147 static_assert((std::is_same<decltype(std::scanf(" ")), int>::value), "");
148 static_assert((std::is_same<decltype(std::vscanf("",va)), int>::value), "");
149 #endif
150
151 #ifndef _LIBCPP_HAS_NO_STDOUT
152 static_assert((std::is_same<decltype(std::printf(" ")), int>::value), "");
153 static_assert((std::is_same<decltype(std::putchar(0)), int>::value), "");
154 static_assert((std::is_same<decltype(std::puts("")), int>::value), "");
155 static_assert((std::is_same<decltype(std::vprintf(" ",va)), int>::value), "");
156 #endif
157
158 return 0;
159 }
160