xref: /llvm-project/libcxx/test/support/platform_support.h (revision 38d25aecdf72177d72ed40f3dfbbf1d3c726dc8f)
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 // Define a bunch of macros that can be used in the tests instead of
10 //  implementation defined assumptions:
11 //   - locale names
12 //   - floating point number string output
13 
14 #ifndef PLATFORM_SUPPORT_H
15 #define PLATFORM_SUPPORT_H
16 
17 // locale names
18 #define LOCALE_en_US           "en_US"
19 #define LOCALE_en_US_UTF_8     "en_US.UTF-8"
20 #define LOCALE_fr_FR_UTF_8     "fr_FR.UTF-8"
21 #ifdef __linux__
22 #    define LOCALE_fr_CA_ISO8859_1 "fr_CA.ISO-8859-1"
23 #    define LOCALE_cs_CZ_ISO8859_2 "cs_CZ.ISO-8859-2"
24 #elif defined(_WIN32)
25 #    define LOCALE_fr_CA_ISO8859_1 "fr-CA"
26 #    define LOCALE_cs_CZ_ISO8859_2 "cs-CZ"
27 #else
28 #    define LOCALE_fr_CA_ISO8859_1 "fr_CA.ISO8859-1"
29 #    define LOCALE_cs_CZ_ISO8859_2 "cs_CZ.ISO8859-2"
30 #endif
31 #define LOCALE_ru_RU_UTF_8     "ru_RU.UTF-8"
32 #define LOCALE_zh_CN_UTF_8     "zh_CN.UTF-8"
33 
34 #include <stdio.h>
35 #include <stdlib.h>
36 #include <codecvt>
37 #include <locale>
38 #include <string>
39 #if defined(_WIN32)
40 #   include <io.h> // _mktemp_s
41 #else
42 #   include <unistd.h> // close
43 #endif
44 
45 #if defined(_NEWLIB_VERSION) && defined(__STRICT_ANSI__)
46 // Newlib provides this, but in the header it's under __STRICT_ANSI__
47 extern "C" {
48   int mkstemp(char*);
49 }
50 #endif
51 
52 inline
53 std::string get_temp_file_name()
54 {
55 #if defined(_WIN32)
56     char Name[] = "libcxx.XXXXXX";
57     if (_mktemp_s(Name, sizeof(Name)) != 0) abort();
58     return Name;
59 #else
60     std::string Name;
61     int FD = -1;
62     do {
63         Name = "libcxx.XXXXXX";
64         FD = mkstemp(&Name[0]);
65         if (FD == -1 && errno == EINVAL) {
66             perror("mkstemp");
67             abort();
68         }
69     } while (FD == -1);
70     close(FD);
71     return Name;
72 #endif
73 }
74 
75 #ifdef _LIBCPP_HAS_OPEN_WITH_WCHAR
76 inline
77 std::wstring get_wide_temp_file_name()
78 {
79     return std::wstring_convert<std::codecvt_utf8_utf16<wchar_t> >().from_bytes(
80         get_temp_file_name());
81 }
82 #endif // _LIBCPP_HAS_OPEN_WITH_WCHAR
83 
84 #if defined(_CS_GNU_LIBC_VERSION)
85 inline bool glibc_version_less_than(char const* version) {
86   std::string test_version = std::string("glibc ") + version;
87 
88   size_t n = confstr(_CS_GNU_LIBC_VERSION, nullptr, (size_t)0);
89   char *current_version = new char[n];
90   confstr(_CS_GNU_LIBC_VERSION, current_version, n);
91 
92   bool result = strverscmp(current_version, test_version.c_str()) < 0;
93   delete[] current_version;
94   return result;
95 }
96 #endif // _CS_GNU_LIBC_VERSION
97 
98 #endif // PLATFORM_SUPPORT_H
99