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 #ifdef _WIN32
19 // WARNING: Windows does not support UTF-8 codepages.
20 // Locales are "converted" using https://docs.moodle.org/dev/Table_of_locales
21 # define LOCALE_en_US "en-US"
22 # define LOCALE_en_US_UTF_8 "en-US"
23 # define LOCALE_cs_CZ_ISO8859_2 "cs-CZ"
24 # define LOCALE_fr_FR_UTF_8 "fr-FR"
25 # define LOCALE_fr_CA_ISO8859_1 "fr-CA"
26 # define LOCALE_ru_RU_UTF_8 "ru-RU"
27 # define LOCALE_zh_CN_UTF_8 "zh-CN"
28 #elif defined(__CloudABI__)
29 // Timezones are integrated into locales through LC_TIMEZONE_MASK on
30 // CloudABI. LC_ALL_MASK can only be used if a timezone has also been
31 // provided. UTC should be all right.
32 # define LOCALE_en_US "en_US"
33 # define LOCALE_en_US_UTF_8 "en_US.UTF-8@UTC"
34 # define LOCALE_fr_FR_UTF_8 "fr_FR.UTF-8@UTC"
35 # define LOCALE_fr_CA_ISO8859_1 "fr_CA.ISO-8859-1@UTC"
36 # define LOCALE_cs_CZ_ISO8859_2 "cs_CZ.ISO-8859-2@UTC"
37 # define LOCALE_ru_RU_UTF_8 "ru_RU.UTF-8@UTC"
38 # define LOCALE_zh_CN_UTF_8 "zh_CN.UTF-8@UTC"
39 #else
40 # define LOCALE_en_US "en_US"
41 # define LOCALE_en_US_UTF_8 "en_US.UTF-8"
42 # define LOCALE_fr_FR_UTF_8 "fr_FR.UTF-8"
43 # ifdef __linux__
44 # define LOCALE_fr_CA_ISO8859_1 "fr_CA.ISO-8859-1"
45 # define LOCALE_cs_CZ_ISO8859_2 "cs_CZ.ISO-8859-2"
46 # else
47 # define LOCALE_fr_CA_ISO8859_1 "fr_CA.ISO8859-1"
48 # define LOCALE_cs_CZ_ISO8859_2 "cs_CZ.ISO8859-2"
49 # endif
50 # define LOCALE_ru_RU_UTF_8 "ru_RU.UTF-8"
51 # define LOCALE_zh_CN_UTF_8 "zh_CN.UTF-8"
52 #endif
53
54 #include <stdio.h>
55 #include <stdlib.h>
56 #include <codecvt>
57 #include <locale>
58 #include <string>
59 #if defined(_WIN32) || defined(__MINGW32__)
60 # include <io.h> // _mktemp_s
61 #else
62 # include <unistd.h> // close
63 #endif
64
65 #if defined(_NEWLIB_VERSION) && defined(__STRICT_ANSI__)
66 // Newlib provides this, but in the header it's under __STRICT_ANSI__
67 extern "C" {
68 int mkstemp(char*);
69 }
70 #endif
71
72 #ifndef __CloudABI__
73 inline
get_temp_file_name()74 std::string get_temp_file_name()
75 {
76 #if defined(__MINGW32__)
77 char Path[MAX_PATH + 1];
78 char FN[MAX_PATH + 1];
79 do { } while (0 == GetTempPath(MAX_PATH+1, Path));
80 do { } while (0 == GetTempFileName(Path, "libcxx", 0, FN));
81 return FN;
82 #elif defined(_WIN32)
83 char Name[] = "libcxx.XXXXXX";
84 if (_mktemp_s(Name, sizeof(Name)) != 0) abort();
85 return Name;
86 #else
87 std::string Name;
88 int FD = -1;
89 do {
90 Name = "libcxx.XXXXXX";
91 FD = mkstemp(&Name[0]);
92 if (FD == -1 && errno == EINVAL) {
93 perror("mkstemp");
94 abort();
95 }
96 } while (FD == -1);
97 close(FD);
98 return Name;
99 #endif
100 }
101
102 #ifdef _LIBCPP_HAS_OPEN_WITH_WCHAR
103 inline
get_wide_temp_file_name()104 std::wstring get_wide_temp_file_name()
105 {
106 return std::wstring_convert<std::codecvt_utf8_utf16<wchar_t> >().from_bytes(
107 get_temp_file_name());
108 }
109 #endif // _LIBCPP_HAS_OPEN_WITH_WCHAR
110
111 #endif // __CloudABI__
112
113 #if defined(_CS_GNU_LIBC_VERSION)
glibc_version_less_than(char const * version)114 inline bool glibc_version_less_than(char const* version) {
115 std::string test_version = std::string("glibc ") + version;
116
117 size_t n = confstr(_CS_GNU_LIBC_VERSION, nullptr, (size_t)0);
118 char *current_version = new char[n];
119 confstr(_CS_GNU_LIBC_VERSION, current_version, n);
120
121 bool result = strverscmp(current_version, test_version.c_str()) < 0;
122 delete[] current_version;
123 return result;
124 }
125 #endif // _CS_GNU_LIBC_VERSION
126
127 #endif // PLATFORM_SUPPORT_H
128