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 #include "test_macros.h"
18
19 // locale names
20 #define LOCALE_en_US "en_US"
21 #define LOCALE_en_US_UTF_8 "en_US.UTF-8"
22 #define LOCALE_fr_FR_UTF_8 "fr_FR.UTF-8"
23 #ifdef __linux__
24 # define LOCALE_fr_CA_ISO8859_1 "fr_CA.ISO-8859-1"
25 # define LOCALE_cs_CZ_ISO8859_2 "cs_CZ.ISO-8859-2"
26 #elif defined(_WIN32)
27 # define LOCALE_fr_CA_ISO8859_1 "fr-CA"
28 # define LOCALE_cs_CZ_ISO8859_2 "cs-CZ"
29 #else
30 # define LOCALE_fr_CA_ISO8859_1 "fr_CA.ISO8859-1"
31 # define LOCALE_cs_CZ_ISO8859_2 "cs_CZ.ISO8859-2"
32 #endif
33 #define LOCALE_ja_JP_UTF_8 "ja_JP.UTF-8"
34 #define LOCALE_ru_RU_UTF_8 "ru_RU.UTF-8"
35 #define LOCALE_zh_CN_UTF_8 "zh_CN.UTF-8"
36
37 #include <stdio.h>
38 #include <stdlib.h>
39 #include <codecvt>
40 #include <locale>
41 #include <string>
42 #if defined(_WIN32)
43 # include <io.h> // _mktemp_s
44 # include <fcntl.h> // _O_EXCL, ...
45 # include <sys/stat.h> // _S_IREAD, ...
46 #else
47 # include <unistd.h> // close
48 #endif
49
50 #if defined(_CS_GNU_LIBC_VERSION)
51 # include <string.h> // strverscmp
52 #endif
53
54 #if defined(_NEWLIB_VERSION) && defined(__STRICT_ANSI__)
55 // Newlib provides this, but in the header it's under __STRICT_ANSI__
56 extern "C" {
57 int mkstemp(char*);
58 }
59 #endif
60
61 inline
get_temp_file_name()62 std::string get_temp_file_name()
63 {
64 #if defined(_WIN32)
65 while (true) {
66 char Name[] = "libcxx.XXXXXX";
67 if (_mktemp_s(Name, sizeof(Name)) != 0) abort();
68 int fd = _open(Name, _O_RDWR | _O_CREAT | _O_EXCL, _S_IREAD | _S_IWRITE);
69 if (fd != -1) {
70 _close(fd);
71 return Name;
72 }
73 if (errno == EEXIST)
74 continue;
75 abort();
76 }
77 #else
78 std::string Name = "libcxx.XXXXXX";
79 int FD = mkstemp(&Name[0]);
80 if (FD == -1) {
81 perror("mkstemp");
82 abort();
83 }
84 close(FD);
85 return Name;
86 #endif
87 }
88
89 _LIBCPP_SUPPRESS_DEPRECATED_PUSH
90 #ifdef _LIBCPP_HAS_OPEN_WITH_WCHAR
91 inline
get_wide_temp_file_name()92 std::wstring get_wide_temp_file_name()
93 {
94 return std::wstring_convert<std::codecvt_utf8_utf16<wchar_t> >().from_bytes(
95 get_temp_file_name());
96 }
97 #endif // _LIBCPP_HAS_OPEN_WITH_WCHAR
98 _LIBCPP_SUPPRESS_DEPRECATED_POP
99
100 #if defined(_CS_GNU_LIBC_VERSION)
glibc_version_less_than(char const * version)101 inline bool glibc_version_less_than(char const* version) {
102 std::string test_version = std::string("glibc ") + version;
103
104 size_t n = confstr(_CS_GNU_LIBC_VERSION, nullptr, (size_t)0);
105 char *current_version = new char[n];
106 confstr(_CS_GNU_LIBC_VERSION, current_version, n);
107
108 bool result = strverscmp(current_version, test_version.c_str()) < 0;
109 delete[] current_version;
110 return result;
111 }
112 #endif // _CS_GNU_LIBC_VERSION
113
114 #endif // PLATFORM_SUPPORT_H
115