libcxx/test/support/platform_support.h

   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
  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
 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)
 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