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 #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