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