libcxx/test/std/input.output/stream.buffers/streambuf/streambuf.members/streambuf.locales/locales.pass.cpp

   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 // REQUIRES: locale.en_US.UTF-8
  10 // REQUIRES: locale.fr_FR.UTF-8
  11
  12 // <streambuf>
  13
  14 // template <class charT, class traits = char_traits<charT> >
  15 // class basic_streambuf;
  16
  17 // locale pubimbue(const locale& loc);
  18 // locale getloc() const;
  19
  20 #include <streambuf>
  21 #include <cassert>
  22
  23 #include "test_macros.h"
  24 #include "platform_support.h" // locale name macros
  25
  26 template <class CharT>
  27 struct test
  28     : public std::basic_streambuf<CharT>
  29 {
  30     test() {}
  31
  32     void imbue(const std::locale&)
  33     {
  34         assert(this->getloc().name() == LOCALE_en_US_UTF_8);
  35     }
  36 };
  37
  38 int main(int, char**)
  39 {
  40     {
  41         test<char> t;
  42         assert(t.getloc().name() == "C");
  43     }
  44     std::locale::global(std::locale(LOCALE_en_US_UTF_8));
  45     {
  46         test<char> t;
  47         assert(t.getloc().name() == LOCALE_en_US_UTF_8);
  48         assert(t.pubimbue(std::locale(LOCALE_fr_FR_UTF_8)).name() ==
  49                LOCALE_en_US_UTF_8);
  50         assert(t.getloc().name() == LOCALE_fr_FR_UTF_8);
  51     }
  52
  53   return 0;
  54 }