libcxx/test/std/input.output/string.streams/stringbuf/stringbuf.cons/alloc.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 // UNSUPPORTED: c++03, c++11, c++14, c++17
  10
  11 // <sstream>
  12
  13 // template <class charT, class traits = char_traits<charT>, class Allocator = allocator<charT>>
  14 // class basic_stringbuf
  15
  16 // explicit basic_stringbuf(const Allocator& a)
  17 //     : basic_stringbuf(ios_base::in | ios_base::out, a) {}
  18
  19 #include <sstream>
  20 #include <cassert>
  21
  22 #include "test_allocator.h"
  23 #include "test_macros.h"
  24
  25 template <class CharT>
  26 static void test() {
  27   const test_allocator<CharT> a(1);
  28   const std::basic_stringbuf<CharT, std::char_traits<CharT>, test_allocator<CharT>> buf(a);
  29   assert(buf.get_allocator() == a);
  30   assert(buf.view().empty());
  31 }
  32
  33 int main(int, char**) {
  34   test<char>();
  35 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  36   test<wchar_t>();
  37 #endif
  38   return 0;
  39 }