libcxx/test/std/input.output/string.streams/istringstream/istringstream.members/str.string-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_istringstream
  15
  16 // template <class SAlloc>
  17 // void str(const basic_string<charT, traits, SAlloc>& s);
  18
  19 #include <sstream>
  20 #include <cassert>
  21
  22 #include "make_string.h"
  23 #include "test_allocator.h"
  24 #include "test_macros.h"
  25
  26 #define STR(S) MAKE_STRING(CharT, S)
  27
  28 template <class CharT>
  29 static void test() {
  30   {
  31     const test_allocator<CharT> a(6);
  32     const std::basic_string<CharT, std::char_traits<CharT>, test_allocator<CharT>> s(STR("testing"), a);
  33     std::basic_istringstream<CharT> ss;
  34     ss.str(s);
  35     assert(ss.str() == STR("testing"));
  36   }
  37 }
  38
  39 int main(int, char**) {
  40   test<char>();
  41 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  42   test<wchar_t>();
  43 #endif
  44   return 0;
  45 }