libcxx/test/std/strings/basic.string/string.nonmembers/string.io/get_line_rv.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 // <string>
  10
  11 // template<class charT, class traits, class Allocator>
  12 //   basic_istream<charT,traits>&
  13 //   getline(basic_istream<charT,traits>&& is,
  14 //           basic_string<charT,traits,Allocator>& str);
  15
  16 #include <string>
  17 #include <sstream>
  18 #include <cassert>
  19
  20 #include "test_macros.h"
  21 #include "min_allocator.h"
  22
  23 template <template <class> class Alloc>
  24 void test() {
  25   {
  26     using S = std::basic_string<char, std::char_traits<char>, Alloc<char> >;
  27     S s("initial text");
  28     std::getline(std::istringstream(" abc\n  def\n   ghij"), s);
  29     assert(s == " abc");
  30   }
  31 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
  32   {
  33     using WS = std::basic_string<wchar_t, std::char_traits<wchar_t>, Alloc<wchar_t> >;
  34     WS s(L"initial text");
  35     std::getline(std::wistringstream(L" abc\n  def\n   ghij"), s);
  36     assert(s == L" abc");
  37   }
  38 #endif
  39 }
  40
  41 int main(int, char**) {
  42   test<std::allocator>();
  43   test<min_allocator>();
  44
  45   return 0;
  46 }