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: no-localization
10 // UNSUPPORTED: c++03, c++11, c++14, c++17
11
12 // Some basic examples of how istream_view might be used in the wild. This is a general
13 // collection of sample algorithms and functions that try to mock general usage of
14 // this view.
15
16 #include <algorithm>
17 #include <cassert>
18 #include <ranges>
19 #include <sstream>
20
21 #include "test_macros.h"
22 #include "utils.h"
23
24 template <class CharT>
test()25 void test() {
26 auto ints = make_string_stream<CharT>("0 1 2 3 4");
27 auto oss = std::basic_ostringstream<CharT>{};
28 auto delimiter = make_string<CharT>("-");
29 std::ranges::copy(
30 std::ranges::basic_istream_view<int, CharT>(ints), std::ostream_iterator<int, CharT>{oss, delimiter.c_str()});
31 auto expected = make_string<CharT>("0-1-2-3-4-");
32 assert(oss.str() == expected);
33 }
34
main(int,char **)35 int main(int, char**) {
36 test<char>();
37 #ifndef TEST_HAS_NO_WIDE_CHARACTERS
38 test<wchar_t>();
39 #endif
40
41 return 0;
42 }
43