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 | // Some basic examples of how take_while_view might be used in the wild. This is a general |
12 | // collection of sample algorithms and functions that try to mock general usage of |
13 | // this view. |
14 | |
15 | #include <algorithm> |
16 | #include <cassert> |
17 | #include <ranges> |
18 | |
19 | int main(int, char**) { |
20 | { |
21 | auto input = {0, 1, 2, 3, 4, 5, 6, 5, 4, 3, 2, 1, 0}; |
22 | auto small = [](const auto x) noexcept { return x < 5; }; |
23 | auto small_ints = input | std::views::take_while(small); |
24 | auto expected = {0, 1, 2, 3, 4}; |
25 | assert(std::ranges::equal(small_ints, expected)); |
26 | } |
27 | return 0; |
28 | } |
29 | |