1bb2328fd3
* Implement "P2441R2 `views::join_with`" (https://wg21.link/P2441R2), closes #105185 * Implement LWG4074 (https://wg21.link/LWG4074), closes #105346 * Complete implementation of "P2711R1 Making multi-param constructors of views explicit" (https://wg21.link/P2711R1), closes #105252 * Complete implementation of "P2770R0 Stashing stashing iterators for proper flattening" (https://wg21.link/P2770R0), closes #105250
43 lines
1015 B
C++
43 lines
1015 B
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// REQUIRES: std-at-least-c++23
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// <ranges>
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// [Example 1:
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// vector<string> vs = {"the", "quick", "brown", "fox"};
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// for (char c : vs | views::join_with('-')) {
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// cout << c;
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// }
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// // The above prints the-quick-brown-fox
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// - end example]
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#include <ranges>
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#include <cassert>
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#include <string>
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#include <vector>
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constexpr bool test() {
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std::vector<std::string> vs = {"the", "quick", "brown", "fox"};
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std::string result;
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for (char c : vs | std::views::join_with('-')) {
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result += c;
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}
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return result == "the-quick-brown-fox";
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}
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int main(int, char**) {
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assert(test());
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static_assert(test());
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return 0;
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}
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