================ @@ -0,0 +1,31 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +// UNSUPPORTED: c++03, c++11, c++14, c++17 +// UNSUPPORTED: no-localization + +// Check LWG-3698: `regex_iterator` and `join_view` don't work together very well + +#include <algorithm> +#include <array> +#include <cassert> +#include <ranges> +#include <regex> +#include <string_view> + +int main(int, char**) { + char const text[] = "Hello"; + std::regex regex{"[a-z]"}; + + auto lower = + std::ranges::subrange( + std::cregex_iterator(std::ranges::begin(text), std::ranges::end(text), regex), std::cregex_iterator{}) | + std::views::join | std::views::transform([](auto const& sm) { return std::string_view(sm.first, sm.second); }); + + assert(std::ranges::equal(lower, std::to_array<std::string_view>({"e", "l", "l", "o"}))); ---------------- ldionne wrote:
Nitpick, but please `return 0;` from `main`. This is needed in freestanding mode, where `main` is not a special function (so you'd get an error saying you don't return a value from a function that returns `int`). https://github.com/llvm/llvm-project/pull/66033 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits