mirror of
https://github.com/mstorsjo/llvm-mingw
synced 2026-06-21 14:01:00 +00:00
Martin Storsjö
dc9837d908
This covers the original testcase from https://github.com/mstorsjo/llvm-mingw/issues/538.
47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
/*
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* Copyright (c) 2026 Martin Storsjo
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*
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* This file is part of llvm-mingw.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <array>
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#include <atomic>
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#include <cstdint>
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#include <iostream>
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#include <numeric>
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int retval = 0;
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template <std::size_t size, std::size_t max_size>
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void f() {
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using type_t = std::array<std::uint8_t, size>;
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type_t init;
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for (std::size_t i = 0; i < size; i++)
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init[i] = i;
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std::atomic<type_t> atom(init);
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bool match = atom.load() == init;
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std::cout << size << " byte atomic: " << (match ? "ok\n" : "FAILED\n");
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if (!match)
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retval = 1;
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if constexpr (size < max_size) {
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f<size + 1, max_size>();
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}
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}
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int main() {
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f<1, 32>();
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return retval;
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}
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