Mercurial > hgrepos > Python2 > PyMuPDF
diff mupdf-source/thirdparty/zxing-cpp/core/src/Scope.h @ 2:b50eed0cc0ef upstream
ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
The directory name has changed: no version number in the expanded directory now.
| author | Franz Glasner <fzglas.hg@dom66.de> |
|---|---|
| date | Mon, 15 Sep 2025 11:43:07 +0200 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mupdf-source/thirdparty/zxing-cpp/core/src/Scope.h Mon Sep 15 11:43:07 2025 +0200 @@ -0,0 +1,39 @@ +/* +* Copyright 2020 Axel Waggershauser +*/ +// SPDX-License-Identifier: Apache-2.0 + +#pragma once + +#include <utility> + +namespace ZXing { + +/** + * ScopeExit is a trivial helper meant to be later replaced by std::scope_exit from library fundamentals TS v3. + */ + +template <typename EF> +class ScopeExit +{ + EF fn; +public: + ScopeExit(EF&& fn) : fn(std::move(fn)) {} + ~ScopeExit() { fn(); } +}; + +template <class EF> +ScopeExit(EF) -> ScopeExit<EF>; + +/** + * The SCOPE_EXIT macro is eliminating the need to give the object a name. + * Example usage: + * SCOPE_EXIT([]{ printf("exiting scope"); }); + */ + +#define SCOPE_EXIT_CAT2(x, y) x##y +#define SCOPE_EXIT_CAT(x, y) SCOPE_EXIT_CAT2(x, y) +#define SCOPE_EXIT const auto SCOPE_EXIT_CAT(scopeExit_, __COUNTER__) = ScopeExit + +} // ZXing +