17 lines
404 B
C++
17 lines
404 B
C++
#pragma once
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// from: https://www.gingerbill.org/article/2015/08/19/defer-in-cpp/
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#include <functional>
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struct privDefer {
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std::function<void()> f;
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privDefer(std::function<void()> f) : f(f) {}
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~privDefer() { f(); }
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};
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#define DEFER_1(x, y) x##y
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#define DEFER_2(x, y) DEFER_1(x, y)
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#define DEFER_3(x) DEFER_2(x, __COUNTER__)
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#define defer(code) auto DEFER_3(_defer_) = privDefer([&](){code;})
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