40 lines
1.0 KiB
C
40 lines
1.0 KiB
C
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#ifndef LIPSYNC_TOOLS_H
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#define LIPSYNC_TOOLS_H
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#include <functional>
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#include <memory>
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#define UNUSED(x) ((void)(x))
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template<typename T>
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using lambda_unique_ptr = std::unique_ptr<T, std::function<void(T*)>>;
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// The following definitions are taken from https://github.com/Microsoft/GSL.
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// final_act allows you to ensure something gets run at the end of a scope
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template <class F>
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class final_act
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{
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public:
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explicit final_act(F f) noexcept : f_(std::move(f)), invoke_(true) {}
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final_act(final_act&& other) noexcept : f_(std::move(other.f_)), invoke_(other.invoke_) { other.invoke_ = false; }
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final_act(const final_act&) = delete;
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final_act& operator=(const final_act&) = delete;
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~final_act() noexcept { if (invoke_) f_(); }
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private:
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F f_;
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bool invoke_;
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};
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// finally() - convenience function to generate a final_act
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template <class F>
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final_act<F> finally(const F &f) noexcept { return final_act<F>(f); }
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template <class F>
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final_act<F> finally(F &&f) noexcept { return final_act<F>(std::forward<F>(f)); }
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#endif //LIPSYNC_TOOLS_H
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