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#pragma once
#include <exception>
#include <utility>
namespace HX {
/*
* Modeled upon the C++ standards proposal P0052r10 / Library Fundamentals v3.
* Not yet present in GNU stdlibc++ or clang libc++.
*/
template<typename F> class scope_exit {
private:
F m_func;
bool m_eod = false;
public:
explicit scope_exit(F &&f) : m_func(std::move(f)), m_eod(true) {}
scope_exit(scope_exit &&o) : m_func(std::move(o.m_func)), m_eod(o.m_eod) {
o.m_eod = false;
}
~scope_exit() try {
if (m_eod)
m_func();
} catch (...) {
}
void operator=(scope_exit &&) = delete;
void release() noexcept { m_eod = false; }
};
template<typename F> scope_exit<F> make_scope_exit(F &&f)
{
return scope_exit<F>(std::move(f));
}
} /* namespace */
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