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Scope Guard #3

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Scope Guard #3

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912459c
add scope guard
joren-dev Nov 21, 2020
aa921dc
remove redundant overload, add constexpr
joren-dev Nov 21, 2020
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31 changes: 31 additions & 0 deletions pe_scope_guard/pe_scope_guard.hpp
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Original file line number Diff line number Diff line change
@@ -0,0 +1,31 @@
#ifndef PE_SCOPE_GUARD_HPP
#define PE_SCOPE_GUARD_HPP

#include <concepts>
#include <tuple>
#include <type_traits>
#include <utility>

namespace peach
{

template< typename... Tys > class ScopeGuard
{
public:
constexpr ScopeGuard( Tys... callables ) requires( ( std::same_as< std::invoke_result_t< Tys >, void > && ... ) )
: m_callables( std::make_tuple( callables... ) )
{
}

~ScopeGuard( ) noexcept
{
std::apply( []( auto&&... args ) { ( ( args( ) ), ... ); }, m_callables );
}
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private:
std::tuple< Tys... > m_callables;
};

} // namespace peach

#endif // PE_SCOPE_GUARD_HPP