MRScopedValue.h

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#pragma once
 
#include "MRFinally.h"
 
#define MR_SCOPED_VALUE( var, ... ) \
auto MR_CONCAT( _prev_value_, __LINE__ ) = std::move( var ); ( var ) = ( __VA_ARGS__ ); MR_FINALLY { ( var ) = std::move( MR_CONCAT( _prev_value_, __LINE__ ) ); }