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copy_stats.hpp
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copy_stats.hpp
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//
// Copyright (C) 2020-2023 Krylov Yaroslav.
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
#pragma once
struct copy_stats
{
int copy_count = 0;
int move_count = 0;
};
// TODO: template type of included value
struct copy_counter
{
int v = 0;
copy_stats* stats = nullptr;
copy_counter() = default;
copy_counter( int x, copy_stats* s )
: v( x )
, stats( s )
{}
copy_counter( const copy_counter& other )
: v( other.v )
, stats( other.stats )
{
stats->copy_count++;
}
copy_counter( copy_counter&& other ) noexcept
: v( other.v )
, stats( other.stats )
{
stats->move_count++;
}
copy_counter& operator=( const copy_counter& other )
{
if( &other != this )
{
v = other.v;
stats = other.stats;
stats->copy_count++;
}
return *this;
}
copy_counter& operator=( copy_counter&& other ) noexcept
{
if( &other != this )
{
v = other.v;
stats = other.stats;
stats->move_count++;
}
return *this;
}
copy_counter operator+( const copy_counter& r ) const
{
return copy_counter{ v + r.v, stats };
}
bool operator==( const copy_counter& other ) const
{
return v == other.v;
}
};