/
commontemplates.hpp
48 lines (42 loc) · 2.31 KB
/
commontemplates.hpp
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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* *
* {description} *
* Copyright (C) 2020 Łukasz "Kuszki" Dróżdż lukasz.kuszki@gmail.com *
* *
* This program is free software: you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation, either version 3 of the License, or *
* (at your option) any later version. *
* *
* This program is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program. If not, see http://www.gnu.org/licenses/. *
* *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#ifndef COMMONTEMPLATES_HPP
#define COMMONTEMPLATES_HPP
#endif // COMMONTEMPLATES_HPP
template<class Type, class Field, template<class> class Container>
Type& getItemByField(Container<Type>& Items, const Field& Data, Field Type::*Pointer)
{
for (auto& Item : Items) if (Item.*Pointer == Data) return Item;
}
template<class Type, class Field, template<class> class Container>
const Type& getItemByField(const Container<Type>& Items, const Field& Data, Field Type::*Pointer)
{
for (auto& Item : Items) if (Item.*Pointer == Data) return Item;
}
template<class Type, class Field, template<class> class Container>
bool hasItemByField(const Container<Type>& Items, const Field& Data, Field Type::*Pointer)
{
for (auto& Item : Items) if (Item.*Pointer == Data) return true; return false;
}
template<class Type>
bool diffComp(const Type& A, const Type& B, const Type& d)
{
return qAbs(A - B) <= d;
}