filters.h

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/**
 
    @file      filters.h
    @author    Khrapov
    @date      3.12.2023
    @copyright © Nick Khrapov, 2023. All right reserved.
 
**/
#pragma once
 
#include <functional>
 
namespace qx
{
template<class T>
using filter = std::function<bool(const T&)>;
 
namespace filters
{
 
constexpr auto always_true = [](const auto&...)
{
    return true;
};
 
} // namespace filters
 
} // namespace qx