mirror of
https://github.com/pocketpy/pocketpy
synced 2025-10-26 14:30:17 +00:00
45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
/***************************************************************************
|
|
* Copyright (c) Johan Mabille, Sylvain Corlay and Wolf Vollprecht *
|
|
* Copyright (c) QuantStack *
|
|
* *
|
|
* Distributed under the terms of the BSD 3-Clause License. *
|
|
* *
|
|
* The full license is in the file LICENSE, distributed with this software. *
|
|
****************************************************************************/
|
|
|
|
#ifndef XTL_FUNCTIONAL_HPP
|
|
#define XTL_FUNCTIONAL_HPP
|
|
|
|
#include <utility>
|
|
|
|
#include "xtl_config.hpp"
|
|
#include "xtype_traits.hpp"
|
|
|
|
namespace xtl
|
|
{
|
|
/***************************
|
|
* identity implementation *
|
|
***************************/
|
|
|
|
struct identity
|
|
{
|
|
template <class T>
|
|
T&& operator()(T&& x) const
|
|
{
|
|
return std::forward<T>(x);
|
|
}
|
|
};
|
|
|
|
/*************************
|
|
* select implementation *
|
|
*************************/
|
|
|
|
template <class B, class T1, class T2, XTL_REQUIRES(all_scalar<B, T1, T2>)>
|
|
inline std::common_type_t<T1, T2> select(const B& cond, const T1& v1, const T2& v2) noexcept
|
|
{
|
|
return cond ? v1 : v2;
|
|
}
|
|
}
|
|
|
|
#endif
|