utility.hpp File Reference

An adaptation for host-and-device use of some of the standard C++ library's <utility> code. More...

#include <kat/common.hpp>
#include <type_traits>
#include <utility>
#include <kat/detail/integer_sequence.hpp>

Go to the source code of this file.

Classes
struct	kat::detail::addr_impl_ref< T >
struct	kat::detail::addressof_impl< T >

Functions
template<typename T >
KAT_FHD CONSTEXPR_SINCE_CPP_14 void	kat::swap (T &a, T &b) noexcept(std::is_nothrow_move_constructible< T >::value &&std::is_nothrow_move_assignable< T >::value)
	Swap two values on the device-side, in-place. More...
template<class T >
const KAT_FHD T *	kat::addressof (const T &&)=delete
template<class T >
KAT_FHD T *	kat::addressof (T &v)
	Obtains the actual address of the object or function arg, even in presence of overloaded operator&() More...

Detailed Description

An adaptation for host-and-device use of some of the standard C++ library's <utility> code.

Function Documentation

addressof()

template<class T >

KAT_FHD T* kat::addressof

(

T &

v

)

Obtains the actual address of the object or function arg, even in presence of overloaded operator&()

Note

In the standard library, this function is somehow in <memory>.

swap()

template<typename T >

KAT_FHD CONSTEXPR_SINCE_CPP_14 void kat::swap ( T &  a, T &  b  )

noexcept

Swap two values on the device-side, in-place.

Note

A (CUDA, or any other) compiler will often not actually emit any code when this function is used. Instead, it will use one argument instead of the other in later code, i.e. "swap" them in its own internal figuring.

Is this enough, without the multiple specializations for std::swap?

Todo:

How does EASTL swap work? Should I incorporate its specializations?

Note

Some kat types overload this default implementation.