null_allocator Class Reference

Detailed Description

A composable RawAllocator that will always fail.

This is useful for compositioning or as last resort in binary_segregator.

Member Functions
void *	allocate_node (std::size_t size, std::size_t)
void	deallocate_node (void *, std::size_t, std::size_t) noexcept
void *	try_allocate_node (std::size_t, std::size_t) noexcept
bool	try_deallocate_node (void *, std::size_t, std::size_t) noexcept

Member Functions

allocate_node()

void * allocate_node	(	std::size_t	size,
		std::size_t
	)

Effects:

Will always throw.

Throws:

A out_of_fixed_memory exception.

deallocate_node()

void deallocate_node ( void *  , std::size_t  , std::size_t    )

noexcept

Requires:

Must not be called.

try_allocate_node()

void * try_allocate_node ( std::size_t  , std::size_t    )

noexcept

Effects:

Does nothing.

Returns:

Always returns nullptr.

try_deallocate_node()

bool try_deallocate_node ( void *  , std::size_t  , std::size_t    )

noexcept

Effects:

Does nothing.

Returns:

Always returns false.