arena< N > Class Template Reference

#include <short_alloc.h>

Public Member Functions
	arena (const arena &_other)
char *	allocate (std::size_t n)
void	deallocate (char *p, std::size_t n)
std::size_t	used () const
void	reset ()

Static Public Member Functions
static std::size_t	size ()

Private Member Functions
std::size_t	align_up (std::size_t n)
bool	pointer_in_buffer (char *p)

Private Attributes
char	buf_ [N]
char *	ptr_

Static Private Attributes
static const std::size_t	alignment = 16

Detailed Description

template<std::size_t N>
class arena< N >

Short allocator class; Taken from internet in case we need to discuss legal issues at some point in the future;

The allocator first needs an arena of a fixed compiled size; Subsequently memory from this arena is allocated/free; No interaction with malloca afterwards. However when using it with STL vector one needs to be carefull and not resize; The allocation/free needs to happen in a stack like fassion;

E.g., you can't do this vector<int, short_alloc> v1(10) vector<int, short_alloc> v2(10) V1.resize(...);

As a rule of thumb just don't use resize();

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The documentation for this class was generated from the following file:

• /home/yxia/Work/ibmppl.gsa/runtime/short_alloc.h