NAME

       __gnu_cxx::__pool_alloc_base - Base class for __pool_alloc.

SYNOPSIS

       #include <pool_allocator.h>

       Inherited by __gnu_cxx::__pool_alloc< _Tp > [private].

   Protected Types
       enum { _S_align }
       enum { _S_max_bytes }
       enum { _S_free_list_size }

   Protected Member Functions
       char * _M_allocate_chunk (size_t __n, int &__nobjs)
       _Obj *volatile * _M_get_free_list (size_t __bytes)  throw ()
       __mutex & _M_get_mutex ()  throw ()
       void * _M_refill (size_t __n)
       size_t _M_round_up (size_t __bytes)

   Static Protected Attributes
       static char * _S_end_free
       static _Obj *volatile _S_free_list [_S_free_list_size]
       static size_t _S_heap_size
       static char * _S_start_free

Detailed Description

       Base class for __pool_alloc.

       Uses various allocators to fulfill underlying requests (and makes as few requests as
       possible when in default high-speed pool mode).

       Important implementation properties: 0. If globally mandated, then allocate objects from
       new

       1.  If the clients request an object of size > _S_max_bytes, the resulting object will be
           obtained directly from new

       2.  In all other cases, we allocate an object of size exactly _S_round_up(requested_size).
           Thus the client has enough size information that we can return the object to the
           proper free list without permanently losing part of the object.

Author

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                                            libstdc++          __gnu_cxx::__pool_alloc_base(3cxx)