__gnu_cxx::temporary

__gnu_cxx::temporary_buffer

Section: C Library Functions (3) Updated: 27 Aug 2009 Local index Up

NAME

__gnu_cxx::temporary_buffer -

SYNOPSIS

Inherits std::_Temporary_buffer< _ForwardIterator, _Tp >.

Public Types

typedef pointer iterator

typedef value_type * pointer

typedef ptrdiff_t size_type

typedef _Tp value_type

Public Member Functions

iterator begin ()

iterator end ()

size_type requested_size () const

size_type size () const

temporary_buffer (_ForwardIterator __first, _ForwardIterator __last)

~temporary_buffer ()

Protected Member Functions

void _M_initialize_buffer (const _Tp &val, __false_type)

void _M_initialize_buffer (const _Tp &, __true_type)

Protected Attributes

pointer _M_buffer

size_type _M_len

size_type _M_original_len

Detailed Description

template<class _ForwardIterator, class _Tp = typename std::iterator_traits<_ForwardIterator>::value_type> struct __gnu_cxx::temporary_buffer< _ForwardIterator, _Tp >

This class provides similar behavior and semantics of the standard functions get_temporary_buffer() and return_temporary_buffer(), but encapsulated in a type vaguely resembling a standard container.

By default, a temporary_buffer<Iter> stores space for objects of whatever type the Iter iterator points to. It is constructed from a typical [first,last) range, and provides the begin(), end(), size() functions, as well as requested_size(). For non-trivial types, copies of *first will be used to initialize the storage.

malloc is used to obtain underlying storage.

Like get_temporary_buffer(), not all the requested memory may be available. Ideally, the created buffer will be large enough to hold a copy of [first,last), but if size() is less than requested_size(), then this didn't happen.

Definition at line 186 of file ext/memory.