| <HTML> |
| <HEAD> |
| <TITLE>get_temporary_buffer()</TITLE> |
| <LINK REL=StyleSheet HREF="../rw.css" TYPE="text/css" TITLE="Apache stdcxx Stylesheet"></HEAD> |
| <BODY BGCOLOR=#FFFFFF> |
| <A HREF="generate.html"><IMG SRC="images/bprev.gif" WIDTH=20 HEIGHT=21 ALT="Previous file" BORDER=O></A><A HREF="noframes.html"><IMG SRC="images/btop.gif" WIDTH=56 HEIGHT=21 ALT="Top of Document" BORDER=O></A><A HREF="booktoc.html"><IMG SRC="images/btoc.gif" WIDTH=56 HEIGHT=21 ALT="Contents" BORDER=O></A><A HREF="tindex.html"><IMG SRC="images/bindex.gif" WIDTH=56 HEIGHT=21 ALT="Index page" BORDER=O></A><A HREF="greater.html"><IMG SRC="images/bnext.gif" WIDTH=25 HEIGHT=21 ALT="Next file" BORDER=O></A><DIV CLASS="DOCUMENTNAME"><B>Apache C++ Standard Library Reference Guide</B></DIV> |
| <H2>get_temporary_buffer()</H2> |
| <P><B>Library:</B> <A HREF="2-4.html">General utilities</A></P> |
| |
| <PRE><HR><B><I>Function</I></B><HR></PRE> |
| |
| <UL> |
| <LI><A HREF="#sec1">Local Index</A></LI> |
| <LI><A HREF="#sec2">Summary</A></LI> |
| <LI><A HREF="#sec3">Synopsis</A></LI> |
| <LI><A HREF="#sec4">Description</A></LI> |
| <LI><A HREF="#sec5">See Also</A></LI> |
| <LI><A HREF="#sec6">Standards Conformance</A></LI> |
| </UL> |
| <A NAME="sec1"><H3>Local Index</H3></A> |
| No Entries |
| <A NAME="sec2"><H3>Summary</H3></A> |
| <P>Function template for efficient allocation of temporary storage.</P> |
| <A NAME="sec3"><H3>Synopsis</H3></A> |
| |
| <PRE>#include <memory> |
| |
| namespace std { |
| template <class T> |
| pair<T*, ptrdiff_t> get_temporary_buffer(ptrdiff_t); |
| |
| } |
| </PRE> |
| <A NAME="sec4"><H3>Description</H3></A> |
| <P>Specializations of the <SAMP>get_temporary_buffer()</SAMP> function template attempt to allocate a region of storage sufficiently large to store at least <SAMP>n</SAMP> adjacent objects of type<SAMP> T.</SAMP></P> |
| <P>On success, the function returns a pair containing the beginning address of the allocated but uninitialized region of storage and its size in units of <SAMP>sizeof(T))</SAMP>. On failure, the function returns a pair of <SAMP>0</SAMP> values.</P> |
| <P>It is not specified how the storage is allocated, however, it can be assumed that the function is at least as efficient as allocating the storage dynamically, for example, by calling operator <SAMP>new</SAMP>.</P> |
| <P>The function is thread-safe but the allocated storage must be returned by a call to <SAMP>return_temporary_buffer()</SAMP> made from the same thread as the one that obtained it.</P> |
| <A NAME="sec5"><H3>See Also</H3></A> |
| <P><B><I><A HREF="allocator.html">allocator</A></I></B>, <B><I><A HREF="pair.html">pair</A></I></B>, <SAMP><A HREF="return-temporary-buffer.html">return_temporary_buffer()</A></SAMP></P> |
| <A NAME="sec6"><H3>Standards Conformance</H3></A> |
| <P><I>ISO/IEC 14882:1998 -- International Standard for Information Systems -- Programming Language C++, Section 20.4.3</I></P> |
| |
| <BR> |
| <HR> |
| <A HREF="generate.html"><IMG SRC="images/bprev.gif" WIDTH=20 HEIGHT=21 ALT="Previous file" BORDER=O></A><A HREF="noframes.html"><IMG SRC="images/btop.gif" WIDTH=56 HEIGHT=21 ALT="Top of Document" BORDER=O></A><A HREF="booktoc.html"><IMG SRC="images/btoc.gif" WIDTH=56 HEIGHT=21 ALT="Contents" BORDER=O></A><A HREF="tindex.html"><IMG SRC="images/bindex.gif" WIDTH=56 HEIGHT=21 ALT="Index page" BORDER=O></A><A HREF="greater.html"><IMG SRC="images/bnext.gif" WIDTH=20 HEIGHT=21 ALT="Next file" BORDER=O></A> |
| |
| <!-- Google Analytics tracking code --> |
| <script src="http://www.google-analytics.com/urchin.js" type="text/javascript"> |
| </script> |
| <script type="text/javascript"> |
| _uacct = "UA-1775151-1"; |
| urchinTracker(); |
| </script> |
| <!-- end of Google Analytics tracking code --> |
| |
| </BODY> |
| </HTML> |
