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| <H2>operator delete</H2> |
| <P><B>Library:</B> <A HREF="2-2.html">Language support</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">Global Operators</A></LI> |
| <LI><A HREF="#sec6">See Also</A></LI> |
| <LI><A HREF="#sec7">Standards Conformance</A></LI> |
| </UL> |
| <A NAME="sec1"><H3>Local Index</H3></A> |
| <H4>Non-Members</H4> |
| <UL><TABLE CELLPADDING=3> |
| <TR><TD VALIGN=top> |
| <A HREF="#idx1050">delete()</A><BR> |
| </TD> |
| <TD VALIGN=top></TD></TR> |
| </TABLE></UL> |
| |
| <A NAME="sec2"><H3>Summary</H3></A> |
| <P>Storage deallocation functions implicitly called by the corresponding delete expressions to deallocate storage previously allocated by one of the matching allocation functions</P> |
| <A NAME="sec3"><H3>Synopsis</H3></A> |
| |
| <PRE>#include <new> |
| |
| namespace std { |
| struct nothrow_t {}; |
| extern const nothrow_t nothrow; |
| } |
| |
| void operator delete(void*) throw(); |
| void operator delete(void*, const std::nothrow_t&) throw(); |
| void operator delete[](void*) throw(); |
| void operator delete[](void*, const std::nothrow_t&) throw(); |
| void operator delete(void*, void*) throw(); |
| void operator delete[](void*, void*) throw(); |
| </PRE> |
| <A NAME="sec4"><H3>Description</H3></A> |
| <P>The library provides definitions for six overloads of the global operator <SAMP>delete</SAMP>. The functions are implicitly called as the second step (after the call to the destructor, if any) during the evaluation of the corresponding <SAMP>delete</SAMP> expression to deallocate storage previously allocated by one of the matching allocation functions (<SAMP>::operator new</SAMP>). Replacements for the replaceable forms of the functions should always paired with the replacements for the corresponding overload of operator <SAMP>new</SAMP>.</P> |
| <A NAME="sec5"><H3>Global Operators</H3></A> |
| |
| <A NAME="idx1050"></A><PRE>void operator <B>delete</B>(void*) throw(); |
| void operator <B>delete</B>(void*, const std::nothrow_t&) throw();</PRE> |
| <UL> |
| <P>Deallocation functions implicitly called by a <SAMP>delete</SAMP> expression to deallocate storage previously allocated by the matching <SAMP>::operator new (std::size_t)</SAMP> or <SAMP>::operator new (std::size_t, std::nothrow&)</SAMP>, respectively. A C++ program may replace these functions.</P> |
| </UL> |
| |
| |
| <A NAME="idx1051"></A><PRE>void operator <B>delete</B>[](void*) throw(); |
| void operator <B>delete</B>[](void*, const std::nothrow_t&) throw(); </PRE> |
| <UL> |
| <P>Deallocation functions implicitly called by a <SAMP>delete</SAMP> expression to deallocate storage previously allocated by the matching <SAMP>::operator new[] (std::size_t)</SAMP> or <SAMP>::operator new[] (std::size_t, std::nothrow&)</SAMP>, respectively. A C++ program may replace these functions.</P> |
| </UL> |
| |
| |
| <A NAME="idx1052"></A><PRE>void operator <B>delete</B>(void*, void*) throw(); |
| void operator <B>delete</B>[](void*, void*) throw(); </PRE> |
| <UL> |
| <P>Default functions implicitly called when the initialization in a placement <SAMP>new</SAMP> expression that invokes the placement form of operator <SAMP>new</SAMP> terminates by throwing an exception. A C++ program may not replace these functions.</P> |
| </UL> |
| |
| <A NAME="sec6"><H3>See Also</H3></A> |
| <P><B><I><A HREF="new-h.html"><new></A></I></B>, <B><I><A HREF="bad-alloc.html">bad_alloc</A></I></B>, <B><I><A HREF="operatornew.html">operator new</A></I></B></P> |
| <A NAME="sec7"><H3>Standards Conformance</H3></A> |
| <P><I>ISO/IEC 14882:1998 -- International Standard for Information Systems -- Programming Language C++, Section 18.4</I></P> |
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