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<HTML><!-- -- Copyright (c) 1996-1999 -- Silicon Graphics Computer Systems, Inc. -- -- Permission to use, copy, modify, distribute and sell this software -- and its documentation for any purpose is hereby granted without fee, -- provided that the above copyright notice appears in all copies and -- that both that copyright notice and this permission notice appear -- in supporting documentation. Silicon Graphics makes no -- representations about the suitability of this software for any -- purpose. It is provided "as is" without express or implied warranty. -- -- Copyright (c) 1994 -- Hewlett-Packard Company -- -- Permission to use, copy, modify, distribute and sell this software -- and its documentation for any purpose is hereby granted without fee, -- provided that the above copyright notice appears in all copies and -- that both that copyright notice and this permission notice appear -- in supporting documentation. Hewlett-Packard Company makes no -- representations about the suitability of this software for any -- purpose. It is provided "as is" without express or implied warranty. -- --><Head><Title>iter_swap</Title><!-- Generated by htmldoc --></HEAD><BODY TEXT="#000000" LINK="#006600" ALINK="#003300" VLINK="#7C7F87" BGCOLOR="#FFFFFF"><A HREF="/"><IMG SRC="/images/common/sgilogo_small.gif" ALT="SGI Logo" WIDTH="80" HEIGHT="72" BORDER="0"></A><P><!--end header--><BR Clear><H1>iter_swap</H1><Table CellPadding=0 CellSpacing=0 width=100%><TR><TD Align=left><Img src = "algorithms.gif" Alt="" WIDTH = "194" HEIGHT = "38" ></TD><TD Align=right><Img src = "function.gif" Alt="" WIDTH = "194" HEIGHT = "38" ></TD></TR><TR><TD Align=left VAlign=top><b>Category</b>: algorithms</TD><TD Align=right VAlign=top><b>Component type</b>: function</TD></TR></Table><h3>Prototype</h3><pre>template <class <A href="ForwardIterator.html">ForwardIterator</A>1, class <A href="ForwardIterator.html">ForwardIterator</A>2>inline void iter_swap(ForwardIterator1 a, ForwardIterator2 b);</pre> <h3>Description</h3>Equivalent to <tt><A href="swap.html">swap</A>(*a, *b)</tt>. <A href="#1">[1]</A><h3>Definition</h3>Declared in <A href="algo.h">algo.h</A>. The implementation is in <A href="algobase.h">algobase.h</A>.<h3>Requirements on types</h3><UL><LI><tt>ForwardIterator1</tt> and <tt>ForwardIterator2</tt> are models of <A href="ForwardIterator.html">Forward Iterator</A>.<LI><tt>ForwardIterator1</tt> and <tt>ForwardIterator2</tt> are mutable.<LI><tt>ForwardIterator1</tt> and <tt>ForwardIterator2</tt> have the same value type.</UL><h3>Preconditions</h3><UL><LI><tt>ForwardIterator1</tt> and <tt>ForwardIterator2</tt> are dereferenceable.</UL><h3>Complexity</h3>See <tt><A href="swap.html">swap</A></tt> for a discussion.<h3>Example</h3><pre>int x = 1;int y = 2;assert(x == 1 && y == 2);iter_swap(&x, &y);assert(x == 2 && y == 1);</pre><h3>Notes</h3><P><A name="1">[1]</A>Strictly speaking, <tt>iter_swap</tt> is redundant. It exists only fortechnical reasons: in some circumstances, some compilers havedifficulty performing the type deduction required to interpret<tt>swap(*a, *b)</tt>.<h3>See also</h3><tt><A href="swap.html">swap</A></tt>, <tt><A href="swap_ranges.html">swap_ranges</A></tt><!-- start footer --><!-- Footer Begins --><STYLE TYPE="text/css"><!--TD.footer, TD.footer A{ font-family: Arial, helvetica, sans-serif; font-size: 8pt;}A.home {font-family: Arial, helvetica, sans-serif;}--></STYLE><P><A CLASS="home" HREF="index.html">STL Home</A><P><TABLE WIDTH="600" CELLPADDING="0" CELLPADDING="0" BORDER="0"> <TR> <TD ALIGN="RIGHT" CLASS="footer"><A HREF="/company_info/terms.html" TARGET="_top">terms of use</A> | <A HREF="/company_info/privacy.html" TARGET="_top">privacy policy</A></TD> <TD ALIGN="CENTER" CLASS="footer"> | </TD> <TD ALIGN="LEFT" CLASS="footer"><A HREF="/cgi-bin/feedback/" TARGET="_top">contact us</A></TD> </TR><TR> <TD ALIGN="RIGHT" CLASS="footer">Copyright © 1993-2003 Silicon Graphics, Inc. All rights reserved.</TD> <TD ALIGN="CENTER" CLASS="footer"> | </TD> <TD ALIGN="LEFT" CLASS="footer"><A HREF="/company_info/trademarks/" TARGET="_top">Trademark Information</A></TD> </TR></TABLE><!-- Footer Ends --><!-- end footer --><P></BODY></HTML> ⌨️ 快捷键说明
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