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It is provided "as is" without express or implied warranty. -- --><Head><Title>replace_copy</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>replace_copy</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="InputIterator.html">InputIterator</A>, class OutputIterator, class T>OutputIterator replace_copy(InputIterator first, InputIterator last, OutputIterator result, const T& old_value, const T& new_value);</pre> <h3>Description</h3><tt>Replace_copy</tt> copies elements from the range <tt>[first, last)</tt> tothe range <tt>[result, result + (last-first))</tt>, except that any elementequal to <tt>old_value</tt> is not copied; <tt>new_value</tt> is copied instead.More precisely, for every integer <tt>n</tt> such that <tt>0 <= n < last-first</tt>,<tt>replace_copy</tt> performs the assignment <tt>*(result+n) = new_value</tt>if <tt>*(first+n) == old_value</tt>, and <tt>*(result+n) = *(first+n)</tt> otherwise.<h3>Definition</h3>Defined in the standard header <A href="algorithm">algorithm</A>, and in the nonstandardbackward-compatibility header <A href="algo.h">algo.h</A>.<h3>Requirements on types</h3><UL><LI><tt>InputIterator</tt> is a model of <A href="InputIterator.html">Input Iterator</A>.<LI><tt>OutputIterator</tt> is a model of <A href="OutputIterator.html">Output Iterator</A>.<LI><tt>T</tt> is <A href="EqualityComparable.html">EqualityComparable</A>, and may be compared for equality with objects of <tt>InputIterator</tt>'s value type.<LI><tt>T</tt> is <A href="Assignable.html">Assignable</A>.<LI><tt>T</tt> is convertible to a type in <tt>OutputIterator</tt>'s set of value types.</UL><h3>Preconditions</h3><UL><LI><tt>[first, last)</tt> is a valid range.<LI>There is enough space in the output range to store the copied values. That is, <tt>[result, result + (last-first))</tt> is a valid range.<LI><tt>result</tt> is not an iterator within the range <tt>[first, last)</tt>.</UL><h3>Complexity</h3>Linear. <tt>Replace_copy</tt> performs exactly <tt>last - first</tt> comparisons for equality and exactly <tt>last - first</tt> assignments.<h3>Example</h3><pre><A href="Vector.html">vector</A><int> V1;V1.push_back(1);V1.push_back(2);V1.push_back(3);V1.push_back(1);<A href="Vector.html">vector</A><int> V2(4);replace_copy(V1.begin(), V1.end(), V2.begin(), 1, 99);assert(V[0] == 99 && V[1] == 2 && V[2] == 3 && V[3] == 99);</pre><h3>Notes</h3><h3>See also</h3><tt><A href="copy.html">copy</A></tt>, <tt><A href="replace.html">replace</A></tt>, <tt><A href="replace_if.html">replace_if</A></tt>, <tt><A href="replace_copy_if.html">replace_copy_if</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. 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