first commit
This commit is contained in:
Jose Caban
165
extern/stdcxx/4.2.1/doc/stdlibref/remove-copy-if.html
vendored
Normal file
165
extern/stdcxx/4.2.1/doc/stdlibref/remove-copy-if.html
vendored
Normal file
@@ -0,0 +1,165 @@
|
||||
<!--
|
||||
Licensed to the Apache Software Foundation (ASF) under one or more
|
||||
contributor license agreements. See the NOTICE file distributed
|
||||
with this work for additional information regarding copyright
|
||||
ownership. The ASF licenses this file to you under the Apache
|
||||
License, Version 2.0 (the License); you may not use this file
|
||||
except in compliance with the License. You may obtain a copy of
|
||||
the License at
|
||||
|
||||
http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
Unless required by applicable law or agreed to in writing, software
|
||||
distributed under the License is distributed on an "AS IS" BASIS,
|
||||
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
|
||||
implied. See the License for the specific language governing
|
||||
permissions and limitations under the License.
|
||||
|
||||
Copyright 1999-2007 Rogue Wave Software, Inc.
|
||||
-->
|
||||
|
||||
<HTML>
|
||||
<HEAD>
|
||||
<TITLE>remove_copy_if()</TITLE>
|
||||
<LINK REL=StyleSheet HREF="../rw.css" TYPE="text/css" TITLE="Apache stdcxx Stylesheet"></HEAD>
|
||||
<BODY BGCOLOR=#FFFFFF>
|
||||
<A HREF="remove-copy.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="remove-if.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>remove_copy_if()</H2>
|
||||
<P><B>Library:</B> <A HREF="2-9.html">Algorithms</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">Complexity</A></LI>
|
||||
<LI><A HREF="#sec6">Example</A></LI>
|
||||
<LI><A HREF="#sec7">See Also</A></LI>
|
||||
<LI><A HREF="#sec8">Standards Conformance</A></LI>
|
||||
</UL>
|
||||
<A NAME="sec1"><H3>Local Index</H3></A>
|
||||
No Entries
|
||||
<A NAME="sec2"><H3>Summary</H3></A>
|
||||
<P>Algorithm that copies all elements other than those that satisfy a given predicate from one range to another</P>
|
||||
<A NAME="sec3"><H3>Synopsis</H3></A>
|
||||
|
||||
<PRE>#include <algorithm>
|
||||
|
||||
namespace std {
|
||||
template <class InputIterator,
|
||||
class OutputIterator,
|
||||
class Predicate>
|
||||
OutputIterator remove_copy_if(InputIterator start,
|
||||
InputIterator finish,
|
||||
OutputIterator result,
|
||||
Predicate pred);
|
||||
}
|
||||
</PRE>
|
||||
<A NAME="sec4"><H3>Description</H3></A>
|
||||
<P>The <SAMP>remove_copy_if()</SAMP> algorithm copies all the elements referred to by the iterator <SAMP>i</SAMP> in the range <SAMP>[start, finish)</SAMP> for which the following condition does <I>not</I> hold: <SAMP>pred(*i) == true</SAMP>. <SAMP>remove_copy_if()</SAMP> returns an iterator that points to the end of the resulting range. <SAMP>remove_copy_if()</SAMP> is stable, which means that the relative order of the elements in the resulting range is the same as their relative order in the original range. </P>
|
||||
<A NAME="sec5"><H3>Complexity</H3></A>
|
||||
<P>Exactly <SAMP>finish - start </SAMP>applications of the corresponding predicate are done. </P>
|
||||
<A NAME="sec6"><H3>Example</H3></A>
|
||||
|
||||
<UL><PRE>//
|
||||
// remove.cpp
|
||||
//
|
||||
|
||||
#include <algorithm> // for copy, remove, remove_copy, remove_if
|
||||
#include <functional> // for unary_function
|
||||
#include <iostream> // for cout, endl
|
||||
#include <iterator> // for ostream_iterator
|
||||
#include <vector> // for vector
|
||||
|
||||
|
||||
template<class Arg>
|
||||
struct not_zero: public std::unary_function<Arg, bool>
|
||||
{
|
||||
bool operator() (const Arg &a) const {
|
||||
return a != 0;
|
||||
}
|
||||
};
|
||||
|
||||
|
||||
int main ()
|
||||
{
|
||||
// For convenience.
|
||||
typedef std::vector<int, std::allocator<int> > Vector;
|
||||
typedef std::ostream_iterator<int, char,
|
||||
std::char_traits<char> >
|
||||
Iter;
|
||||
|
||||
// Populate a vector with elements from an array.
|
||||
const Vector::value_type arr[] = { 1, 2, 3, 4, 5,
|
||||
6, 7, 8, 9, 10};
|
||||
Vector v (arr + 0, arr + sizeof arr / sizeof *arr);
|
||||
|
||||
// Write out the contents to cout.
|
||||
std::copy (v.begin (), v.end (), Iter (std::cout," "));
|
||||
std::cout << std::endl << std::endl;
|
||||
|
||||
// Move the 7 to the end of the vector.
|
||||
Vector::iterator result = std::remove (v.begin (),
|
||||
v.end (), 7);
|
||||
|
||||
// Delete the 7 from the vector.
|
||||
v.erase (result, v.end ());
|
||||
|
||||
std::copy (v.begin (), v.end (), Iter (std::cout, " "));
|
||||
std::cout << std::endl << std::endl;
|
||||
|
||||
// Remove all non-zero elements beyond the fourth element.
|
||||
v.erase (std::remove_if (v.begin () + 4, v.end (),
|
||||
not_zero<int> ()), v.end ());
|
||||
|
||||
std::copy (v.begin (), v.end (), Iter (std::cout, " "));
|
||||
std::cout << std::endl << std::endl;
|
||||
|
||||
// Now remove all 3s on output.
|
||||
std::remove_copy (v.begin (), v.end (),
|
||||
Iter (std::cout, " "), 3);
|
||||
std::cout << std::endl << std::endl;
|
||||
|
||||
// Now remove everything satisfying predicate on output.
|
||||
std::remove_copy_if (v.begin (), v.end (),
|
||||
Iter (std::cout, " "),
|
||||
not_zero<int>());
|
||||
|
||||
// Return 0 on success, a non-zero value on failure
|
||||
return !!v.empty ();
|
||||
}
|
||||
|
||||
|
||||
Program Output:
|
||||
</PRE></UL>
|
||||
<UL><PRE>1 2 3 4 5 6 7 8 9 10
|
||||
|
||||
1 2 3 4 5 6 8 9 10
|
||||
|
||||
1 2 3 4
|
||||
|
||||
1 2 4
|
||||
|
||||
</PRE></UL>
|
||||
<A NAME="sec7"><H3>See Also</H3></A>
|
||||
<P><SAMP><A HREF="remove.html">remove()</A></SAMP>, <SAMP><A HREF="remove-if.html">remove_if()</A></SAMP>, <SAMP><A HREF="remove-copy.html">remove_copy()</A></SAMP></P>
|
||||
<A NAME="sec8"><H3>Standards Conformance</H3></A>
|
||||
<P><I>ISO/IEC 14882:1998 -- International Standard for Information Systems -- Programming Language C++, Section 25.2.7</I></P>
|
||||
|
||||
<BR>
|
||||
<HR>
|
||||
<A HREF="remove-copy.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="remove-if.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>
|
||||
Reference in New Issue
Block a user