📄 queue.html

📁 指导程序员合理、高效的进行标准模板库编程。
💻 HTML
📖 第 1 页 / 共 2 页
字号:
12 下一页
<HTML>
<HEAD>
   <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1">
   <META NAME="Author" CONTENT="Zafir Anjum">
   <TITLE>MFC Programmer's SourceBook : STL Programmer's Guide</TITLE>
    <META name="description" 
     content="A freely available implementation 
     of the C++ Standard Template Library, including 
     hypertext documentation.">
	<META name="keywords" 
	content="generic programming, STL, standard template library">
</HEAD>

<SCRIPT LANGUAGE="JavaScript"><!--
var adcategory = "cpp";
// -->
</SCRIPT>
<body background="../../fancyhome/back.gif" bgcolor="#FFFFFF" >
<SCRIPT LANGUAGE="JavaScript"><!--
var nfrm = location.href.indexOf("_nfrm_");
var validframes = (top.frames.length > 0 && top.frames['ad'] && top.frames['logo'] );
var random = Math.random();

if( !validframes && nfrm == -1 )
{
	var dclkPage = "www.codeguru.com/";
	if( self.adcategory )
		dclkPage += adcategory;
	else
		dclkPage += "mfc";
	document.write('<nolayer><center>');
	document.write('<iframe src="http://ad.doubleclick.net/adi/' + dclkPage + ';ord='
	 + random + '" width=470 height=62 marginwidth=0 marginheight=0 hspace=0 vspace=0 '
	 + 'frameborder=0 scrolling=no bordercolor="#000000">');
	document.write('<a href="http://ad.doubleclick.net/jump/' + dclkPage + ';ord='
	 + random + '">');
	document.write('<img src="http://ad.doubleclick.net/ad/' + dclkPage + ';ord='
	 + random + '" height=60 width=468>' + '</a>');
	document.write('</iframe>');
	document.write('</center></nolayer>');
	document.write('<layer  src="http://ad.doubleclick.net/adl/' + dclkPage + 
	 ';ord=' + random + '"></layer>');
	document.write('<ilayer visibility=hide width=468 height=83></ilayer>');
}


//		top.location = "/show.cgi?" + adcategory + "=" + location.pathname;


// -->
</SCRIPT>
<noscript>
<p align="center">
<a href="http://ad.doubleclick.net/jump/www.codeguru.com/cpp;ord=NupaY9FCY34AAHctPx8">
<img src="http://ad.doubleclick.net/ad/www.codeguru.com/cpp;ord=NupaY9FCY34AAHctPx8"></a>
</p>
</noscript>





<BR Clear>
<H1>queue&lt;T, Sequence&gt;</H1>

<Table CellPadding=0 CellSpacing=0 width=100%>
<TR>
<TD Align=left><Img src = "containers.gif" Alt=""   WIDTH = "194"  HEIGHT = "38" ></TD>
<TD Align=right><Img src = "type.gif" Alt=""   WIDTH = "194"  HEIGHT = "39" ></TD>
</TR>
<TR>
<TD Align=left><Img src = "adaptors.gif" Alt=""   WIDTH = "194"  HEIGHT = "38" ></TD>
<TD Align=right></TD>
</TR>
<TR>
<TD Align=left VAlign=top><b>Categories</b>: containers, adaptors</TD>
<TD Align=right VAlign=top><b>Component type</b>: type</TD>
</TR>
</Table>

<h3>Description</h3>
A <tt>queue</tt> is an adaptor that provides a restricted subset of
<A href="Container.html">Container</A> functionality
A <tt>queue</tt> is a &quot;first in first out&quot; (FIFO) data structure.  <A href="#1">[1]</A> That is,
elements are added to the back of the <tt>queue</tt> and may be removed
from the front;
<tt>Q.front()</tt> is the element that was added to the <tt>queue</tt> least recently.
<tt>Queue</tt> does not allow iteration through its elements.  <A href="#2">[2]</A>
<P>
<tt>Queue</tt> is a container adaptor, meaning that it is implemented on
top of some underlying container type.  By default that underlying
type is <tt><A href="Deque.html">deque</A></tt>, but a different type may be selected explicitly.
<h3>Example</h3>
<pre>
int main() {
  queue&lt;int&gt; Q;
  Q.push(8);
  Q.push(7);
  Q.push(6);
  Q.push(2);
  
  assert(Q.size() == 4);
  assert(Q.back() == 2);

  assert(Q.front() == 8);
  Q.pop();

  assert(Q.front() == 7);
  Q.pop();

  assert(Q.front() == 6);
  Q.pop();
  
  assert(Q.front() == 2);
  Q.pop();

  assert(Q.empty());
}
</pre>
<h3>Definition</h3>
Defined in <A href="stack.h">stack.h</A>.
<h3>Template parameters</h3>
<Table border>
<TR>
<TH>
Parameter
</TH>
<TH>
Description
</TH>
<TH>
Default
</TH>
</TR>
<TR>
<TD VAlign=top>
<tt>T</tt>
</TD>
<TD VAlign=top>
The type of object stored in the queue.
</TD>
<TD VAlign=top>
&nbsp;
</TD>
</TR>
<TR>
<TD VAlign=top>
<tt>Sequence</tt>
</TD>
<TD VAlign=top>
The type of the underlying container used to implement the queue.
</TD>
<TD VAlign=top>
<tt><A href="Deque.html">deque</A>&lt;T&gt;</tt>
</TD>
</tr>
</table>
<h3>Model of</h3>
<A href="Assignable.html">Assignable</A>, <A href="DefaultConstructible.html" tppabs="http://www.sgi.com/Technology/STL/DefaultConstructible.shtml">Default Constructible</A>
<h3>Type requirements</h3>
<UL>
<LI>
<tt>T</tt> is a model of <A href="Assignable.html">Assignable</A>.
<LI>
<tt>Sequence</tt> is a model of <A href="FrontInsertionSequence.html">Front Insertion Sequence</A>.
<LI>
<tt>Sequence</tt> is a model of <A href="BackInsertionSequence.html">Back Insertion Sequence</A>.
<LI>
<tt>Sequence::value_type</tt> is the same type as <tt>T</tt>.
<LI>
If <tt>operator==</tt> is used, then <tt>T</tt> is a model of
   <A href="EqualityComparable.html">Equality Comparable</A>
<LI>
If <tt>operator&lt;</tt> is used, then <tt>T</tt> is a model of <A href="LessThanComparable.html">LessThan Comparable</A>.
</UL>
<h3>Public base classes</h3>
None.
<h3>Members</h3>
<Table border>
<TR>
<TH>
Member
</TH>
<TH>
Where defined
</TH>
<TH>
Description
</TH>
</TR>
<TR>
<TD VAlign=top>
<tt>value_type</tt>
</TD>
<TD VAlign=top>
<tt>queue</tt>
</TD>
<TD VAlign=top>
See below.
</TD>
</TR>
<TR>
<TD VAlign=top>
<tt>size_type</tt>
</TD>
<TD VAlign=top>
<tt>queue</tt>
</TD>
<TD VAlign=top>
See below.
</TD>
</TR>
<TR>
<TD VAlign=top>
<tt>queue()</tt>
</TD>
<TD VAlign=top>
 <A href="DefaultConstructible.html">Default Constructible</A>
</TD>
<TD VAlign=top>
The default constructor.  Creates an empty <tt>queue</tt>.
</TD>
</TR>
<TR>
<TD VAlign=top>
<tt>queue(const queue&amp;)</tt>
</TD>
<TD VAlign=top>
 <A href="Assignable.html">Assignable</A>
</TD>
<TD VAlign=top>
The copy constructor.
</TD>
</TR>
<TR>
<TD VAlign=top>
<tt>queue&amp; operator=(const queue&amp;)</tt>
</TD>
<TD VAlign=top>
 <A href="Assignable.html">Assignable</A>
</TD>
<TD VAlign=top>
The assignment operator.
</TD>
</TR>
<TR>
<TD VAlign=top>
<tt>bool empty() const</tt>
</TD>
<TD VAlign=top>
<tt>queue</tt>
</TD>
<TD VAlign=top>
See below.
</TD>
</TR>
<TR>
<TD VAlign=top>
<tt>size_type size() const</tt>
</TD>
<TD VAlign=top>
<tt>queue</tt>
</TD>
<TD VAlign=top>
See below.
</TD>
</TR>
<TR>
<TD VAlign=top>
<tt>value_type&amp; front()</tt>
</TD>
<TD VAlign=top>
<tt>queue</tt>
</TD>
<TD VAlign=top>
See below.
</TD>
</TR>
<TR>
<TD VAlign=top>
<tt>const value_type&amp; front() const</tt>
</TD>
<TD VAlign=top>
<tt>queue</tt>
</TD>
<TD VAlign=top>
See below.
</TD>
</TR>
<TR>
<TD VAlign=top>
<tt>value_type&amp; back()</tt>
</TD>
<TD VAlign=top>
<tt>queue</tt>
</TD>
12 下一页
⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -