📄 collname.htm

📁 这是关于VC++中的STL容器的资料,包括了STL容器各个类之间关系以及类的说明
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<title>collate_byname</title>
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<pre>
<font size=5>Class Name</font>            collate_byname

<font size=5>Header File</font>          &lt;locale&gt;

<font size=5>Classification</font>      abstract data type

</pre>

<a href="collname.htm#crd">Class Relationship Diagram</a><br> 
<br>
<a href="collname.htm#class-descrip">Class Description</a>

<h1>Member Classes</h1>
<p>
None
</p>

<h1>Methods</h1>
<pre>
<a href="collname.htm#collate-byname">
explicit collate_byname(const char*, size_t refs = 0);</a> 

<a href="collname.htm#~collate-byname">
~collate_byname();</a> 

<a href="collname.htm#do-compare">
virtual int do_compare(const charT* low1, const charT* high1, 
const charT* low2, const charT* high2) const;</a> 

<a href="collname.htm#do-hash">
virtual long do_hash( const charT* low, const charT* high) const;</a>

<a href="collname.htm#do-transform">
virtual string_type do_transform(const charT* low, const charT* high) const;</a>

</pre>
<hr>
<a name="class-descrip"><h3>Class Description</h3></a>
<p>
The collate_byname template class describes an object that can serve as a
locale facet of type collate&lt&charT&gt;. Its behavior is determined by the named
locale. 
</p>

<hr>
<pre>
<a name="collate-byname">
Method             collate_byname()</a>

Access             Public

Classification     Constructor

Syntax             explicit collate_byname(const char *s, 
                                           size_t refs = 0);

Parameters         <em>s</em> is the name of the named locale.

                   <em>refs</em>, if the refs argument = 0 then the destruction 
                   of the object is delegated to the locale or locales 
                   which contain it. If refs = 1 then the object must 
                   be explicitly deleted. The locale will not delete it. 
                   The object can then be maintained across the lifetime 
                   of multiple locales.


Return Type        None
</pre>
<h3>Description</h3>
<p>
This constructor constructs a collate_byname facet object.
</p>
<hr>

<pre>
<a name="~collate-byname">
Method             collate_byname()</a>

Access             Protected

Classification     Destructor

Syntax             ~collate_byname();

Parameters         None

Returns            None
</pre>
<h3>Description</h3>
<p>
The destructor destroys a collate_byname facet object.
</p>
<hr>

<pre>
<a name="do-compare">
Method             do_compare()</a>

Access             Protected

Classification     Accessor

Syntax             virtual int do_compare(const charT* low1, 
                                          const charT* high1,
                                          const charT* low2, 
                                          const charT* high2) const;

Parameters         <em>low1</em> is the beginning of the first string's 
                   character sequence.

                   <em>high1</em> is the end of the first string's 
                   character sequence.

                   <em>low2</em> is the beginning of the second string's 
                   character sequence.

                   <em>high2</em> is the end of the second string's character 
                   sequence.

Return Type        int
</pre>

<h3>Description</h3>
<p>
The compare() method compares the sequence at
[low1, high1) with the sequence at [low2, high2). It performs a
lexicographical comparison. It returns -1 if the first sequence compares
less than the second sequence. It returns 1 if the second sequence compares
less. The function returns zero otherwise.
</p>
<hr>
<pre>
<a name="do-hash">
Method             do_hash()</a>

Access             Protected

Classification     Accessor

Syntax             virtual long do_hash(const charT* low, 
                                        const charT* high) const;

Parameters         <em>low</em> is the beginning of the string's character 
                   sequence.

                   <em>high</em> is the end of the string's character sequence.


Return Type        long
</pre>
<h3>Description</h3>
<p>
The do_hash() method returns an integer derived
from the values of the elements in the string's character sequence.
</p>
<hr>
<pre>
<a name="do-transform">
Method             do_transform()</a>

Access             Protected

Classification     Accessor

Syntax             virtual string_type do_transform(const charT* low,
                                                    const charT* high) const;

Parameters         <em>low</em> is the beginning of the string's character 
                   sequence.

                   <em>high</em> is the end of the string's character sequence.

Return Type        string_type
</pre>
<h3>Description</h3>
<p>
The do_transfom() method returns a
basic_string&lt;charT&gt; object that when compared lexicographically with the
result of calling the transform() member function on another string will
produce the same result as calling do_compare() on the same two strings.
</p>
<hr>

<a name="crd"><h2>The Class Relationship Diagram for collate_byname</h2></a>
<img src="collname.gif">
<hr>
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