95 lines
4.1 KiB
HTML
95 lines
4.1 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<HTML>
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<TITLE>Function Template imbue</TITLE>
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<LINK REL="stylesheet" HREF="../../../../boost.css">
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<LINK REL="stylesheet" HREF="../theme/iostreams.css">
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<BODY>
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<!-- Begin Banner -->
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<H1 CLASS="title">Function Template <CODE>imbue</CODE></H1>
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<HR CLASS="banner">
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<DL class="page-index">
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<DT><A href="#description">Description</A></DT>
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<DT><A href="#headers">Headers</A></DT>
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<DT><A href="#reference">Reference</A></DT>
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</DL>
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<A NAME="description"></A>
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<H2>Description</H2>
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<P>
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The function template <CODE>imbue</CODE> is invoked automatically by the Iostreams library when the <CODE>std::locale</CODE> of a library stream or stream buffer is set using <CODE>std::basic_ios::imbue</CODE> or <CODE>std::basic_streambuf::pubimbue</CODE>. When the <CODE>std::locale</CODE> of an instance of <A HREF="../guide/generic_streams.html#stream_buffer"><CODE>stream_buffer</CODE></A> or <A HREF="../guide/generic_streams.html#stream"><CODE>stream</CODE></A> is set, <CODE>imbue</CODE> is invoked on the underlying Device; when the <CODE>std::locale</CODE> of a <A HREF="../classes/filtering_streambuf.html"><CODE>filtering_streambuf</CODE></A> or <A HREF="../classes/filtering_streambuf.html"><CODE>filtering_stream</CODE></A> is set, <CODE>imbue</CODE> is invoked on each Filter and Device in the underlying chain.
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</P>
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<A NAME="headers"></A>
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<H2>Headers</H2>
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<DL>
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<DT><A CLASS="header" HREF="../../../../boost/iostreams/imbue.hpp"><CODE><boost/iostreams/detail/imbue.hpp></CODE></A></DT>
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<DT><A CLASS="header" HREF="../../../../boost/iostreams/operations.hpp"><CODE><boost/iostreams/detail/operations.hpp></CODE></A></DT>
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</DL>
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<A NAME="reference"></A>
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<H2>Reference</H2>
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<A NAME="synopsis"></A>
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<H4>Synopsis</H4>
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<PRE CLASS="broken_ie"><SPAN CLASS="keyword">namespace</SPAN> boost { <SPAN CLASS="keyword">namespace</SPAN> iostreams {
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<SPAN CLASS="keyword">template</SPAN><<SPAN CLASS="keyword">typename</SPAN> <A CLASS="documented" HREF="#template_params">T</A>>
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<SPAN CLASS="keyword">void</SPAN> <A CLASS="documented" HREF="#semantics">imbue</A>(T& t, <SPAN CLASS="keyword">const</SPAN> std::locale& loc);
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} } <SPAN CLASS="comment">// End namespace boost::io</SPAN></PRE>
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<A NAME="template_params"></A>
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<H4>Template Parameters</H4>
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<TABLE STYLE="margin-left:2em" BORDER=0 CELLPADDING=2>
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<TD VALIGN="top"><I>T</I></TD><TD WIDTH="2em" VALIGN="top">-</TD>
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<TD>A model of one of the <A HREF="../guide/concepts.html#filter_concepts">Filter</A> or <A HREF="../guide/concepts.html#device_concepts">Device</A> concepts</TD>
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</TR>
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</TABLE>
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<A NAME="semantics"></A>
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<H4>Semantics</H4>
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<P>The semantics of <CODE>imbue</CODE> for a Filter or Device type <CODE>T</CODE> depends on its <A HREF="../guide/traits.html#category">category</A> as follows:</P>
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<TABLE STYLE="margin-left:2em; margin-bottom:2em" BORDER=1 CELLPADDING=4>
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<TR><TH><CODE>category_of<T>::type</CODE></TH><TH>semantics</TH></TR>
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<TR>
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<TD VALIGN="top">Convertible to <A HREF="../guide/traits.html#category_tags"><CODE>streambuf_tag</CODE></A></TD>
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<TD>calls <CODE>t.pubimbue(loc)</CODE></TD>
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</TR>
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<TR>
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<TD VALIGN="top">Convertible to <A HREF="../guide/traits.html#category_tags"><CODE>localizable_tag</CODE></A> but not to <A HREF="../guide/traits.html#category_tags"><CODE>streambuf_tag</CODE></A></TD>
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<TD>calls <CODE>t.imbue(loc)</CODE></TD>
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</TR>
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<TR>
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<TD VALIGN="top"><I>otherwise</I></TD>
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<TD>no-op</TD>
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</TR>
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</TABLE>
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<HR>
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<P CLASS="copyright">© Copyright 2008 <a href="http://www.coderage.com/" target="_top">CodeRage, LLC</a><br/>© Copyright 2004-2007 <a href="https://www.boost.org/users/people/jonathan_turkanis.html" target="_top">Jonathan Turkanis</a></P>
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<P CLASS="copyright">
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Distributed under the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at <A HREF="http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</A>)
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