de/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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