| 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> |
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| 2 | <HTML> |
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| 3 | <HEAD> |
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| 4 | <TITLE>OptimallyBuffered</TITLE> |
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| 5 | <LINK REL="stylesheet" HREF="../../../../boost.css"> |
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| 6 | <LINK REL="stylesheet" HREF="../theme/iostreams.css"> |
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| 7 | </HEAD> |
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| 8 | <BODY> |
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| 9 | |
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| 10 | <!-- Begin Banner --> |
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| 11 | |
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| 12 | <H1 CLASS="title">OptimallyBuffered</H1> |
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| 13 | <HR CLASS="banner"> |
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| 14 | |
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| 15 | <!-- End Banner --> |
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| 16 | |
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| 17 | <H2>Description</H2> |
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| 18 | |
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| 19 | <P> |
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| 20 | A OptimallyBuffered Filter or Device provides a way for the Iostreams library to determine the best size of buffer to allocate for it if the user doesn't explicitly specify a buffer size. |
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| 21 | </P> |
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| 22 | |
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| 23 | <H2>Refinement of</H2> |
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| 24 | |
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| 25 | <A NAME="types"></A> |
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| 26 | <H2>Associated Types</H2> |
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| 27 | |
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| 28 | <H2>Notation</H2> |
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| 29 | |
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| 30 | <TABLE CELLPADDING="2"> |
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| 31 | <TR><TD><CODE>O</CODE></TD><TD>-</TD><TD>A type which is a model of OptimallyBuffered</TD></TR> |
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| 32 | <TR><TD><CODE>o</CODE></TD><TD>-</TD><TD>Object of type <CODE>O</CODE></TD></TR> |
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| 33 | <TR><TD><CODE>io</CODE></TD><TD>-</TD><TD>Alias for namespace <CODE>boost::iostreams</CODE></TD></TR> |
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| 34 | </TABLE> |
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| 35 | |
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| 36 | <H2>Valid Expressions / Semantics</H2> |
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| 37 | |
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| 38 | <TABLE CELLPADDING="5" BORDER="1"> |
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| 39 | <TR><TH>Expression</TH><TH>Expression Type</TH><TH>Semantics</TH></TR> |
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| 40 | <TR> |
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| 41 | <TD> |
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| 42 | <PRE CLASS="plain_code"><CODE><A HREF="../functions/optimal_buffer_size.html">io::optimal_buffer_size</A>(o)</CODE></PRE> |
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| 43 | </TD> |
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| 44 | <TD><CODE>std::streamsize</CODE></TD> |
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| 45 | <TD>Returns the size of buffer that should be allocated for <CODE>o</CODE> if the user has not explicitly specified a buffer size.</TD> |
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| 46 | </TR> |
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| 47 | </TABLE> |
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| 48 | |
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| 49 | <H2>Models</H2> |
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| 50 | <UL> |
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| 51 | <LI><A HREF="../classes/counter.html"><CODE>basic_counter</CODE></A> |
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| 52 | </UL> |
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| 53 | |
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| 54 | <!-- Begin Footer --> |
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| 55 | |
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| 56 | <HR> |
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| 57 | <P CLASS="copyright">Revised |
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| 58 | <!--webbot bot="Timestamp" S-Type="EDITED" S-Format="%d %B, %Y" startspan --> |
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| 59 | 20 May, 2004 |
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| 60 | <!--webbot bot="Timestamp" endspan i-checksum="38504" --> |
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| 61 | </P> |
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| 62 | |
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| 63 | <P CLASS="copyright">© Copyright <A HREF="http://www.kangaroologic.com" TARGET="_top">Jonathan Turkanis</A>, 2004</P> |
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| 64 | <P CLASS="copyright"> |
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| 65 | 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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| 66 | </P> |
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| 67 | |
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| 68 | <!-- End Footer --> |
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| 69 | |
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| 70 | </BODY> |
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