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49 lines
2.3 KiB
HTML
49 lines
2.3 KiB
HTML
<HTML>
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<HEAD>
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<TITLE>The Test Tools</TITLE>
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<LINK rel="stylesheet" type="text/css" href="../../../style/btl.css" media="screen">
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<LINK rel="stylesheet" type="text/css" href="../../../style/btl-print.css" media="print">
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<META http-equiv="Content-Language" content="en-us">
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<META http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<STYLE type="text/css">
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H4
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{
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margin: 0px;
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}
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</STYLE>
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</HEAD>
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<BODY>
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<DIV class="body">
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<H3>BOOST_WARN_MESSAGE( predicate, message )<BR>
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BOOST_CHECK_MESSAGE( predicate, message )<BR>
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BOOST_REQUIRE_MESSAGE( predicate, message )</H3>
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<P class="first-line-indented">This group of tools works the same way as their non _MESSAGE form. The
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only difference is that instead of generating an error/confirm message these tools use the supplied
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one.</P>
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<P class="first-line-indented">The tool's first parameter should be boolean predicate value that gets
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validated. The tool's second parameter is the message logged in case of check failure. The message
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argument can be of any type and can be a result of concatenations using the operator <<(). See
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<A href="BOOST_MESSAGE.html" target="descr">BOOST_MESSAGE</A> tool for complex message examples.</P>
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<H4>Example: test.cpp</H4>
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<PRE class="code"><SPAN class="cpp-type">int</SPAN> test.cpp( <SPAN class="cpp-type">int</SPAN>, <SPAN class="cpp-type">char</SPAN>* [] ) {
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<SPAN class="cpp-type">double</SPAN> res = sin( <SPAN class="literal">45</SPAN> );
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BOOST_CHECK_MESSAGE( res > <SPAN class="literal">3</SPAN>, <SPAN class="literal">"Why not?!?!"</SPAN> );
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<SPAN class="reserv-word">return</SPAN> <SPAN class="literal">0</SPAN>;
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}
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</PRE>
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<H4>Output:</H4>
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<P class="test-output">test.cpp(3) : error in test_main: Why not?!?! </P>
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<DIV class="see_also">
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<H4>See Also</H4>
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<P class="see-also-content"><A href="BOOST_CHECK.html" target="descr">BOOST_CHECK</A>, <A href="BOOST_WARN.html" target="descr">BOOST_WARN</A>,
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<A href="BOOST_REQUIRE.html" target="descr">BOOST_REQUIRE</A>, <A href="BOOST_MESSAGE.html" target="descr">BOOST_MESSAGE</A></P>
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</DIV>
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</DIV>
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</BODY>
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</HTML>
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<!-- Copyright Gennadiy Rozental 2001-2004.
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Distributed under the Boost Software License, Version 1.0.
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(See accompanying file LICENSE_1_0.txt or copy at www.boost.org/LICENSE_1_0.txt) -->
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