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<TITLE>boost::execution_exception</TITLE>
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<DIV class="header"> <A href="../../index.html">Boost.Test</A> > <A href="../index.html">Components</A> > <A href="index.html">The
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Execution Monitor</A> > <SPAN class="current_article">boost::execution_exception</SPAN> </DIV>
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<DIV class="body"> <IMG src='../../btl.gif' width='252' height='43' alt="Boost Test logo">
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<H1 class="subtitle">boost::execution_exception</H1>
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<P class="first_line_indented"> The boost::execution exception is an exception used by the Execution Monitor to report problems
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detected during controlled function run. It intentionally does not allocate any memory to be safe to use in case of lack
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of memory.</P>
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<PRE class="code"><SPAN class="reserv-word">class</SPAN> <SPAN class="new-term">execution_exception</SPAN> {
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<SPAN class="reserv-word">public</SPAN>:
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<SPAN class="reserv-word">enum</SPAN> error_code {
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cpp_exception_error, <SPAN class="comment">// see note (1) below</SPAN>
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user_error, // <SPAN class="comment">user reported nonfatal error</SPAN>
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system_error, <SPAN class="comment">// see note (2) below</SPAN>
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timeout_error, <SPAN class="comment">// only detectable on certain platforms</SPAN>
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user_fatal_error, <SPAN class="comment">// user reported fatal error</SPAN>
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system_fatal_error <SPAN class="comment">// see note (2) below</SPAN>
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};
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error_code code() <SPAN class="reserv-word">const</SPAN>; <SPAN class="comment">// use this method to get an error code for the exception</SPAN>
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<SPAN class="cpp-type">char</SPAN> <SPAN class="reserv-word">const</SPAN>* what() <SPAN class="reserv-word">const</SPAN>; <SPAN class="comment">// use this method to get an error message for the exception</SPAN>
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};
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</PRE>
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<P class="first_line_indented"> Note 1: Only uncaught C++ exceptions are treated as errors. If the application catches a
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C++ exception, it will never reach the <A href="execution_monitor.html">boost::execution_monitor</A>.</P>
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<P class="first_line_indented"> Note 2: These errors include UNIX signals and Windows structured exceptions.
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They are often initiated by hardware traps.</P>
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<P class="first_line_indented"> The implementation decides what is a fatal_system_exception and what is just a system_exception.
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Fatal errors are so likely to have corrupted machine state (like a stack overflow or addressing exception) that it is
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unreasonable to continue execution. </P>
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<DIV class="footer-body">
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<P>Copyright © <A href='mailto:rogeeff@emailaccount.com'>Gennadiy Rozental</A> 2001-2003.<BR>
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Permission to copy, use, modify, sell and distribute this document is granted provided this copyright notice appears
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in all copies. This document is provided "as is" without express or implied warranty and with no claim as to its suitability
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for any purpose.</P>
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<P>Revised: 9 June, 2003</P>
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