mirror of
https://github.com/boostorg/exception.git
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Ticket 6450 (thanks A Polukhin.)
[SVN r79033]
This commit is contained in:
@ -27,15 +27,15 @@
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#include <boost/current_function.hpp>
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#define <span class="RenoLink">BOOST_THROW_EXCEPTION</span>(x)\
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::boost::<span class="RenoLink"><a href="throw_exception.html">throw_exception</a></span>( ::boost::<span class="RenoLink"><a href="enable_error_info.html">enable_error_info</a></span>(x) <<\
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::boost::<span class="RenoLink"><a href="boost_exception_exception_hpp.html">throw_function</a></span>(BOOST_CURRENT_FUNCTION) <<\
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::boost::<span class="RenoLink"><a href="boost_exception_exception_hpp.html">throw_function</a></span>(<span class="RenoLink"><a href="configuration_macros.html">BOOST_THROW_EXCEPTION_CURRENT_FUNCTION</a></span>) <<\
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::boost::<span class="RenoLink"><a href="boost_exception_exception_hpp.html">throw_file</a></span>(__FILE__) <<\
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::boost::<span class="RenoLink"><a href="boost_exception_exception_hpp.html">throw_line</a></span>((int)__LINE__) )
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#else
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#define <span class="RenoLink">BOOST_THROW_EXCEPTION</span>(x) ::boost::<span class="RenoLink"><a href="throw_exception.html">throw_exception</a></span>(x)
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#endif</pre>
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</div></div><p>This macro takes an exception object, records BOOST_CURRENT_FUNCTION, __FILE__ and __LINE__ in it, and forwards it to <span class="RenoLink"><a href="throw_exception.html">throw_exception</a></span>. To recover this information at the catch site, use <span class="RenoLink"><a href="get_error_info.html">get_error_info</a></span>; the information is also included in the message returned by <span class="RenoLink"><a href="diagnostic_information.html">diagnostic_information</a></span>.</p>
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</div></div><p>This macro takes an exception object, records the current function name, __FILE__ and __LINE__ in it, and forwards it to <span class="RenoLink"><a href="throw_exception.html">throw_exception</a></span>. To recover this information at the catch site, use <span class="RenoLink"><a href="get_error_info.html">get_error_info</a></span>; the information is also included in the message returned by <span class="RenoLink"><a href="diagnostic_information.html">diagnostic_information</a></span>.</p>
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</div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
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See also: <span class="RenoPageList"><a href="boost-exception.html">Boost Exception</a> | <a href="boost_throw_exception_hpp.html">boost/throw_exception.hpp</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a></span>
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See also: <span class="RenoPageList"><a href="boost-exception.html">Boost Exception</a> | <a href="boost_throw_exception_hpp.html">boost/throw_exception.hpp</a> | <a href="configuration_macros.html">Configuration Macros</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a></span>
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</div>
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<!-- Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. -->
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<!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
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@ -28,10 +28,10 @@ namespace
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boost
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{
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<span class="RenoIncludeSPAN"> <span class="RenoIncludeSPAN">template <class ErrorInfo,class E>
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typename ErrorInfo::<span class="RenoLink"><a href="error_info_value_type.html">error_info::value_type</a></span> const * <span class="RenoLink"><a href="get_error_info.html">get_error_info</a></span>( E const & x );
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typename ErrorInfo::<span class="RenoLink"><a href="error_info::value_type">error_info::value_type</a></span> const * <span class="RenoLink"><a href="get_error_info">get_error_info</a></span>( E const & x );
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template <class ErrorInfo,class E>
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typename ErrorInfo::<span class="RenoLink"><a href="error_info_value_type.html">error_info::value_type</a></span> * <span class="RenoLink"><a href="get_error_info.html">get_error_info</a></span>( E & x );</span></span>
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typename ErrorInfo::<span class="RenoLink"><a href="error_info::value_type">error_info::value_type</a></span> * <span class="RenoLink"><a href="get_error_info">get_error_info</a></span>( E & x );</span></span>
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}</pre>
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</div></div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
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See also: <span class="RenoPageList"><a href="boost_exception_all_hpp.html">boost/exception/all.hpp</a> | <a href="error_info.html">error_info</a></span>
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@ -27,7 +27,7 @@
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#include <boost/current_function.hpp>
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#define <span class="RenoLink"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a></span>(x)\
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::boost::<span class="RenoLink"><a href="throw_exception.html">throw_exception</a></span>( ::boost::<span class="RenoLink"><a href="enable_error_info.html">enable_error_info</a></span>(x) <<\
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::boost::<span class="RenoLink"><a href="boost_exception_exception_hpp.html">throw_function</a></span>(BOOST_CURRENT_FUNCTION) <<\
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::boost::<span class="RenoLink"><a href="boost_exception_exception_hpp.html">throw_function</a></span>(<span class="RenoLink"><a href="configuration_macros.html">BOOST_THROW_EXCEPTION_CURRENT_FUNCTION</a></span>) <<\
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::boost::<span class="RenoLink"><a href="boost_exception_exception_hpp.html">throw_file</a></span>(__FILE__) <<\
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::boost::<span class="RenoLink"><a href="boost_exception_exception_hpp.html">throw_line</a></span>((int)__LINE__) )
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#else
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@ -32,8 +32,10 @@
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<p>Note that on some non-conformant compilers, for example MSVC 7.0 and older, as well as BCC, BOOST_EXCEPTION_DISABLE is implicitly defined in <span class="RenoLink"><a href="boost_throw_exception_hpp.html">boost/throw_exception.hpp</a></span>.</p>
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<p><b>BOOST_NO_EXCEPTIONS</b></p>
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<p>This macro disables exception handling in Boost, forwarding all exceptions to a user-defined non-template version of boost::<span class="RenoLink"><a href="throw_exception.html">throw_exception</a></span>. However, unless BOOST_EXCEPTION_DISABLE is also defined, users can still examine the exception object for any data added at the point of the throw, or use boost::<span class="RenoLink"><a href="diagnostic_information.html">diagnostic_information</a></span> (of course under BOOST_NO_EXCEPTIONS, the user-defined boost::throw_exception is not allowed to return to the caller.)</p>
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<p><b>BOOST_THROW_EXCEPTION_CURRENT_FUNCTION</b></p>
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<p>The <span class="RenoLink"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a></span> macro uses BOOST_THROW_EXCEPTION_CURRENT_FUNCTION to record the name of the current function in the exception object. Unless overridden by the user, BOOST_THROW_EXCEPTION_CURRENT_FUNCTION expands to BOOST_CURRENT_FUNCTION.</p>
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</div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
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See also: <span class="RenoPageList"><a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_all_hpp.html">boost/exception/all.hpp</a> | <a href="get_error_info.html">get_error_info</a></span>
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See also: <span class="RenoPageList"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a> | <a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_all_hpp.html">boost/exception/all.hpp</a> | <a href="get_error_info.html">get_error_info</a></span>
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</div>
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<!-- Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. -->
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<!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
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@ -71,7 +71,7 @@ std::exception::what: example_io error
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[struct boost::<span class="RenoLink"><a href="errinfo_file_name.html">errinfo_file_name</a></span>_ *] = tmp1.txt
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[struct boost::<span class="RenoLink"><a href="errinfo_file_open_mode.html">errinfo_file_open_mode</a></span>_ *] = rb</pre>
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</div></div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
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See also: <span class="RenoPageList"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a> | <a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_diagnostic_information_hpp.html">boost/exception/diagnostic_information.hpp</a> | <a href="configuration_macros.html">Configuration Macros</a> | <a href="current_exception_diagnostic_information.html">current_exception_diagnostic_information</a> | <a href="tutorial_diagnostic_information.html">Diagnostic Information</a> | <a href="diagnostic_information_what.html">diagnostic_information_what</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a> | <a href="motivation.html">Motivation</a> | <a href="throw_exception.html">throw_exception</a></span>
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See also: <span class="RenoPageList"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a> | <a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_diagnostic_information_hpp.html">boost/exception/diagnostic_information.hpp</a> | <a href="configuration_macros.html">Configuration Macros</a> | <a href="current_exception_diagnostic_information.html">current_exception_diagnostic_information</a> | <a href="tutorial_diagnostic_information.html">Diagnostic Information</a> | <a href="diagnostic_information_what.html">diagnostic_information_what</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a> | <a href="motivation.html">Motivation</a></span>
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</div>
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<!-- Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. -->
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<!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
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@ -48,7 +48,7 @@ throw boost::<span class="RenoLink">enable_current_exception</span>(my_exception
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<h4>Note:</h4>
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<p>Instead of using the throw keyword directly, it is preferable to call boost::<span class="RenoLink"><a href="throw_exception.html">throw_exception</a></span>. This is guaranteed to throw an exception that derives from boost::<span class="RenoLink"><a href="exception.html">exception</a></span> and supports the <span class="RenoLink"><a href="exception_ptr.html">exception_ptr</a></span> functionality.</p>
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</div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
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See also: <span class="RenoPageList"><a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_enable_current_exception_hpp.html">boost/exception/enable_current_exception.hpp</a> | <a href="configuration_macros.html">Configuration Macros</a> | <a href="copy_exception.html">copy_exception</a> | <a href="current_exception.html">current_exception</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a> | <a href="tutorial_exception_ptr.html">Transporting of Exceptions Between Threads</a> | <a href="throw_exception.html">throw_exception</a></span>
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See also: <span class="RenoPageList"><a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_enable_current_exception_hpp.html">boost/exception/enable_current_exception.hpp</a> | <a href="configuration_macros.html">Configuration Macros</a> | <a href="copy_exception.html">copy_exception</a> | <a href="current_exception.html">current_exception</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a> | <a href="tutorial_exception_ptr.html">Transporting of Exceptions Between Threads</a></span>
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</div>
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<!-- Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. -->
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<!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
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@ -37,7 +37,7 @@ boost
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<h4>Throws:</h4>
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<p>Nothing.</p>
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</div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
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See also: <span class="RenoPageList"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a> | <a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_enable_error_info_hpp.html">boost/exception/enable_error_info.hpp</a> | <a href="configuration_macros.html">Configuration Macros</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a> | <a href="tutorial_enable_error_info.html">Integrating Boost Exception in Existing Exception Class Hierarchies</a> | <a href="throw_exception.html">throw_exception</a></span>
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See also: <span class="RenoPageList"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a> | <a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_enable_error_info_hpp.html">boost/exception/enable_error_info.hpp</a> | <a href="configuration_macros.html">Configuration Macros</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a> | <a href="tutorial_enable_error_info.html">Integrating Boost Exception in Existing Exception Class Hierarchies</a></span>
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</div>
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<!-- Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. -->
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<!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
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@ -40,7 +40,7 @@ boost
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<p>To retrieve data from a boost::<span class="RenoLink">exception</span> object, use the <span class="RenoLink"><a href="get_error_info.html">get_error_info</a></span> function template.</p>
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</div><div class="RenoHR"><hr/></div>
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<h3>See Also:</h3>
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<div class="RenoPageList"><a href="configuration_macros.html">Configuration Macros</a> | <a href="current_exception.html">current_exception</a> | <a href="current_exception_diagnostic_information.html">current_exception_diagnostic_information</a> | <a href="tutorial_diagnostic_information.html">Diagnostic Information</a> | <a href="diagnostic_information.html">diagnostic_information</a> | <a href="diagnostic_information_what.html">diagnostic_information_what</a> | <a href="enable_current_exception.html">enable_current_exception</a> | <a href="enable_error_info.html">enable_error_info</a> | <a href="error_info.html">error_info</a> | <a href="exception_ptr.html">exception_ptr</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a> | <a href="get_error_info.html">get_error_info</a> | <a href="motivation.html">Motivation</a> | <a href="tutorial_transporting_data.html">Transporting of Arbitrary Data to the Catch Site</a> | <a href="tutorial_exception_ptr.html">Transporting of Exceptions Between Threads</a> | <a href="tuple_operator_shl.html">tuple/operator<<</a> | <a href="unknown_exception.html">unknown_exception</a></div>
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<div class="RenoPageList"><a href="configuration_macros.html">Configuration Macros</a> | <a href="current_exception.html">current_exception</a> | <a href="current_exception_diagnostic_information.html">current_exception_diagnostic_information</a> | <a href="tutorial_diagnostic_information.html">Diagnostic Information</a> | <a href="diagnostic_information.html">diagnostic_information</a> | <a href="diagnostic_information_what.html">diagnostic_information_what</a> | <a href="enable_current_exception.html">enable_current_exception</a> | <a href="enable_error_info.html">enable_error_info</a> | <a href="error_info.html">error_info</a> | <a href="exception_ptr.html">exception_ptr</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a> | <a href="get_error_info.html">get_error_info</a> | <a href="motivation.html">Motivation</a> | <a href="tutorial_transporting_data.html">Transporting of Arbitrary Data to the Catch Site</a> | <a href="tutorial_exception_ptr.html">Transporting of Exceptions Between Threads</a> | <a href="throw_exception.html">throw_exception</a> | <a href="tuple_operator_shl.html">tuple/operator<<</a> | <a href="unknown_exception.html">unknown_exception</a></div>
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<!-- Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. -->
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<!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
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<!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
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@ -40,7 +40,7 @@ boost
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<h4>Nesting of exceptions:</h4>
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<p>An <span class="RenoLink">exception_ptr</span> can be added as <span class="RenoLink"><a href="error_info.html">error_info</a></span> to any boost::<span class="RenoLink"><a href="exception.html">exception</a></span>. This is a convenient way to nest exceptions. There is no limit on the depth of the nesting, however cyclic references result in undefined behavior.</p>
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</div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
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See also: <span class="RenoPageList"><a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_errinfo_nested_exception_hpp.html">boost/exception/errinfo_nested_exception.hpp</a> | <a href="boost_exception_ptr_hpp.html">boost/exception_ptr.hpp</a> | <a href="copy_exception.html">copy_exception</a> | <a href="current_exception.html">current_exception</a> | <a href="diagnostic_information.html">diagnostic_information</a> | <a href="enable_current_exception.html">enable_current_exception</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a> | <a href="original_exception_type.html">original_exception_type</a> | <a href="rethrow_exception.html">rethrow_exception</a> | <a href="unknown_exception.html">unknown_exception</a></span>
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See also: <span class="RenoPageList"><a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_errinfo_nested_exception_hpp.html">boost/exception/errinfo_nested_exception.hpp</a> | <a href="boost_exception_ptr_hpp.html">boost/exception_ptr.hpp</a> | <a href="copy_exception.html">copy_exception</a> | <a href="current_exception.html">current_exception</a> | <a href="diagnostic_information.html">diagnostic_information</a> | <a href="enable_current_exception.html">enable_current_exception</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a> | <a href="original_exception_type.html">original_exception_type</a> | <a href="rethrow_exception.html">rethrow_exception</a> | <a href="throw_exception.html">throw_exception</a> | <a href="unknown_exception.html">unknown_exception</a></span>
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</div>
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<!-- Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. -->
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<!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
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@ -40,6 +40,9 @@
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<h3>What is the space overhead of the boost::exception base class?</h3>
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<p>The space overhead for the boost::exception data members is negligible in the context of exception handling. Throwing objects that derive from boost::<span class="RenoLink"><a href="exception.html">exception</a></span> does not by itself cause dynamic memory allocations.</p>
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<p>Deriving from boost::<span class="RenoLink"><a href="exception.html">exception</a></span> enables any data to be added to exceptions, which usually does allocate memory. However, this memory is reclaimed when the exception has been handled, and since typically user code does not allocate memory during the unrolling of the stack, adding error info to exceptions should not cause memory fragmentation.</p>
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<h3>What is the speed overhead of the boost::exception base class?</h3>
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<p>Throwing objects that derive from boost::exception does not have any speed overhead by itself.</p>
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<p>Deriving from boost::<span class="RenoLink"><a href="exception.html">exception</a></span> enables any data to be added to exceptions, which internally uses constructs that can be considered quite heavy (such as std::map and std::string.) This is still negligible compared to the typical overhead of throwing and handling of exceptions.</p>
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<h3>Should I use boost::throw_exception or BOOST_THROW_EXCEPTION or just throw?</h3>
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<p>The benefit of calling boost::<span class="RenoLink"><a href="throw_exception.html">throw_exception</a></span> instead of using throw directly is that it ensures that the emitted exception derives from boost::<span class="RenoLink"><a href="exception.html">exception</a></span> and that it is compatible with boost::<span class="RenoLink"><a href="current_exception.html">current_exception</a></span>.</p>
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<p>The <span class="RenoLink"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a></span> macro also results in a call to boost::<span class="RenoLink"><a href="throw_exception.html">throw_exception</a></span>, but in addition it records in the exception object the __FILE__ and __LINE__ of the throw, as well as the pretty name of the function that throws. This has virtually no overhead, yet enables boost::<span class="RenoLink"><a href="diagnostic_information.html">diagnostic_information</a></span> to compose a more useful, if not user-friendly message.</p>
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@ -85,7 +88,7 @@ throw e;</pre>
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<p>The intention here is to throw a file_open_error, however if <span class="RenoLink"><a href="exception_operator_shl.html">operator<<</a></span> fails to copy the std::string contained in the file_name <span class="RenoLink"><a href="error_info.html">error_info</a></span> wrapper, a std::bad_alloc could propagate instead. This behavior seems undesirable to some programmers.</p>
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<p>Bjarne Stroustrup, The C++ Programming Language, 3rd Edition, page 371:</p>
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<blockquote><p><i>"Throwing an exception requires an object to throw. A C++ implementation is required to have enough spare memory to be able to throw bad_alloc in case of memory exhaustion. However, it is possible that throwing some other exception will cause memory exhaustion."</i></p></blockquote>
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<p>So, an attempt to throw any exception may already result in propagating std::bad_alloc instead.</p>
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<p>Therefore, the language itself does not guarantee that an attempt to throw an exception is guaranteed to throw an object of the specified type; propagating a std::bad_alloc seems to be a possibility even outside of the scope of Boost Exception.</p>
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</div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
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See also: <span class="RenoPageList"><a href="boost-exception.html">Boost Exception</a> | <a href="motivation.html">Motivation</a></span>
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</div>
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|
@ -25,10 +25,10 @@
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boost
|
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{
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<span class="RenoIncludeSPAN"> template <class ErrorInfo,class E>
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typename ErrorInfo::<span class="RenoLink"><a href="error_info_value_type.html">error_info::value_type</a></span> const * get_error_info( E const & x );
|
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typename ErrorInfo::<span class="RenoLink"><a href="error_info::value_type">error_info::value_type</a></span> const * <span class="RenoLink"><a href="get_error_info">get_error_info</a></span>( E const & x );
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template <class ErrorInfo,class E>
|
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typename ErrorInfo::<span class="RenoLink"><a href="error_info_value_type.html">error_info::value_type</a></span> * get_error_info( E & x );</span>
|
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typename ErrorInfo::<span class="RenoLink"><a href="error_info::value_type">error_info::value_type</a></span> * <span class="RenoLink"><a href="get_error_info">get_error_info</a></span>( E & x );</span>
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}</pre>
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</div><h4>Requirements:</h4>
|
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<div><ul><li> ErrorInfo must be an instance of the <span class="RenoLink"><a href="error_info.html">error_info</a></span> template.</li>
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@ -43,7 +43,7 @@ boost
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<h4>Note:</h4>
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<p>The interface of <span class="RenoLink">get_error_info</span> may be affected by the build <span class="RenoLink"><a href="configuration_macros.html">configuration macros</a></span>.</p>
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</div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
|
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See also: <span class="RenoPageList"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a> | <a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_get_error_info_hpp.html">boost/exception/get_error_info.hpp</a> | <a href="configuration_macros.html">Configuration Macros</a> | <a href="current_exception.html">current_exception</a> | <a href="error_info.html">error_info</a> | <a href="exception.html">exception</a> | <a href="motivation.html">Motivation</a> | <a href="throw_exception.html">throw_exception</a></span>
|
||||
See also: <span class="RenoPageList"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a> | <a href="boost-exception.html">Boost Exception</a> | <a href="boost_exception_get_error_info_hpp.html">boost/exception/get_error_info.hpp</a> | <a href="configuration_macros.html">Configuration Macros</a> | <a href="current_exception.html">current_exception</a> | <a href="error_info.html">error_info</a> | <a href="exception.html">exception</a> | <a href="motivation.html">Motivation</a></span>
|
||||
</div>
|
||||
<!-- Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. -->
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<!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
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|
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Load Diff
@ -158,7 +158,7 @@ boost
|
||||
#include <boost/current_function.hpp>
|
||||
#define <span class="RenoLink"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a></span>(x)\
|
||||
::boost::<span class="RenoLink"><a href="throw_exception.html">throw_exception</a></span>( ::boost::<span class="RenoLink"><a href="enable_error_info.html">enable_error_info</a></span>(x) <<\
|
||||
::boost::<span class="RenoLink"><a href="boost_exception_exception_hpp.html">throw_function</a></span>(BOOST_CURRENT_FUNCTION) <<\
|
||||
::boost::<span class="RenoLink"><a href="boost_exception_exception_hpp.html">throw_function</a></span>(<span class="RenoLink"><a href="configuration_macros.html">BOOST_THROW_EXCEPTION_CURRENT_FUNCTION</a></span>) <<\
|
||||
::boost::<span class="RenoLink"><a href="boost_exception_exception_hpp.html">throw_file</a></span>(__FILE__) <<\
|
||||
::boost::<span class="RenoLink"><a href="boost_exception_exception_hpp.html">throw_line</a></span>((int)__LINE__) )
|
||||
#else
|
||||
|
@ -32,14 +32,17 @@ boost
|
||||
void <span class="RenoLink">throw_exception</span>( E const & e );
|
||||
#endif</span>
|
||||
}</pre>
|
||||
</div><h4>Requirements:</h4>
|
||||
<p>E must derive publicly from std::exception.</p>
|
||||
<h4>Effects:</h4>
|
||||
<div><ul><li> If BOOST_NO_EXCEPTIONS is not defined, boost::<span class="RenoLink">throw_exception</span>(e) is equivalent to throw boost::<span class="RenoLink"><a href="enable_current_exception.html">enable_current_exception</a></span>(boost::<span class="RenoLink"><a href="enable_error_info.html">enable_error_info</a></span>(e)), unless BOOST_EXCEPTION_DISABLE is defined, in which case boost::<span class="RenoLink">throw_exception</span>(e) is equivalent to throw e;</li>
|
||||
</div><h4>Effects:</h4>
|
||||
<div><ul><li> If BOOST_NO_EXCEPTIONS is not defined, boost::<span class="RenoLink">throw_exception</span>(e) throws an exception of unspecified type that derives publicly from E and from boost::<span class="RenoLink"><a href="exception.html">exception</a></span>.</li>
|
||||
<li> If BOOST_NO_EXCEPTIONS is defined, the function is left undefined, and the user is expected to supply an appropriate definition. Callers of <span class="RenoLink">throw_exception</span> are allowed to assume that the function never returns; therefore, if the user-defined <span class="RenoLink">throw_exception</span> returns, the behavior is undefined.</li>
|
||||
</ul></div>
|
||||
<h4>Note:</h4>
|
||||
<p>Under BOOST_NO_EXCEPTIONS, unless BOOST_EXCEPTION_DISABLE is also defined, users can examine the passed exception object using boost::<span class="RenoLink"><a href="get_error_info.html">get_error_info</a></span>, or format an automatic diagnostic message using boost::<span class="RenoLink"><a href="diagnostic_information.html">diagnostic_information</a></span>.</p>
|
||||
<h4>Requirements:</h4>
|
||||
<p>E must derive publicly from std::exception. E may or may not derive from boost::<span class="RenoLink"><a href="exception.html">exception</a></span>.</p>
|
||||
<h4>Notes:</h4>
|
||||
<div><ul><li> The emitted exception can be intercepted as E &, std::exception &, or boost::exception &.</li>
|
||||
<li> The emitted exception supports boost::<span class="RenoLink"><a href="exception_ptr.html">exception_ptr</a></span>.</li>
|
||||
<li> If BOOST_EXCEPTION_DISABLE is defined and BOOST_NO_EXCEPTIONS is not defined, boost::<span class="RenoLink">throw_exception</span>(e) equivalent to throw e.</li>
|
||||
</ul></div>
|
||||
</div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
|
||||
See also: <span class="RenoPageList"><a href="BOOST_THROW_EXCEPTION.html">BOOST_THROW_EXCEPTION</a> | <a href="boost-exception.html">Boost Exception</a> | <a href="boost_throw_exception_hpp.html">boost/throw_exception.hpp</a> | <a href="configuration_macros.html">Configuration Macros</a> | <a href="enable_current_exception.html">enable_current_exception</a> | <a href="frequently_asked_questions.html">Frequently Asked Questions</a> | <a href="tutorial_exception_ptr.html">Transporting of Exceptions Between Threads</a></span>
|
||||
</div>
|
||||
|
@ -41,8 +41,11 @@
|
||||
|
||||
#if !defined( BOOST_EXCEPTION_DISABLE )
|
||||
# include <boost/exception/exception.hpp>
|
||||
#if !defined(BOOST_THROW_EXCEPTION_CURRENT_FUNCTION)
|
||||
# include <boost/current_function.hpp>
|
||||
# define BOOST_THROW_EXCEPTION(x) ::boost::exception_detail::throw_exception_(x,BOOST_CURRENT_FUNCTION,__FILE__,__LINE__)
|
||||
# define BOOST_THROW_EXCEPTION_CURRENT_FUNCTION BOOST_CURRENT_FUNCTION
|
||||
#endif
|
||||
# define BOOST_THROW_EXCEPTION(x) ::boost::exception_detail::throw_exception_(x,BOOST_THROW_EXCEPTION_CURRENT_FUNCTION,__FILE__,__LINE__)
|
||||
#else
|
||||
# define BOOST_THROW_EXCEPTION(x) ::boost::throw_exception(x)
|
||||
#endif
|
||||
|
Reference in New Issue
Block a user