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N3757

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[SVN r85538]
This commit is contained in:
Emil Dotchevski
2013-08-31 23:24:40 +00:00
parent 831f73599a
commit e97bcb4c56
4 changed files with 121 additions and 1 deletions
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3
test/Jamfile.v2
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@ -1,6 +1,6 @@
# Boost Exception Library test Jamfile
#
# Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc.
# Copyright (c) 2006-2013 Emil Dotchevski and Reverge Studios, Inc.
#
# Distributed under the Boost Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
@ -42,6 +42,7 @@ run no_exceptions_test.cpp : : : <exception-handling>off ;
run errinfos_test.cpp ;
run exception_ptr_test.cpp/<define>BOOST_ENABLE_NON_INTRUSIVE_EXCEPTION_PTR ../../thread/src/tss_null.cpp /boost/exception /boost//thread : : : <threading>multi : non_intrusive_exception_ptr_test ;
run exception_ptr_test.cpp ../../thread/src/tss_null.cpp /boost//thread : : : <threading>multi ;
run N3757_test.cpp ;
compile-fail exception_fail.cpp ;
compile-fail throw_exception_fail.cpp ;

67
test/N3757_test.cpp Normal file
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@ -0,0 +1,67 @@
//Copyright (c) 2006-2013 Emil Dotchevski and Reverge Studios, Inc.
//Distributed under the Boost Software License, Version 1.0. (See accompanying
//file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//This file tests the N3757 syntax for adding error info to std::exception, which is
//different from the syntax used by Boost Exception.
#include <boost/exception/N3757.hpp>
#include <boost/exception/diagnostic_information.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <ostream>
struct tag1 { typedef int type; };
struct tag2 { typedef std::string type; };
struct tag3 { typedef int type; };
struct my_error_code { int ec; my_error_code(int ec):ec(ec){ } };
struct tag_error_code { typedef my_error_code type; };
bool my_error_code_to_string_called=false;
std::ostream &
operator<<( std::ostream & s, my_error_code const & x )
{
my_error_code_to_string_called=true;
return s << "my_error_code(" << x.ec << ')';
}
struct my_exception: virtual std::exception, virtual boost::exception { };
int
main()
{
try
{
throw my_exception();
}
catch(
boost::exception & e )
{
e.set<tag1>(42);
e.set<tag2>("42");
e.set<tag_error_code>(42); //Implicit conversion
try
{
throw;
}
catch(
my_exception & e )
{
BOOST_TEST(e.get<tag1>() && *e.get<tag1>()==42);
BOOST_TEST(e.get<tag2>() && *e.get<tag2>()=="42");
BOOST_TEST(!e.get<tag3>());
BOOST_TEST(e.get<tag_error_code>() && e.get<tag_error_code>()->ec==42);
//Below we're verifying that an error code wrapped in a user-defined type
//invokes the correct op<< to convert the error code to string.
//Note that N3757 diagnostic_information uses different syntax, it is a
//member of of std::exception.
std::string di=boost::diagnostic_information(e);
BOOST_TEST(!di.empty());
BOOST_TEST(my_error_code_to_string_called);
}
}
return boost::report_errors();
}