46 lines
1.1 KiB
C++
46 lines
1.1 KiB
C++
//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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//This example shows how to add arbitrary data to active exception objects.
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#include <boost/exception/all.hpp>
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#include <boost/shared_ptr.hpp>
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#include <stdio.h>
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#include <errno.h>
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//
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struct file_read_error: virtual boost::exception { };
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void
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file_read( FILE * f, void * buffer, size_t size )
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{
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if( size!=fread(buffer,1,size,f) )
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throw file_read_error() << boost::errinfo_errno(errno);
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}
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//
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boost::shared_ptr<FILE> file_open( char const * file_name, char const * mode );
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void file_read( FILE * f, void * buffer, size_t size );
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void
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parse_file( char const * file_name )
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{
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boost::shared_ptr<FILE> f = file_open(file_name,"rb");
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assert(f);
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try
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{
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char buf[1024];
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file_read( f.get(), buf, sizeof(buf) );
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}
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catch(
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boost::exception & e )
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{
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e << boost::errinfo_file_name(file_name);
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throw;
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}
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}
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