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johnpye |
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/* ASCEND modelling environment |
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Copyright (C) 1997 Benjamin Andrew Allan |
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Copyright (C) 2006 Carnegie Mellon University |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2, or (at your option) |
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any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 59 Temple Place - Suite 330, |
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Boston, MA 02111-1307, USA. |
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*//* @file |
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Some nice syntax for exceptions in C. |
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See http://www.swig.org/Doc1.1/HTML/Exceptions.html#n3 |
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Note that you will enter a world of pain if you attempt to nest these |
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try...catch statements. |
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Usage example from the above link |
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@CODE |
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try { |
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$function |
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} catch(RangeError) { |
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croak("Range Error"); |
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} catch(DivisionByZero) { |
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croak("Division by zero"); |
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} catch(OutOfMemory) { |
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croak("Out of memory"); |
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} finally { |
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croak("Unknown exception"); |
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} |
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@ENDCODE |
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*/ |
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#ifndef ASC_EXCEPT_H |
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#define ASC_EXCEPT_H |
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/* File : except.h */ |
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#include <setjmp.h> |
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extern jmp_buf exception_buffer; |
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extern int exception_status; |
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#define TRY if((exception_status = setjmp(exception_buffer)) == 0) |
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#define CATCH(val) else if(exception_status == val) |
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#define THROW(val) longjmp(exception_buffer,val) |
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#define FINALLY else |
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/* Exception codes */ |
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#define RangeError 1 |
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#define DivisionByZero 2 |
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#define OutOfMemory 3 |
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/* #define ASC_JMP_INFO */ |
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/**< Whether to store additional information before making a setjmp call */ |
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#ifndef ASC_JMP_INFO |
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# define SETJMP setjmp |
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# define LONGJMP longjmp |
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# define SIGNAL signal |
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# define JMP_BUF jmp_buf |
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#else |
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# define SETJMP(ENV) (\ |
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CONSOLE_DEBUG("SETJMP at %s:%d (%s=%p)",__FILE__,__LINE__,#ENV,ENV.jmp)\ |
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,ENV.filename = __FILE__, ENV.line = __LINE__, ENV.func = __FUNCTION__\ |
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,ENV.varname = #ENV\ |
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, setjmp(ENV.jmp)\ |
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) |
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# define LONGJMP(ENV,VAL) (\ |
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CONSOLE_DEBUG("LONGJMP to %s:%d (%s) (%s=%p)",ENV.filename,ENV.line,ENV.func,ENV.varname,ENV.jmp)\ |
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, longjmp(ENV.jmp, VAL)\ |
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) |
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typedef struct{ |
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jmp_buf jmp; |
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const char *filename; |
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int line; |
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const char *func; |
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const char *varname; |
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} asc_jmp_buf; |
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#define JMP_BUF asc_jmp_buf |
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#define SIGNAL(SIG,HANDLER) (CONSOLE_DEBUG("SIGNAL(%d,%s)",SIG,#HANDLER),signal(SIG,HANDLER)) |
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#endif |
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#endif |
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