------- Comment #3 from pinskia at gmail dot com 2010-07-15 09:19 -------
Subject: Re: Optimizer doesn't see setjmp()
On Jul 15, 2010, at 2:15 AM, "cm1 at mumac dot de" <gcc-bugzi...@gcc.gnu.org
> wrote:
>
>
> ------- Comment #1 from cm1 at mumac dot de 2010-07-15 09:15 -------
> Sorry, I edited the contents of the precompiler output to make it
> more readable
> and messed up the auto variable name. Please use this code:
>
> #include <stdlib.h>
> #include <stdio.h>
> #include <setjmp.h>
>
> #define EXC_TRY 1
> #define EXC_CATCH 2
>
> func()
> {
> const char *p = NULL; /*** auto variable
> ***/
IRRC you need volatile here as defined by the c standard.
> {
> jmp_buf exc_jmp_buf;
> int exc_state;
>
> if (setjmp(exc_jmp_buf) == 0) { /*** setjmp() ***/
> exc_state = EXC_TRY;
> } else {
> exc_state = EXC_CATCH;
> }
>
> if (exc_state == EXC_TRY) { /*** TRY BLOCK ***/
> p = "some value";
> }
>
> if (exc_state == EXC_CATCH) { /*** CATCH BLOCK
> ***/
> puts(p);
> }
> }
> }
>
>
> --
>
>
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44947
>
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44947
