[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: scm_with_continuation_barrier returning #f on throws ?
From: |
Andy Wingo |
Subject: |
Re: scm_with_continuation_barrier returning #f on throws ? |
Date: |
Sat, 25 Sep 2010 16:36:19 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/23.2 (gnu/linux) |
Hi Cedric,
On Mon 06 Sep 2010 13:20, Cedric Cellier <address@hidden> writes:
> SCM res = scm_with_guile(load_file, "a_file_that_doesnt_exist");
This statement is ill-formed, because you shouldn't have references to
SCM objects outside of Guile. This is indicated by scm_with_guile's
return value, which is void* and not SCM.
The docs about scm_with_continuation_barrier are correct; it does indeed
return #f on a throw. But scm_with_guile uses
scm_c_with_continuation_barrier, which is different, because it returns
a C value, a void*. The error case there has it return NULL.
Regards,
Andy
--
http://wingolog.org/