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Re: Boot-to-Guile!
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From: |
Ludovic Courtès |
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Subject: |
Re: Boot-to-Guile! |
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Date: |
Sat, 16 Feb 2013 18:38:05 +0100 |
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User-agent: |
Gnus/5.130005 (Ma Gnus v0.5) Emacs/24.2 (gnu/linux) |
Mike Gran <address@hidden> skribis:
> Here's a fun message specific to your hack.
>
> scheme@(guile-user)> (getgroups)
> ERROR: In procedure getgroups:
> ERROR: In procedure getgroups: Success
Heh, funny. :-)
Actually you found a bug, fixed like this:
diff --git a/libguile/posix.c b/libguile/posix.c
index 324f21b..52ade13 100644
--- a/libguile/posix.c
+++ b/libguile/posix.c
@@ -265,8 +265,10 @@ SCM_DEFINE (scm_getgroups, "getgroups", 0, 0, 0,
GETGROUPS_T *groups;
ngroups = getgroups (0, NULL);
- if (ngroups <= 0)
+ if (ngroups < 0)
SCM_SYSERROR;
+ else if (ngroups == 0)
+ return scm_c_make_vector (0, SCM_BOOL_F);
size = ngroups * sizeof (GETGROUPS_T);
groups = scm_malloc (size);
Thanks!
Ludo’.