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[Bug c/25801] bad diagnostic for increment/decrement of pointer to incomplete array
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 16 Jan 2006 01:25:15 -0000
- Subject: [Bug c/25801] bad diagnostic for increment/decrement of pointer to incomplete array
- References: <bug-25801-230@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #1 from pinskia at gcc dot gnu dot org 2006-01-16 01:25 -------
The problem with the first error message is obvious where it goes wrong (in
c-typeck.c):
if (!COMPLETE_OR_VOID_TYPE_P (TREE_TYPE (result_type)))
{
if (code == PREINCREMENT_EXPR || code == POSTINCREMENT_EXPR)
error ("increment of pointer to unknown structure");
else
error ("decrement of pointer to unknown structure");
The second one comes from calling c_size_in_bytes. It seems like we can remove
the error call from c_size_in_bytes as the other place were we call it, we
check for a imcomplete type right before calling it.
Oh and the second error message also happens with the struct case too.
Both are these problems are not a regression as far as I can tell as both wrong
error messages are in 2.95.3.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |minor
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |diagnostic
Known to fail| |2.95.3 3.3.1 3.0.4 3.4.0
| |4.0.0 4.1.0 4.2.0
Last reconfirmed|0000-00-00 00:00:00 |2006-01-16 01:25:15
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25801