The following code is valid according to C99:
void * restrict const a[2];
void * restrict const (*p2)[2];
void foo(void) {
p2 = &a;
}
However GCC complains with:
a.c: In function 'foo':
a.c:14:7: warning: assignment from incompatible pointer type
If either "const" or "restrict" (or both) is omitted from the declaration of
"a" and "p", no warning is generated.
Despite the warning, code generation and optimization behave properly.
FYI, Clang 1.0.2 accepts this code without warning.
--
Summary: Bogus warning when assigning pointer-to-array with both
"const" and "restrict"
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: r dot c dot poss at uva dot nl
GCC build triplet: x86_64-apple-darwin10
GCC host triplet: x86_64-apple-darwin10
GCC target triplet: x86_64-apple-darwin10
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44322
