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* c-typeck.c (build_array_ref): Don't complain about non-lvalue
	arrays in C99.  Don't try to look at DECL_REGISTER of a
	COMPONENT_REF.  Don't complain twice about the same error.

In gcc/testsuite/:
	* gcc.dg/c99-array-lval-1.c: The test on line 14 now passes.

From-SVN: r35666
This commit is contained in:
Geoff Keating 2000-08-13 21:31:09 +00:00 committed by Geoffrey Keating
parent acffa7c4f8
commit 05273f087b
4 changed files with 11 additions and 9 deletions
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4
gcc/ChangeLog
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@ -1,5 +1,9 @@
2000-08-13 Geoff Keating <geoffk@cygnus.com>
* c-typeck.c (build_array_ref): Don't complain about non-lvalue
arrays in C99. Don't try to look at DECL_REGISTER of a
COMPONENT_REF. Don't complain twice about the same error.
* fixinc/inclhack.def (aix_pthread): New fix.
(aix_sysmachine): New fix.
* fixinc/fixincl.x: Regenerate.

10
gcc/c-typeck.c
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@ -1315,20 +1315,14 @@ build_array_ref (array, index)
return error_mark_node;
}
if (pedantic && !lvalue_p (array))
{
if (DECL_REGISTER (array))
pedwarn ("ISO C forbids subscripting `register' array");
else
pedwarn ("ISO C89 forbids subscripting non-lvalue array");
}
if (pedantic)
{
tree foo = array;
while (TREE_CODE (foo) == COMPONENT_REF)
foo = TREE_OPERAND (foo, 0);
if (TREE_CODE (foo) == VAR_DECL && DECL_REGISTER (foo))
pedwarn ("ISO C forbids subscripting `register' array");
else if (! flag_isoc99 && ! lvalue_p (foo))
pedwarn ("ISO C89 forbids subscripting non-lvalue array");
}

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2000-08-13 Geoff Keating <geoffk@cygnus.com>
* gcc.dg/c99-array-lval-1.c: The test on line 14 now passes.
2000-08-11 Nathan Sidwell <nathan@codesourcery.com>
* g++.old-deja/g++.pt/explicit81.C: New test.

2
gcc/testsuite/gcc.dg/c99-array-lval-1.c
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@ -11,7 +11,7 @@ void
bar (void)
{
char *t;
(foo ()).c[0]; /* { dg-bogus "non-lvalue" "array not decaying to lvalue" { xfail *-*-* } } */
(foo ()).c[0]; /* { dg-bogus "non-lvalue" "array not decaying to lvalue" } */
t = (foo ()).c; /* { dg-bogus "non-lvalue" "array not decaying to lvalue" { xfail *-*-* } } */
(foo ()).c + 1; /* { dg-bogus "non-lvalue" "array not decaying to lvalue" { xfail *-*-* } } */
}