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re PR c/14517 (change in behaviour wrt duplicate qualifiers) 

PR c/14517
        * c-decl.c (grokdeclarator): Don't warn for duplicate qualifiers
        except for pedantic c90 mode.

From-SVN: r79286
This commit is contained in:
Richard Henderson 2004-03-10 16:45:37 -08:00 committed by Richard Henderson
parent 8ab705be38
commit 28fca7e467
5 changed files with 61 additions and 13 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2004-03-10 Richard Henderson <rth@redhat.com>
PR c/14517
* c-decl.c (grokdeclarator): Don't warn for duplicate qualifiers
except for pedantic c90 mode.
2004-03-10 Kelley Cook <kcook@gcc.gnu.org>
* configure.ac: Bump AC_PREREQ to 2.59.

32
gcc/c-decl.c
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@ -3372,7 +3372,7 @@ grokdeclarator (tree declarator, tree declspecs,
{
if (i == RID_CONST || i == RID_VOLATILE || i == RID_RESTRICT)
{
if (!flag_isoc99)
if (pedantic && !flag_isoc99)
pedwarn ("duplicate `%s'", IDENTIFIER_POINTER (id));
}
else
@ -3629,12 +3629,15 @@ grokdeclarator (tree declarator, tree declspecs,
volatilep
= !! (specbits & 1 << (int) RID_VOLATILE) + TYPE_VOLATILE (element_type);
inlinep = !! (specbits & (1 << (int) RID_INLINE));
if (constp > 1 && ! flag_isoc99)
pedwarn ("duplicate `const'");
if (restrictp > 1 && ! flag_isoc99)
pedwarn ("duplicate `restrict'");
if (volatilep > 1 && ! flag_isoc99)
pedwarn ("duplicate `volatile'");
if (pedantic && !flag_isoc99)
{
if (constp > 1)
pedwarn ("duplicate `const'");
if (restrictp > 1)
pedwarn ("duplicate `restrict'");
if (volatilep > 1)
pedwarn ("duplicate `volatile'");
}
if (! flag_gen_aux_info && (TYPE_QUALS (type)))
type = TYPE_MAIN_VARIANT (type);
type_quals = ((constp ? TYPE_QUAL_CONST : 0)
@ -4087,12 +4090,15 @@ grokdeclarator (tree declarator, tree declspecs,
if (erred)
error ("invalid type modifier within pointer declarator");
if (constp > 1 && ! flag_isoc99)
pedwarn ("duplicate `const'");
if (volatilep > 1 && ! flag_isoc99)
pedwarn ("duplicate `volatile'");
if (restrictp > 1 && ! flag_isoc99)
pedwarn ("duplicate `restrict'");
if (pedantic && !flag_isoc99)
{
if (constp > 1)
pedwarn ("duplicate `const'");
if (volatilep > 1)
pedwarn ("duplicate `volatile'");
if (restrictp > 1)
pedwarn ("duplicate `restrict'");
}
type_quals = ((constp ? TYPE_QUAL_CONST : 0)
| (restrictp ? TYPE_QUAL_RESTRICT : 0)

12
gcc/testsuite/gcc.dg/c90-dupqual-1.c Normal file
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@ -0,0 +1,12 @@
/* { dg-do compile } */
/* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
typedef const int CI;
const const int c1; /* { dg-error "duplicate" } */
const CI c2; /* { dg-error "duplicate" } */
const CI *c3; /* { dg-error "duplicate" } */
typedef volatile int VI;
volatile volatile int v1; /* { dg-error "duplicate" } */
volatile VI v2; /* { dg-error "duplicate" } */
volatile VI *v3; /* { dg-error "duplicate" } */

12
gcc/testsuite/gcc.dg/c99-dupqual-1.c Normal file
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@ -0,0 +1,12 @@
/* { dg-do compile } */
/* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
typedef const int CI;
const const int c1; /* { dg-bogus "duplicate" } */
const CI c2; /* { dg-bogus "duplicate" } */
const CI *c3; /* { dg-bogus "duplicate" } */
typedef volatile int VI;
volatile volatile int v1; /* { dg-bogus "duplicate" } */
volatile VI v2; /* { dg-bogus "duplicate" } */
volatile VI *v3; /* { dg-bogus "duplicate" } */

12
gcc/testsuite/gcc.dg/gnu89-dupqual-1.c Normal file
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@ -0,0 +1,12 @@
/* { dg-do compile } */
/* { dg-options "-std=gnu89 -Werror" } */
typedef const int CI;
const const int c1; /* { dg-bogus "duplicate" } */
const CI c2; /* { dg-bogus "duplicate" } */
const CI *c3; /* { dg-bogus "duplicate" } */
typedef volatile int VI;
volatile volatile int v1; /* { dg-bogus "duplicate" } */
volatile VI v2; /* { dg-bogus "duplicate" } */
volatile VI *v3; /* { dg-bogus "duplicate" } */