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c-decl.c (grokdeclarator): Make error for duplicate type qualifiers into a pedwarn, disabled for C99.

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* c-decl.c (grokdeclarator): Make error for duplicate type
	qualifiers into a pedwarn, disabled for C99.

testsuite:
	* gcc.dg/c90-idem-qual-2.c, gcc.dg/c99-idem-qual-2.c: New tests.

From-SVN: r58983
This commit is contained in:
Joseph Myers 2002-11-10 16:24:26 +00:00 • committed by Joseph Myers
parent d663b76d17
commit 04e6db94f8
5 changed files with 31 additions and 1 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2002-11-10 Joseph S. Myers <jsm@polyomino.org.uk>
* c-decl.c (grokdeclarator): Make error for duplicate type
qualifiers into a pedwarn, disabled for C99.
2002-11-10 Hans-Peter Nilsson <hp@bitrange.com>
* config/mmix/mmix.h (FUNCTION_ARG_CALLEE_COPIES): Define the same

10
gcc/c-decl.c
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@ -3541,7 +3541,15 @@ grokdeclarator (declarator, declspecs, decl_context, initialized)
}
}
else if (specbits & (1 << (int) i))
error ("duplicate `%s'", IDENTIFIER_POINTER (id));
{
if (i == RID_CONST || i == RID_VOLATILE || i == RID_RESTRICT)
{
if (!flag_isoc99)
pedwarn ("duplicate `%s'", IDENTIFIER_POINTER (id));
}
else
error ("duplicate `%s'", IDENTIFIER_POINTER (id));
}
/* Diagnose "__thread extern". Recall that this list
is in the reverse order seen in the text. */

4
gcc/testsuite/ChangeLog
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@ -1,3 +1,7 @@
2002-11-10 Joseph S. Myers <jsm@polyomino.org.uk>
* gcc.dg/c90-idem-qual-2.c, gcc.dg/c99-idem-qual-2.c: New tests.
2002-11-09 Hans-Peter Nilsson <hp@bitrange.com>
* lib/compat.exp (compat-execute): Fix logic error in last

7
gcc/testsuite/gcc.dg/c90-idem-qual-2.c Normal file
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@ -0,0 +1,7 @@
/* Test for idempotent type qualifiers: in C99 only. Test "const const". */
/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
/* { dg-do compile } */
/* { dg-options "-std=iso9899:1990 -pedantic-errors" } */
const const int foo; /* { dg-bogus "warning" "warning in place of error" } */
/* { dg-error "duplicate" "duplicate type qualifier error" { target *-*-* } 6 } */

6
gcc/testsuite/gcc.dg/c99-idem-qual-2.c Normal file
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@ -0,0 +1,6 @@
/* Test for idempotent type qualifiers: in C99 only. Test "const const". */
/* Origin: Joseph Myers <jsm28@cam.ac.uk> */
/* { dg-do compile } */
/* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
const const int foo; /* { dg-bogus "duplicate" "duplicate type qualifier error" } */