[Bug c/16667] New: GCC allows invalid syntax in C99 designated initializers

[Bug c/16667] New: GCC allows invalid syntax in C99 designated initializers

[segher at kernel dot crashing dot org]

GCC silently accepts the following invalid code (with -Wall -W, any optimization level,
whether C99 or gnu99 mode is asked for or not):

-- snip --
struct x {
        int a;
        float b;
};

struct x bla = { .a 42 };
-- snip --

(it should be   .a = 42)

-- 
           Summary: GCC allows invalid syntax in C99 designated initializers
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: segher at kernel dot crashing dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16667

[Bug c/16667] GCC allows invalid syntax in C99 designated initializers

[segher at kernel dot crashing dot org]

------- Additional Comments From segher at kernel dot crashing dot org  2004-07-22 06:06 -------
I just discovered that with -pedantic GCC outputs the following warning:

warning: obsolete use of designated initializer without `='

Perhaps this should be unconditional on -pedantic?  Or better yet, upgraded
to an error.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16667

[Bug c/16667] GCC allows invalid syntax in C99 designated initializers

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-07-22 06:27 -------
Confirmed.
A proposed patch is here: <http://gcc.gnu.org/ml/gcc-patches/2003-02/msg01146.html> but it 
needed some work.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |diagnostic
   Last reconfirmed|0000-00-00 00:00:00         |2004-07-22 06:27:07
               date|                            |
            Version|unknown                     |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16667

[Bug c/16667] GCC allows invalid syntax in C99 designated initializers

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-10-25 22:23 -------
Subject: Bug 16667

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	jsm28@gcc.gnu.org	2004-10-25 22:23:08

Modified files:
	gcc            : ChangeLog c-parse.in 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: init-desig-obs-1.c init-desig-obs-2.c 
	                      init-desig-obs-3.c 

Log message:
	PR c/16667
	* c-parse.in (array_designator): New.
	(designator): Use it.
	(initelt): Only permit array_designator without '=', not ".foo".
	
	testsuite:
	* gcc.dg/init-desig-obs-1.c, gcc.dg/init-desig-obs-2.c,
	gcc.dg/init-desig-obs-3.c: New tests.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.6014&r2=2.6015
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-parse.in.diff?cvsroot=gcc&r1=1.250&r2=1.251
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.4494&r2=1.4495
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/init-desig-obs-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/init-desig-obs-2.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/init-desig-obs-3.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16667

[Bug c/16667] GCC allows invalid syntax in C99 designated initializers

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-10-25 22:25 -------
Fixed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16667