[Bug c/28848] New: argument mismatch for late-prototyped function should be warning, not error

amylaar at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Fri Aug 25 19:09:00 GMT 2006


gcc.dg/noncompile/pr16876 should actually compile with a warning, rather
than fail with an error.

Some work on related issues has been done before in:
http://gcc.gnu.org/ml/gcc-patches/2004-10/msg00772.html

I suppose in this code:
    case ic_argpass:
    case ic_argpass_nonproto:
      /* ??? This should not be an error when inlining calls to
         unprototyped functions.  */
      error ("incompatible type for argument %d of %qE", parmnum, rname);
      break;
we should emit a warning rather than an error for the ic_argpass_nonproto case.
However, since we are then not set up to fail the compilation, we should not
return an error_mark_node, as this could mask subsequent actual
constraint violations;
Instead, we should return a value of the required type; e.g. we could
make NULL pointer of type pointer to type, and generate and INDIRECT_REF.


-- 
           Summary: argument mismatch for late-prototyped function should be
                    warning, not error
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: amylaar at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28848



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