PR 23572 warnings for out of range floating-point constants

Richard Henderson rth@redhat.com
Tue Mar 20 20:00:00 GMT 2007


On Wed, Mar 14, 2007 at 06:13:38PM +0000, Manuel López-Ibáñez wrote:
> +  /* We also give a warning if the value underflows.  */
> +  if (REAL_VALUES_IDENTICAL (real, dconst0) 
> +      && !REAL_VALUES_IDENTICAL (realvoidmode, dconst0)) 
> +    warning (OPT_Woverflow, "floating constant exceeds range of %qT", type);

"exceeds" is misleading here.

Also, I think you should be changing the real.c routines a bit here,
as 1e-1000000000 won't be detected, since that underflows inside the
string parser.


r~



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