Re: PR 23572 warnings for out of range floating-point constants

["Manuel López-Ibáñez" <lopezibanez at gmail dot com>]

On 21 Jan 2007 13:38:25 -0600, Gabriel Dos Reis <gdr@cs.tamu.edu> wrote:
> "Joseph S. Myers" <joseph@codesourcery.com> writes:
>
> | The general issue is floating constants that are not exactly
> | representable.  Particular cases of interest are overflow, underflow and
> | hex constants (where C99 recommends a diagnostic for hex floating
> | constants that are not exactly representable); warning for such cases as
> | 0.1 being inexact is of less interest.
>
> Agreed.

I don't see how this has anything to do with my patch, but yes, I do agree.

> | Perhaps there should be a warning
> | option -Winexact with different levels to cover the different cases.
>
> and the diagnostic will probably have to be moved to the preprocessor.

Floating point constants are processed in c-lex.c. Why should the
diagnostic be moved elsewhere ?

Cheers,

Manuel.