gcc bug WRT warning that should not be displayed

[Jim Wilson]

Mo DeJong wrote:
>    long val2 = 1; /* incorrect warn when val2 is a long */
>    int c2 = (
>          ((long long) val2) <
>          ((long long)(-2147483647L - 1))
>         );

The result of the compare will always be false, so the warning is correct.

The long variable val2 can not hold a value smaller than LONG_MIN. 
Adding casts to long long does not change this fact.
-- 
Jim Wilson, GNU Tools Support, http://www.specifix.com