Re: macro FIXNUM_OVERFLOW_P in lisp.h is valid ?

[Andreas Schwab]

Toru TSUNEYOSHI <address@hidden> writes:

> In this code, FIXNUM_OVERFLOW_P (val) will returns 0.
> Then Emacs processes `make_number ((EMACS_INT)(val)))'.
> On that time, `val' is casted from type `double' to `EMACS_INT'.
> At last, can string-to-number return all digits of the number
> 1152921504606846975 properly?
>
> I guessed it can't.
> That is the reason why I made my former patch.

Note that lread.c:read_integer has the same problem.  It is amazing how
many places try to convert a string of digits into a number, all failing
in one way or another.

Andreas.

-- 
Andreas Schwab, address@hidden
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