* (number? '1e311)
@ 2008-11-01 14:22 Bill Schottstaedt
2008-11-19 21:48 ` Ludovic Courtès
0 siblings, 1 reply; 2+ messages in thread
From: Bill Schottstaedt @ 2008-11-01 14:22 UTC (permalink / raw)
To: bug-guile
I think number? should not signal an error -- it should
return either #t or #f:
guile> (number? '1e310)
ERROR: In procedure string->number:
ERROR: Value out of range: 310
ABORT: (out-of-range)
guile> ERROR: In procedure scm_read_expression:
ERROR: standard input:1:17: unexpected ")"
ABORT: (read-error)
Also, the error message should mention that the value
in question is an exponent (this can be non-obvious in actual
code).
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: (number? '1e311)
2008-11-01 14:22 (number? '1e311) Bill Schottstaedt
@ 2008-11-19 21:48 ` Ludovic Courtès
0 siblings, 0 replies; 2+ messages in thread
From: Ludovic Courtès @ 2008-11-19 21:48 UTC (permalink / raw)
To: bug-guile
Hi,
Sorry for the late reply.
"Bill Schottstaedt" <bil@ccrma.Stanford.EDU> writes:
> I think number? should not signal an error -- it should
> return either #t or #f:
>
> guile> (number? '1e310)
> ERROR: In procedure string->number:
> ERROR: Value out of range: 310
> ABORT: (out-of-range)
> guile> ERROR: In procedure scm_read_expression:
> ERROR: standard input:1:17: unexpected ")"
> ABORT: (read-error)
The error is not raised by `number?', it's raised by the reader, which
uses `string->number' internally.
Thanks,
Ludo'.
^ permalink raw reply [flat|nested] 2+ messages in thread
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