thank u all!! :)
2014-07-20 16:09 GMT+03:00 קוראל אלימלך :
> תודה רבה לכולם :)
> עזרתם לי מאוד!
>
>
> 2014-07-20 15:59 GMT+03:00 David Van Horn :
>
>> On 7/20/14, 7:04 AM, קוראל אלימלך wrote:
>> > How can i define that a function will get an integer argument?
>> >
>> > is its possible?
>> >
>> >
תודה רבה לכולם :)
עזרתם לי מאוד!
2014-07-20 15:59 GMT+03:00 David Van Horn :
> On 7/20/14, 7:04 AM, קוראל אלימלך wrote:
> > How can i define that a function will get an integer argument?
> >
> > is its possible?
> >
> > for example:
> > (define (func (x::Number))) /// its not working that way
>
On 7/20/14, 7:04 AM, קוראל אלימלך wrote:
> How can i define that a function will get an integer argument?
>
> is its possible?
>
> for example:
> (define (func (x::Number))) /// its not working that way
>
> and if ill call the function with string there will be an error..
In addition to the sug
#lang typed/racket
(: plus : Number Number -> Number)
(define (plus x y)
(+ x y))
(plus 1 2)
(plus "x" 3)
2014-07-20 13:53 GMT+02:00 Jens Axel Søgaard :
> #lang racket
>
> (define (plus x y)
> (unless (and (number? x) (number? y))
> (error 'plus (~a "expected two numbers, got: " x " " y
#lang racket
(define (plus x y)
(unless (and (number? x) (number? y))
(error 'plus (~a "expected two numbers, got: " x " " y)))
(+ x y))
(plus 1 2)
(plus "x" 3)
2014-07-20 13:04 GMT+02:00 קוראל אלימלך :
> How can i define that a function will get an integer argument?
>
> is its possible?
AM GMT -05:00 US/Canada Eastern
Subject: [racket] Type of argument in a function
How can i define that a function will get an integer argument?
is its possible?
for example:
(define (func (x::Number))) /// its not working that way
and if ill call the function with string there will b
How can i define that a function will get an integer argument?
is its possible?
for example:
(define (func (x::Number))) /// its not working that way
and if ill call the function with string there will be an error..
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