Re: number->string->symbol problem

[Robert Bruce Findler <robby@cs.rice.edu>]

Because 

  '25

is not a symbol, it is a number.

  > (number? '25)
  #t
  > (symbol? '25)
  #f

Quote does not make everything a symbol, just alphabetic things
(roughly). For example, this:

  '(1 2 3)

is a list of three numbers.

If you want a symbol whose printed representation is 25, you can write
this:

  '|25|

The bars mean "I don't care what is inside, this thing is a symbol".
Then,

  > (eq? (string->symbol (number->string 25)) '|25|)
  #t

Hope that helps,
Robby

At Fri, 8 Mar 2002 23:01:52 +0100, "Wouter Van den Broeck" wrote:
> hey,
> 
> I have a small issue, which can be summarized as follows: why does the
> following line of code return false? (DrScheme v103 win2K)
> 
> (eq? (string->symbol (number->string 25)) '25)
> 
> TIA
> 
> wouter
> 
>