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  1. ! Copyright (C) 2006 Daniel Ehrenberg
  2. ! See http://f...content-available-to-author-only...e.org/license.txt for BSD license.
  3. USING: kernel math sequences strings io  ;
  4. IN: factorial ;
  5.  
  6. : fac ( n -- n ) dup 1 <= [ drop 1 ] [ dup 1 - fac * ] if ;
  7.  
  8. 5 fac print
  9.  
Runtime error #stdin #stdout 0.18s 159232KB
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Standard input is empty
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./prog.factor

4: IN: factorial ;
                  ^
Expected end of input but got ;
https://ideone.com/1muKn
language:
Factor (factor-0.93)
created:
14 years ago
visibility:
public

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