add fac example

master
Ondřej Hruška 3 years ago
parent 5724ac4273
commit 9c44e0fb29
  1. 21
      testfiles/fac.f

@ -0,0 +1,21 @@
: fac ( num -- out )
dup 1 > if dup 1- recurse * then ;
: 0bye ( num -- )
0= if bye then ;
: xdrop ( count -- )
0 do drop loop ;
: >single ( c-addr u1 -- u2 )
0 0 2swap >number 3 xdrop ;
30 chars buffer: buf
." Number: "
buf 30 accept dup 0bye
buf swap >single
." Factorial of " dup . ." is "
fac . cr
Loading…
Cancel
Save