rev.idel

来自「idel虚拟机源码」· IDEL 代码 · 共 18 行

#define at        2 << +
#define ref       at @
#define set       at !

def 2 0 reversing
  { i j -- i j < if  
             v i ref  v j ref  v i set  v j set
             i 1 +  j 1 -  reversing
           then } ;
def 1 0 reverse
  { size --  0  size 1 -  reversing } ;

def 1 0 iota 
  1 - { i --  i 0 < if  else  i v i set  i iota  then } ;

def 1 0 loop 
  1 - { i --  i 0 < if  else  vsize reverse  i loop then } ;