jinni.c
/**
 * `cdr` has  one argument. Its value is the second part of its
 * composite argument. `cdr` is also undefined if its argument is atomic.
 *
 */
`cdr` has  one argument. Its value is the second part of its
composite argument. `cdr` is also undefined if its argument is atomic.
` cdr ` has one argument . Its value is the second part of its composite argument . ` cdr ` is also undefined if its argument is atomic .
S_Expr *cdr(S_Expr *e)
{
  if (is_atom(e)) {
    return &nil_s_expr;
  }
  return (((Cell *)(e->expr))->right);
}
S_Expr * cdr ( S_Expr * e ) { if ( is_atom ( e ) ) { return & nil_s_expr ; } return ( ( ( Cell * ) ( e -> expr ) ) -> right ) ; }
`cdr` has  one argument.
` cdr ` has one argument .