abs()
public
Returns the absolute value of num.
12.abs
(-34.56).abs
-34.56.abs
/*
* call-seq:
* num.abs => num or numeric
*
* Returns the absolute value of <i>num</i>.
*
* 12.abs #=> 12
* (-34.56).abs #=> 34.56
* -34.56.abs #=> 34.56
*/
static VALUE
num_abs(num)
VALUE num;
{
if (RTEST(rb_funcall(num, '<', 1, INT2FIX(0)))) {
return rb_funcall(num, rb_intern("-@"), 0);
}
return num;
}