Returns an Integer converted from
num. It is equivalent to prec(Integer).
/*
* call-seq:
* num.prec_i => Integer
*
* Returns an +Integer+ converted from _num_. It is equivalent
* to <code>prec(Integer)</code>.
*/
static VALUE
prec_prec_i(x)
VALUE x;
{
VALUE klass = rb_cInteger;
return rb_funcall(x, prc_pr, 1, klass);
}