method

quo

v2_2_9 - Show latest stable - Class: BigDecimal

quo(p1)

public

Divide by the specified value.

e.g.

c = a.div(b,n)

digits

If specified and less than the number of significant digits of the

result, the result is rounded to that number of digits, according to BigDecimal.mode.

If digits is 0, the result is the same as the / operator. If not, the result is an integer BigDecimal, by analogy with Float#div.

The alias quo is provided since div(value, 0) is the same as computing the quotient; see BigDecimal#divmod.

static VALUE
BigDecimal_div(VALUE self, VALUE r)
/* For c = self/r: with round operation */
{
    ENTER(5);
    Real *c=NULL, *res=NULL, *div = NULL;
    r = BigDecimal_divide(&c, &res, &div, self, r);
    if (!NIL_P(r)) return r; /* coerced by other */
    SAVE(c); SAVE(res); SAVE(div);
    /* a/b = c + r/b */
    /* c xxxxx
       r 00000yyyyy  ==> (y/b)*BASE >= HALF_BASE
     */
    /* Round */
    if (VpHasVal(div)) { /* frac[0] must be zero for NaN,INF,Zero */
        VpInternalRound(c, 0, c->frac[c->Prec-1], (BDIGIT)(VpBaseVal() * (BDIGIT_DBL)res->frac[0] / div->frac[0]));
    }
    return ToValue(c);
}

quo

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