method

truncate

v2_4_6 - Show latest stable - Class: Integer

truncate(*args)

public

Returns the smallest number than or equal to int in decimal digits (default 0 digits).

Precision may be negative. Returns a floating point number when ndigits is positive, self for zero, and truncate up for negative.

1.truncate        #=> 1
1.truncate(2)     #=> 1.0
15.truncate(-1)   #=> 10

static VALUE
int_truncate(int argc, VALUE* argv, VALUE num)
{
    int ndigits;

    if (!rb_check_arity(argc, 0, 1)) return num;
    ndigits = NUM2INT(argv[0]);
    if (ndigits > 0) {
        return rb_Float(num);
    }
    if (ndigits == 0) {
        return num;
    }
    return rb_int_truncate(num, ndigits);
}

truncate

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