| InvalidOperationException | x is NaN or ±∞ |
| x | quantexp(x) |
|---|---|
| NaN | int.min |
| ±∞ | int.min |
Notes: Unlike frexp where the exponent is calculated for a |coefficient| < 1.0, this functions returns the raw encoded exponent.
auto d = decimal32("0x0001p+12"); //1 * 10^^12 auto z = decimal64("0x0000p-3"); //0 * 10^^-3 int calculatedExponent, rawExponent; //d is 0.1 * 10^^13 frexp(d, calculatedExponent); rawExponent = quantexp(d); assert (calculatedExponent == 13 && rawExponent == 12); //z is 0.0 frexp(z, calculatedExponent); rawExponent = quantexp(z); assert (calculatedExponent == 0 && rawExponent == -3);
Returns the exponent encoded into the specified _decimal value;