The MulDiv function multiplies two 32-bit values and then divides the 64-bit result by a third 32-bit value. The return value is rounded up or down to the nearest integer.
int MulDiv(
| int nNumber, | // 32-bit signed multiplicand |
| int nNumerator, | // 32-bit signed multiplier |
| int nDenominator | // 32-bit signed divisor |
| ); |
Parameters
nNumber
Specifies the multiplicand.
nNumerator
Specifies the multiplier.
nDenominator
Specifies the number by which the result of the multiplication (nNumber * nNumerator) is to be divided.
Return Values
If the function succeeds, the return value is the result of the multiplication and division. If either an overflow occurred or nDenominator was 0, the return value is -1.
See Also