Gcd_BN

Computes greatest common divisor.

Syntax

IppStatus ippsGcd_BN(IppsBigNumState* pA, IppsBigNumState* pB, IppsBigNumState* pGCD);

Include Files

ippcp.h

Parameters

pA

Pointer to the first integer big number of IppsBigNumState.

pB

Pointer to the second integer big number of IppsBigNumState.

pCGD

Pointer to the greatest common divisor to pA and pB.

Description

The function computes the greatest common divisor (GCD) for two positive integer big numbers.

The following pseudocode represents this function:

pCGDgcd (pA ,pB).

Return Values

ippStsNoErr

Indicates no error. Any other value indicates an error or warning.

ippStsNullPtrErr

Indicates an error condition if any of the specified pointers is NULL.

ippStsOutOfRangeErr

Indicates an error condition if IppsBigNumState*pCGD is smaller than the length of IppsBigNumState*pA or IppsBigNumState*pB.

ippStsContextMatchErr

Indicates an error condition if any of the context parameters does not match the operation.

Note

The size of IppsBigNumState *pCGD should not be less than either the length of IppsBigNumState *pA and IppsBigNumState *pB.