GFPInv

Computes the multiplicative inverse for an element of the GF(p) field.

Syntax

IppStatus ippsGFPInv(const IppsGFPElement *pGFpElementA, IppsGFPElement *pGFpElementR, IppsGFPState *pGFp);

Parameters

pGFpElementA	Pointer to the context of the given GF(`p`) element.
pGFpElementR	Pointer to the context of the resulting GF(`p`) element.
pGFp	Pointer to the context of the GF(`p`) field.

Description

This function is declared in the ippcp.h file. The function computes the multiplicative inverse for a given element of the GF(p) field. The following pseudocode represents this operation: R = A^(-1).

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.
ippContextMatchErr	Indicates an error condition if any of the IppsGFPState or IppsGFPElement context parameters does not match the operation.
ippStsDivByZeroErr	Indicates an error condition if the zero element is attempted.