Computes the dot product of two vectors using the automatic scaling.
Syntax
IppStatus ippsDotProdAutoScale_16s32s_Sfs(const Ipp16s* pSrc1, const Ipp16s* pSrc2, int len, Ipp32s* pDp, int* pSfs);
Parameters
pSrc1 |
Pointer to the first source vector. |
pSrc2 |
Pointer to the second source vector. |
len |
Number of elements in each vector. |
pDp |
Pointer to the output result. |
pSfs |
Pointer to the scaling factor. |
Description
The function ippsDotProdAutoScale is declared in the ippsc.h file. This function computes the dot product of two vectors and automatically scales it during calculation, adjusting the scale factor so as to eliminate possible overflow in the process:
The final scaling factor is returned by pSfs. Vectors pSrc1 and pSrc2 must have the same length, len.
Return Values
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when the pSrc1, pSrc2, pDp, or pSfs pointer is NULL. |
ippStsSizeErr |
Indicates an error when len is less than or equal to 0. |
ippStsOverflow |
Indicates a warning that at least one result value was saturated. |