Sums natural logarithms of each element of a vector.
Syntax
IppStatus ippsSumLn_32f(const Ipp32f* pSrc, int len, Ipp32f* pSum);
IppStatus ippsSumLn_64f(const Ipp64f* pSrc, int len, Ipp64f* pSum);
IppStatus ippsSumLn_32f64f(const Ipp32f* pSrc, int len, Ipp64f* pSum);
IppStatus ippsSumLn_16s32f(const Ipp16s* pSrc, int len, Ipp32f* pSum);
Include Files
ipps.h
Domain Dependencies
Headers: ippcore.h, ippvm.h
Libraries: ippcore.lib, ippvm.lib
Parameters
pSrc |
Pointer to the source vector. |
pSum |
Pointer to the output result. |
len |
Number of elements in the vector. |
Description
This function computes the sum of natural logarithms of each element of the vector pSrc and stores the result value in pSum. The summation is given by:
Return Values
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when the pSrc or pSum pointer is NULL. |
ippStsSizeErr |
Indicates an error when len is less than or equal to 0. |
ippStsLnZeroArg |
Indicates a warning for zero-valued input vector elements. Operation execution is not aborted. The value of the destination vector element for floating-point operations is set to -Inf. |
ippStsLnNegArg |
Indicates a warning for negative input vector elements. Operation execution is not aborted. The value of the destination vector element for floating-point operations is set to NaN. |