Intel® Integrated Performance Primitives Developer Reference

Developer Reference

  • 2021
  • 01/25/2021
  • Public Content
Contents

Copy

Copies the contents of one vector into another.

Syntax

IppStatus ippsCopy_8u(const Ipp8u*
pSrc
, Ipp8u*
pDst
, int
len
);
IppStatus ippsCopy_16s(const Ipp16s*
pSrc
, Ipp16s*
pDst
, int
len
);
IppStatus ippsCopy_32s(const Ipp32s*
pSrc
, Ipp32s*
pDst
, int
len
);
IppStatus ippsCopy_32f(const Ipp32f*
pSrc
, Ipp32f*
pDst
, int
len
);
IppStatus ippsCopy_64s(const Ipp64s*
pSrc
, Ipp64s*
pDst
, int
len
);
IppStatus ippsCopy_64f(const Ipp64f*
pSrc
, Ipp64f*
pDst
, int
len
);
IppStatus ippsCopy_16sc(const Ipp16sc*
pSrc
, Ipp16sc*
pDst
, int
len
);
IppStatus ippsCopy_32sc(const Ipp32sc*
pSrc
, Ipp32sc*
pDst
, int
len
);
IppStatus ippsCopy_32fc(const Ipp32fc*
pSrc
, Ipp32fc*
pDst
, int
len
);
IppStatus ippsCopy_64sc(const Ipp64sc*
pSrc
, Ipp64sc*
pDst
, int
len
);
IppStatus ippsCopy_64fc(const Ipp64fc*
pSrc
, Ipp64fc*
pDst
, int
len
);
Include Files
ipps.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
Libraries:
ippcore.lib
,
ippvm.lib
Parameters
pSrc
Pointer to the source vector.
pDst
Pointer to the destination vector.
len
Number of elements to copy.
Description
This function copies the first
len
 elements from a source vector
pSrc
 into a destination vector
pDst
.
ippsCopy_1u
. This function flavor copies elements of a vector that has a
8u
 data type. It means that each byte consists of eight consecutive elements of the vector (1 bit per element). You need to specify the start position of the source and destination vectors in the
srcBitOffset
 and
dstBitOffset
 parameters, respectively. The bit order of each byte is inverse to the element order. It means that the first element in a vector represents the last (seventh) bit of the first byte in a vector, as shown in the figure below.
Bit Layout for the Function
ippsCopy_1u
.
These functions perform only copying operations described above and are not intended to move data. Their behavior is unpredictable if source and destination buffers are overlapping. To move data, use
ippsMove
.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error when the
pSrc
 or
pDst
 pointer is
NULL
.
ippStsSizeErr
Indicates an error when
len
 is less than or equal to zero.

Example

The example below shows how to use the
ippsCopy
 function.
IppStatus copy(void) {
       char src[] = “to be copied\0”;
       char dst[256];
       return ippsCopy_8u(src, dst, strlen(src)+1);
  }

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.