Developer Reference

  • 2020
  • 07/15/2020
  • Public Content
Contents

RealToCplx

Returns a complex vector constructed from the real and imaginary parts of two real vectors.

Syntax

IppStatus ippsRealToCplx_16s(const Ipp16s*
pSrcRe
, const Ipp16s*
pSrcIm
, Ipp16sc*
pDst
, int
len
);
IppStatus ippsRealToCplx_32f(const Ipp32f*
pSrcRe
, const Ipp32f*
pSrcIm
, Ipp32fc*
pDst
, int
len
);
IppStatus ippsRealToCplx_64f(const Ipp64f*
pSrcRe
, const Ipp64f*
pSrcIm
, Ipp64fc*
pDst
, int
len
);
Include Files
ipps.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
Libraries:
ippcore.lib
,
ippvm.lib
Parameters
pSrcRe
Pointer to the vector with real parts of complex elements.
pSrcIm
Pointer to the vector with imaginary parts of complex elements.
pDst
Pointer to the destination vector.
len
Number of elements in the vector.
Description
This function returns a complex vector
pDst
constructed from the real and imaginary parts of the input vectors
pSrcRe
and
pSrcIm
.
If
pSrcRe
is
NULL
, the real component of the vector is set to zero.
If
pSrcIm
is
NULL
, the imaginary component of the vector is set to zero.
Note that the pointers cannot be both
NULL
.
Return Values
ippStsNoErr
Indicates no error.
ippStsNullPtrErr
Indicates an error when the
pDst
pointer is
NULL
NULL
. The pointer
pSrcRe
or
pSrcIm
can be
NULL
.
ippStsSizeErr
Indicates an error when
len
is less than or equal to zero.

Example

/******************************************************************************* * Copyright 2015-2020 Intel Corporation. * * This software and the related documents are Intel copyrighted materials, and * your use of them is governed by the express license under which they were * provided to you (License). Unless the License provides otherwise, you may not * use, modify, copy, publish, distribute, disclose or transmit this software or * the related documents without Intel's prior written permission. * * This software and the related documents are provided as is, with no express * or implied warranties, other than those that are expressly stated in the * License. *******************************************************************************/ #include <stdio.h> #include "ipp.h" /* Next two defines are created to simplify code reading and understanding */ #define EXIT_MAIN exitLine: /* Label for Exit */ #define check_sts(st) if((st) != ippStsNoErr) goto exitLine; /* Go to Exit if Intel(R) Integrated Primitives (Intel(R) IPP) function returned status different from ippStsNoErr */ /* Results of ippMalloc() are not validated because Intel(R) IPP functions perform bad arguments check and will return an appropriate status */ int main() { Ipp16s pValsIm[] = { 1, -3, 5, -7, 18, -24, 35, 48 }; Ipp16s pValsRe[] = { 1, -3, 5, -7, 18, -24, 35, 48 }; Ipp16sc pOutVals[8]; IppStatus status; int i; printf("\nSource vector\n"); printf("\nRe="); for (i = 0; i < 8; i++) printf("%d ", pValsRe[i]); printf("\nIm="); for (i = 0; i < 8; i++) printf("%d ", pValsRe[i]); check_sts(status = ippsRealToCplx_16s(pValsRe, pValsIm, pOutVals, 8)); printf("\nResult values vector\n"); for (i = 0; i < 8; i++) printf("%d, %d; ", pOutVals[i].re, pOutVals[i].im); EXIT_MAIN printf("\nExit status %d (%s)\n", (int)status, ippGetStatusString(status)); return (int)status; }

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804