Real
Real
Returns the real part of a complex vector in a second vector.
Syntax
IppStatus ippsReal_16sc(const Ipp16sc*
pSrc
, Ipp16s*
pDstRe
, int
len
);
IppStatus ippsReal_32fc(const Ipp32fc*
pSrc
, Ipp32f*
pDstRe
, int
len
);
IppStatus ippsReal_64fc(const Ipp64fc*
pSrc
, Ipp64f*
pDstRe
, int
len
);
Include Files
ipps.h
Domain Dependencies
Headers:
ippcore.h
,
ippvm.h
Libraries:
ippcore.lib
,
ippvm.lib
Parameters
- pSrc
- Pointer to the complex source vector.
- pDstRe
- Pointer to the destination vector with real parts.
- len
- Number of elements in the vector.
Description
This function returns the real part of the complex vector
pSrc
in the vector
pDstRe
.
Return Values
- ippStsNoErr
- Indicates no error.
- ippStsNullPtrErr
- Indicates an error when thepDstReorpSrcpointer isNULL.
- ippStsSizeErr
- Indicates an error whenlenis 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() { Ipp32fc pSrc[5] = { { 1.2, 3.2 }, { 0.0, 0.3 }, { 4.3, 6.7 }, { 4.2, 0.0 }, { 1.2, 1.2 } }; Ipp32f pDstIm[5]; IppStatus status; int i; printf("\nSource vector\n"); for (i = 0; i < 5; i++) printf("%.1f, %.1f; ", pSrc[i].re, pSrc[i].im); check_sts(status = ippsReal_32fc(pSrc, pDstIm, 5)); printf("\nResult values vector\n"); for (i = 0; i < 5; i++) printf("%.1f ", pDstIm[i]); EXIT_MAIN printf("\nExit status %d (%s)\n", (int)status, ippGetStatusString(status)); return (int)status; }