Intel® Integrated Performance Primitives (Intel® IPP) Developer Guide and Reference
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Visible to Intel only — GUID: GUID-8451183C-183A-443E-828C-5969995D1C40
Visible to Intel only — GUID: GUID-8451183C-183A-443E-828C-5969995D1C40
Imag
Returns the imaginary part of a complex vector in a second vector.
Syntax
IppStatus ippsImag_16sc(const Ipp16sc* pSrc, Ipp16s* pDstIm, int len);
IppStatus ippsImag_32fc(const Ipp32fc* pSrc, Ipp32f* pDstIm, int len);
IppStatus ippsImag_64fc(const Ipp64fc* pSrc, Ipp64f* pDstIm, 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. |
pDstIm |
Pointer to the destination vector with imaginary parts. |
len |
Number of elements in the vector. |
Description
This function returns the imaginary part of a complex vector pSrc in the vector pDstIm.
Return Values
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when the pDstIm or pSrc pointer is NULL. |
ippStsSizeErr |
Indicates an error when len is less than or equal to zero. |
Example
/******************************************************************************* * Copyright 2015 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 Performance 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 = ippsImag_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; }