Developer Reference

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

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 2015-2020 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 = 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; }

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