Developer Reference for Intel® oneAPI Math Kernel Library - C

Developer Reference

  • 2021.1
  • 12/04/2020
  • Public Content
Contents

v?CopySign

Returns vector of elements of one argument with signs changed to match other argument elements.

Syntax

vsCopySign
(
n
,
a
,
y
);
vsCopySignI(n, a, inca, b, incb, y, incy);
vmsCopySign
(
n
,
a
,
y
,
mode
);
vmsCopySignI(n, a, inca, b, incb, y, incy, mode);
vdCopySign
(
n
,
a
,
y
);
vdCopySignI(n, a, inca, b, incb, y, incy);
vmdCopySign
(
n
,
a
,
y
,
mode
);
vmdCopySignI(n, a, inca, b, incb, y, incy, mode);
Include Files
  • mkl.h
Input Parameters
Name
Type
Description
n
const MKL_INT
Specifies the number of elements to be calculated.
a
const float*
 for
vsCopySign
const float*
 for
vmsCopySign
const double*
 for
vdCopySign
const double*
 for
vmdCopySign
Pointer to the array containing the input vector
a
.
inca
,
incb
,
incy
const MKL_INT
Specifies increments for the elements of
a
,
b
, and
y
.
mode
const MKL_INT64
Overrides the global VM
mode
 setting for this function call. See
vmlSetMode
 for possible values and their description.
Output Parameters
Name
Type
Description
y
float*
 for
vsCopySign
float*
 for
vmsCopySign
double*
 for
vdCopySign
double*
 for
vmdCopySign
Pointer to an array containing the output vector
y
.
Description
The
v?CopySign
 function returns the first vector argument elements with the sign changed to match the sign of the second vector argument's corresponding elements.

Product and Performance Information

1

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