Developer Reference

Contents

v?Modf

Computes a truncated integer value and the remaining fraction part for each vector element.

Syntax

vsModf
(
n
,
a
,
y
,
z
)
;
vsModfI(n, a, inca, y, incy, z, incz);
vmsModf
(
n
,
a
,
y
,
z
,
mode
)
;
vmsModfI(n, a, inca, y, incy, z, incz, mode);
vdModf
(
n
,
a
,
y
,
z
)
;
vdModfI(n, a, inca, y, incy, z, incz);
vmdModf
(
n
,
a
,
y
,
z
,
mode
)
;
vmdModfI(n, a, inca, y, incy, z, incz, 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
vsModf
,
vmsModf
const double*
for
vdModf
,
vmdModf
Pointer to an array that contains the input vector
a
.
inca
,
incy
,
incz
const MKL_INT
Specifies increments for the elements of
a
,
y
, and
z
.
mode
const MKL_INT64
Overrides global VM mode setting for this function call. See
vmlSetMode
for possible values and their description.
Output Parameters
Name
Type
Description
y
,
z
float*
for
vsModf
,
vmsModf
double*
for
vdModf
,
vmdModf
Pointer to an array that contains the output vector
y
and
z
.
Description
The function computes a truncated integer value and the remaining fraction part for each vector element.
Special Values for Real Function
v?Modf(x)
Argument
Result:
y
(
i
)
Result:
z
(
i
)
Exception
+0
+0
+0
 
-0
-0
-0
 
+
+
+0
 
-
-
-0
 
SNAN
QNAN
QNAN
INVALID
QNAN
QNAN
QNAN
 

Product and Performance Information

1

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