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

Syntax

vsModf( n, a, y, z );

vmsModf( n, a, y, z, mode );

vdModf( n, a, y, z );

vmdModf( n, a, y, z, 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.

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  
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