v?Floor

Computes an integer value rounded towards minus infinity for each vector element.

Syntax

Fortran:

call vsfloor( n, a, y )

call vdfloor( n, a, y )

vsFloor( n, a, y );

vdFloor( n, a, y );

Include Files

The FORTRAN 77 interfaces are specified in the mkl_vml.f77 include file, the Fortran 90 interfaces are specified in the mkl_vml.f90 include file, and the C interfaces are specified in the mkl_vml_functions.h include file.

Input Parameters

Name	Type	Description
n	FORTRAN 77: INTEGER Fortran 90: INTEGER, INTENT(IN) C: const int	Specifies the number of elements to be calculated.
`a`	FORTRAN 77: REAL for vsfloor DOUBLE PRECISION for vdfloor Fortran 90: REAL, INTENT(IN) for vsfloor DOUBLE PRECISION, INTENT(IN) for vdfloor C: const float* for vsFloor const double* for vdFloor	FORTRAN: Array that specifies the input vector a. C: Pointer to an array that contains the input vector a.

Name

Type

Description

FORTRAN 77: INTEGER

Fortran 90: INTEGER, INTENT(IN)

C: const int

Specifies the number of elements to be calculated.

a

FORTRAN 77: REAL for vsfloor

DOUBLE PRECISION for vdfloor

Fortran 90: REAL, INTENT(IN) for vsfloor

DOUBLE PRECISION, INTENT(IN) for vdfloor

C: const float* for vsFloor

const double* for vdFloor

FORTRAN: Array that specifies the input vector a.

C: Pointer to an array that contains the input vector a.

Output Parameters

Name	Type	Description
`y`	FORTRAN 77: REAL for vsfloor DOUBLE PRECISION for vdfloor Fortran 90: REAL, INTENT(OUT) for vsfloor DOUBLE PRECISION, INTENT(OUT) for vdfloor C: float* for vsFloor double* for vdFloor	FORTRAN: Array that specifies the output vector y. C: Pointer to an array that contains the output vector y.

Name

Type

Description

y

FORTRAN 77: REAL for vsfloor

DOUBLE PRECISION for vdfloor

Fortran 90: REAL, INTENT(OUT) for vsfloor

DOUBLE PRECISION, INTENT(OUT) for vdfloor

C: float* for vsFloor

double* for vdFloor

FORTRAN: Array that specifies the output vector y.

C: Pointer to an array that contains the output vector y.

Description

The function computes an integer value rounded towards minus infinity for each vector element.

Special Values for Real Function v?Floor(x)
Argument	Result	Exception
+0	+0
-0	-0
+∞	+∞
-∞	-∞
SNAN	QNAN	INVALID
QNAN	QNAN