?copy

Syntax

FORTRAN 77:

call scopy(n, x, incx, y, incy)

call dcopy(n, x, incx, y, incy)

call ccopy(n, x, incx, y, incy)

call zcopy(n, x, incx, y, incy)

Fortran 95:

call copy(x, y)

Include Files

The FORTRAN 77 interfaces are specified in the mkl_blas.fi include file, the Fortran 95 interfaces are specified in the blas.f90 include file, and the C interfaces are specified in the mkl_blas.h include file.

Description

The ?copy routines perform a vector-vector operation defined as
y = x,

where x and y are vectors.

Input Parameters

n

INTEGER. Specifies the number of elements in vectors x and y.

x

REAL for scopy

DOUBLE PRECISION for dcopy

COMPLEX for ccopy

DOUBLE COMPLEX for zcopy

Array, DIMENSION at least (1 + (n-1)*abs(incx)).

incx

INTEGER. Specifies the increment for the elements of x.

y

REAL for scopy

DOUBLE PRECISION for dcopy

COMPLEX for ccopy

DOUBLE COMPLEX for zcopy

Array, DIMENSION at least (1 + (n-1)*abs(incy)).

incy

INTEGER. Specifies the increment for the elements of y.

Output Parameters

y

Contains a copy of the vector x if n is positive. Otherwise, parameters are unaltered.

Fortran 95 Interface Notes

Routines in Fortran 95 interface have fewer arguments in the calling sequence than their FORTRAN 77 counterparts. For general conventions applied to skip redundant or reconstructible arguments, see Fortran 95 Interface Conventions.

Specific details for the routine copy interface are the following:

x

Holds the vector with the number of elements n.

y

Holds the vector with the number of elements n.