Visible to Intel only — GUID: GUID-09B0E7CC-2388-4828-9489-B364CF87A8FF
Visible to Intel only — GUID: GUID-09B0E7CC-2388-4828-9489-B364CF87A8FF
?swap
Swaps a vector with another vector.
Syntax
call sswap(n, x, incx, y, incy)
call dswap(n, x, incx, y, incy)
call cswap(n, x, incx, y, incy)
call zswap(n, x, incx, y, incy)
call swap(x, y)
Include Files
- mkl.fi, blas.f90
Description
Given two vectors x and y, the ?swap routines return vectors y and x swapped, each replacing the other.
Input Parameters
- n
-
INTEGER. Specifies the number of elements in vectors x and y.
- x
-
REAL for sswap
DOUBLE PRECISION for dswap
COMPLEX for cswap
DOUBLE COMPLEX for zswap
Array, size at least (1 + (n-1)*abs(incx)).
- incx
-
INTEGER. Specifies the increment for the elements of x.
- y
-
REAL for sswap
DOUBLE PRECISION for dswap
COMPLEX for cswap
DOUBLE COMPLEX for zswap
Array, size at least (1 + (n-1)*abs(incy)).
- incy
-
INTEGER. Specifies the increment for the elements of y.
Output Parameters
- x
-
Contains the resultant vector x, that is, the input vector y.
- y
-
Contains the resultant vector y, that is, the input vector x.
BLAS 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 BLAS 95 Interface Conventions.
Specific details for the routine swap interface are the following:
- x
-
Holds the vector with the number of elements n.
- y
-
Holds the vector with the number of elements n.