dscal - Compute y := alpha * y
SUBROUTINE DSCAL(N, ALPHA, Y, INCY) INTEGER N, INCY DOUBLE PRECISION ALPHA DOUBLE PRECISION Y(*) SUBROUTINE DSCAL_64(N, ALPHA, Y, INCY) INTEGER*8 N, INCY DOUBLE PRECISION ALPHA DOUBLE PRECISION Y(*) F95 INTERFACE SUBROUTINE SCAL(N, ALPHA, Y, INCY) INTEGER :: N, INCY REAL(8) :: ALPHA REAL(8), DIMENSION(:) :: Y SUBROUTINE SCAL_64(N, ALPHA, Y, INCY) INTEGER(8) :: N, INCY REAL(8) :: ALPHA REAL(8), DIMENSION(:) :: Y C INTERFACE #include <sunperf.h> void dscal(int n, double alpha, double *y, int incy); void dscal_64(long n, double alpha, double *y, long incy);
Oracle Solaris Studio Performance Library dscal(3P) NAME dscal - Compute y := alpha * y SYNOPSIS SUBROUTINE DSCAL(N, ALPHA, Y, INCY) INTEGER N, INCY DOUBLE PRECISION ALPHA DOUBLE PRECISION Y(*) SUBROUTINE DSCAL_64(N, ALPHA, Y, INCY) INTEGER*8 N, INCY DOUBLE PRECISION ALPHA DOUBLE PRECISION Y(*) F95 INTERFACE SUBROUTINE SCAL(N, ALPHA, Y, INCY) INTEGER :: N, INCY REAL(8) :: ALPHA REAL(8), DIMENSION(:) :: Y SUBROUTINE SCAL_64(N, ALPHA, Y, INCY) INTEGER(8) :: N, INCY REAL(8) :: ALPHA REAL(8), DIMENSION(:) :: Y C INTERFACE #include <sunperf.h> void dscal(int n, double alpha, double *y, int incy); void dscal_64(long n, double alpha, double *y, long incy); PURPOSE dscal Compute y := alpha * y where alpha is a scalar and y is an n-vec- tor. ARGUMENTS N (input) On entry, N specifies the number of elements in the vector. N must be at least one for the subroutine to have any visible effect. Unchanged on exit. ALPHA (input) On entry, ALPHA specifies the scalar alpha. Unchanged on exit. Y (input/output) ( 1 + ( n - 1 )*INCY ). On entry, the incremented array Y must contain the vector y. On exit, Y is overwritten by the updated vector y. INCY (input) On entry, INCY specifies the increment for the elements of Y. This routine returns immediately if INCY is less than or equal to zero. Unchanged on exit. 7 Nov 2015 dscal(3P)