--- rpl/lapack/blas/zdscal.f	2011/11/21 20:37:08	1.8
+++ rpl/lapack/blas/zdscal.f	2023/08/07 08:38:44	1.16
@@ -2,14 +2,14 @@
 *
 *  =========== DOCUMENTATION ===========
 *
-* Online html documentation available at 
-*            http://www.netlib.org/lapack/explore-html/ 
+* Online html documentation available at
+*            http://www.netlib.org/lapack/explore-html/
 *
 *  Definition:
 *  ===========
 *
 *       SUBROUTINE ZDSCAL(N,DA,ZX,INCX)
-* 
+*
 *       .. Scalar Arguments ..
 *       DOUBLE PRECISION DA
 *       INTEGER INCX,N
@@ -17,7 +17,7 @@
 *       .. Array Arguments ..
 *       COMPLEX*16 ZX(*)
 *       ..
-*  
+*
 *
 *> \par Purpose:
 *  =============
@@ -27,15 +27,39 @@
 *>    ZDSCAL scales a vector by a constant.
 *> \endverbatim
 *
+*  Arguments:
+*  ==========
+*
+*> \param[in] N
+*> \verbatim
+*>          N is INTEGER
+*>         number of elements in input vector(s)
+*> \endverbatim
+*>
+*> \param[in] DA
+*> \verbatim
+*>          DA is DOUBLE PRECISION
+*>           On entry, DA specifies the scalar alpha.
+*> \endverbatim
+*>
+*> \param[in,out] ZX
+*> \verbatim
+*>          ZX is COMPLEX*16 array, dimension ( 1 + ( N - 1 )*abs( INCX ) )
+*> \endverbatim
+*>
+*> \param[in] INCX
+*> \verbatim
+*>          INCX is INTEGER
+*>         storage spacing between elements of ZX
+*> \endverbatim
+*
 *  Authors:
 *  ========
 *
-*> \author Univ. of Tennessee 
-*> \author Univ. of California Berkeley 
-*> \author Univ. of Colorado Denver 
-*> \author NAG Ltd. 
-*
-*> \date November 2011
+*> \author Univ. of Tennessee
+*> \author Univ. of California Berkeley
+*> \author Univ. of Colorado Denver
+*> \author NAG Ltd.
 *
 *> \ingroup complex16_blas_level1
 *
@@ -52,10 +76,9 @@
 *  =====================================================================
       SUBROUTINE ZDSCAL(N,DA,ZX,INCX)
 *
-*  -- Reference BLAS level1 routine (version 3.4.0) --
+*  -- Reference BLAS level1 routine --
 *  -- Reference BLAS is a software package provided by Univ. of Tennessee,    --
 *  -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..--
-*     November 2011
 *
 *     .. Scalar Arguments ..
       DOUBLE PRECISION DA
@@ -69,17 +92,20 @@
 *
 *     .. Local Scalars ..
       INTEGER I,NINCX
+*     .. Parameters ..
+      DOUBLE PRECISION ONE
+      PARAMETER (ONE=1.0D+0)
 *     ..
 *     .. Intrinsic Functions ..
-      INTRINSIC DCMPLX
+      INTRINSIC DBLE, DCMPLX, DIMAG
 *     ..
-      IF (N.LE.0 .OR. INCX.LE.0) RETURN
+      IF (N.LE.0 .OR. INCX.LE.0 .OR. DA.EQ.ONE) RETURN
       IF (INCX.EQ.1) THEN
 *
 *        code for increment equal to 1
 *
          DO I = 1,N
-            ZX(I) = DCMPLX(DA,0.0d0)*ZX(I)
+            ZX(I) = DCMPLX(DA*DBLE(ZX(I)),DA*DIMAG(ZX(I)))
          END DO
       ELSE
 *
@@ -87,8 +113,11 @@
 *
          NINCX = N*INCX
          DO I = 1,NINCX,INCX
-            ZX(I) = DCMPLX(DA,0.0d0)*ZX(I)
+            ZX(I) = DCMPLX(DA*DBLE(ZX(I)),DA*DIMAG(ZX(I)))
          END DO
       END IF
       RETURN
+*
+*     End of ZDSCAL
+*
       END