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NAME
     zlaset - initialize a 2-D array A to BETA  on  the  diagonal
     and ALPHA on the offdiagonals

SYNOPSIS
     SUBROUTINE ZLASET( UPLO, M, N, ALPHA, BETA, A, LDA )

     CHARACTER UPLO

     INTEGER LDA, M, N

     COMPLEX*16 ALPHA, BETA

     COMPLEX*16 A( LDA, * )



     #include <sunperf.h>

     void zlaset(char uplo, int m, int n, doublecomplex  *zalpha,
               doublecomplex *zbeta, doublecomplex *za, intlda) ;

PURPOSE
     ZLASET initializes a 2-D array A to BETA on the diagonal and
     ALPHA on the offdiagonals.


ARGUMENTS
     UPLO      (input) CHARACTER*1
               Specifies the part of the matrix A to be  set.   =
               'U':       Upper triangular part is set. The lower
               triangle is unchanged.  = 'L':      Lower triangu-
               lar  part is set. The upper triangle is unchanged.
               Otherwise:  All of the matrix A is set.

     M         (input) INTEGER
               On entry, M specifies the number of rows of A.

     N         (input) INTEGER
               On entry, N specifies the number of columns of A.

     ALPHA     (input) COMPLEX*16
               All the offdiagonal  array  elements  are  set  to
               ALPHA.

     BETA      (input) COMPLEX*16
               All the diagonal array elements are set to BETA.

     A         (input/output) COMPLEX*16 array, dimension (LDA,N)
               On entry, the m by n matrix A.  On exit, A(i,j)  =
               ALPHA,  1 <= i <= m, 1 <= j <= n, i.ne.j; A(i,i) =
               BETA , 1 <= i <= min(m,n)

     LDA       (input) INTEGER
               The leading dimension of  the  array  A.   LDA  >=
               max(1,M).

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