#include "f2c.h"

/* Subroutine */ int zlaset_(char *uplo, integer *m, integer *n, 

	doublecomplex *alpha, doublecomplex *beta, doublecomplex *a, integer *

	lda)

{

/*  -- LAPACK auxiliary routine (version 2.0) --   

       Univ. of Tennessee, Univ. of California Berkeley, NAG Ltd.,   

       Courant Institute, Argonne National Lab, and Rice University   

       October 31, 1992   

    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 triangular 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).   

    ===================================================================== 

   Parameter adjustments   

       Function Body */

    /* System generated locals */

    integer a_dim1, a_offset, i__1, i__2, i__3;

    /* Local variables */

    static integer i, j;

    extern logical lsame_(char *, char *);

#define A(I,J) a[(I)-1 + ((J)-1)* ( *lda)]

    if (lsame_(uplo, "U")) {

/*        Set the diagonal to BETA and the strictly upper triangular 

          part of the array to ALPHA. */

	i__1 = *n;

	for (j = 2; j <= *n; ++j) {

/* Computing MIN */

	    i__3 = j - 1;

	    i__2 = min(i__3,*m);

	    for (i = 1; i <= min(j-1,*m); ++i) {

		i__3 = i + j * a_dim1;

		A(i,j).r = alpha->r, A(i,j).i = alpha->i;

/* L10: */

	    }

/* L20: */

	}

	i__1 = min(*n,*m);

	for (i = 1; i <= min(*n,*m); ++i) {

	    i__2 = i + i * a_dim1;

	    A(i,i).r = beta->r, A(i,i).i = beta->i;

/* L30: */

	}

    } else if (lsame_(uplo, "L")) {

/*        Set the diagonal to BETA and the strictly lower triangular 

          part of the array to ALPHA. */

	i__1 = min(*m,*n);

	for (j = 1; j <= min(*m,*n); ++j) {

	    i__2 = *m;

	    for (i = j + 1; i <= *m; ++i) {

		i__3 = i + j * a_dim1;

		A(i,j).r = alpha->r, A(i,j).i = alpha->i;

/* L40: */

	    }

/* L50: */

	}

	i__1 = min(*n,*m);

	for (i = 1; i <= min(*n,*m); ++i) {

	    i__2 = i + i * a_dim1;

	    A(i,i).r = beta->r, A(i,i).i = beta->i;

/* L60: */

	}

    } else {

/*        Set the array to BETA on the diagonal and ALPHA on the   

          offdiagonal. */

	i__1 = *n;

	for (j = 1; j <= *n; ++j) {

	    i__2 = *m;

	    for (i = 1; i <= *m; ++i) {

		i__3 = i + j * a_dim1;

		A(i,j).r = alpha->r, A(i,j).i = alpha->i;

/* L70: */

	    }

/* L80: */

	}

	i__1 = min(*m,*n);

	for (i = 1; i <= min(*m,*n); ++i) {

	    i__2 = i + i * a_dim1;

	    A(i,i).r = beta->r, A(i,i).i = beta->i;

/* L90: */

	}

    }

    return 0;

/*     End of ZLASET */

} /* zlaset_ */