--- /dev/null
+#include "clapack.h"
+
+/* Subroutine */ int slaset_(char *uplo, integer *m, integer *n, real *alpha,
+ real *beta, real *a, integer *lda)
+{
+ /* System generated locals */
+ integer a_dim1, a_offset, i__1, i__2, i__3;
+
+ /* Local variables */
+ integer i__, j;
+ extern logical lsame_(char *, char *);
+
+
+/* -- LAPACK auxiliary routine (version 3.1) -- */
+/* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
+/* November 2006 */
+
+/* .. Scalar Arguments .. */
+/* .. */
+/* .. Array Arguments .. */
+/* .. */
+
+/* Purpose */
+/* ======= */
+
+/* SLASET initializes an m-by-n matrix 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 strictly lower */
+/* triangular part of A is not changed. */
+/* = 'L': Lower triangular part is set; the strictly upper */
+/* triangular part of A is not changed. */
+/* Otherwise: All of the matrix A is set. */
+
+/* M (input) INTEGER */
+/* The number of rows of the matrix A. M >= 0. */
+
+/* N (input) INTEGER */
+/* The number of columns of the matrix A. N >= 0. */
+
+/* ALPHA (input) REAL */
+/* The constant to which the offdiagonal elements are to be set. */
+
+/* BETA (input) REAL */
+/* The constant to which the diagonal elements are to be set. */
+
+/* A (input/output) REAL array, dimension (LDA,N) */
+/* On exit, the leading m-by-n submatrix of A is set as follows: */
+
+/* if UPLO = 'U', A(i,j) = ALPHA, 1<=i<=j-1, 1<=j<=n, */
+/* if UPLO = 'L', A(i,j) = ALPHA, j+1<=i<=m, 1<=j<=n, */
+/* otherwise, A(i,j) = ALPHA, 1<=i<=m, 1<=j<=n, i.ne.j, */
+
+/* and, for all UPLO, A(i,i) = BETA, 1<=i<=min(m,n). */
+
+/* LDA (input) INTEGER */
+/* The leading dimension of the array A. LDA >= max(1,M). */
+
+/* ===================================================================== */
+
+/* .. Local Scalars .. */
+/* .. */
+/* .. External Functions .. */
+/* .. */
+/* .. Intrinsic Functions .. */
+/* .. */
+/* .. Executable Statements .. */
+
+ /* Parameter adjustments */
+ a_dim1 = *lda;
+ a_offset = 1 + a_dim1;
+ a -= a_offset;
+
+ /* Function Body */
+ if (lsame_(uplo, "U")) {
+
+/* Set the strictly upper triangular or trapezoidal part of the */
+/* array to ALPHA. */
+
+ i__1 = *n;
+ for (j = 2; j <= i__1; ++j) {
+/* Computing MIN */
+ i__3 = j - 1;
+ i__2 = min(i__3,*m);
+ for (i__ = 1; i__ <= i__2; ++i__) {
+ a[i__ + j * a_dim1] = *alpha;
+/* L10: */
+ }
+/* L20: */
+ }
+
+ } else if (lsame_(uplo, "L")) {
+
+/* Set the strictly lower triangular or trapezoidal part of the */
+/* array to ALPHA. */
+
+ i__1 = min(*m,*n);
+ for (j = 1; j <= i__1; ++j) {
+ i__2 = *m;
+ for (i__ = j + 1; i__ <= i__2; ++i__) {
+ a[i__ + j * a_dim1] = *alpha;
+/* L30: */
+ }
+/* L40: */
+ }
+
+ } else {
+
+/* Set the leading m-by-n submatrix to ALPHA. */
+
+ i__1 = *n;
+ for (j = 1; j <= i__1; ++j) {
+ i__2 = *m;
+ for (i__ = 1; i__ <= i__2; ++i__) {
+ a[i__ + j * a_dim1] = *alpha;
+/* L50: */
+ }
+/* L60: */
+ }
+ }
+
+/* Set the first min(M,N) diagonal elements to BETA. */
+
+ i__1 = min(*m,*n);
+ for (i__ = 1; i__ <= i__1; ++i__) {
+ a[i__ + i__ * a_dim1] = *beta;
+/* L70: */
+ }
+
+ return 0;
+
+/* End of SLASET */
+
+} /* slaset_ */