241 lines
6.4 KiB
C++
241 lines
6.4 KiB
C++
/* fortran/zlaset.f -- translated by f2c (version 20200916).
|
|
You must link the resulting object file with libf2c:
|
|
on Microsoft Windows system, link with libf2c.lib;
|
|
on Linux or Unix systems, link with .../path/to/libf2c.a -lm
|
|
or, if you install libf2c.a in a standard place, with -lf2c -lm
|
|
-- in that order, at the end of the command line, as in
|
|
cc *.o -lf2c -lm
|
|
Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
|
|
|
|
http://www.netlib.org/f2c/libf2c.zip
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
#include "lmp_f2c.h"
|
|
|
|
/* > \brief \b ZLASET initializes the off-diagonal elements and the diagonal elements of a matrix to given val
|
|
ues. */
|
|
|
|
/* =========== DOCUMENTATION =========== */
|
|
|
|
/* Online html documentation available at */
|
|
/* http://www.netlib.org/lapack/explore-html/ */
|
|
|
|
/* > \htmlonly */
|
|
/* > Download ZLASET + dependencies */
|
|
/* > <a href="http://www.netlib.org/cgi-bin/netlibfiles.tgz?format=tgz&filename=/lapack/lapack_routine/zlaset.
|
|
f"> */
|
|
/* > [TGZ]</a> */
|
|
/* > <a href="http://www.netlib.org/cgi-bin/netlibfiles.zip?format=zip&filename=/lapack/lapack_routine/zlaset.
|
|
f"> */
|
|
/* > [ZIP]</a> */
|
|
/* > <a href="http://www.netlib.org/cgi-bin/netlibfiles.txt?format=txt&filename=/lapack/lapack_routine/zlaset.
|
|
f"> */
|
|
/* > [TXT]</a> */
|
|
/* > \endhtmlonly */
|
|
|
|
/* Definition: */
|
|
/* =========== */
|
|
|
|
/* SUBROUTINE ZLASET( UPLO, M, N, ALPHA, BETA, A, LDA ) */
|
|
|
|
/* .. Scalar Arguments .. */
|
|
/* CHARACTER UPLO */
|
|
/* INTEGER LDA, M, N */
|
|
/* COMPLEX*16 ALPHA, BETA */
|
|
/* .. */
|
|
/* .. Array Arguments .. */
|
|
/* COMPLEX*16 A( LDA, * ) */
|
|
/* .. */
|
|
|
|
|
|
/* > \par Purpose: */
|
|
/* ============= */
|
|
/* > */
|
|
/* > \verbatim */
|
|
/* > */
|
|
/* > ZLASET initializes a 2-D array A to BETA on the diagonal and */
|
|
/* > ALPHA on the offdiagonals. */
|
|
/* > \endverbatim */
|
|
|
|
/* Arguments: */
|
|
/* ========== */
|
|
|
|
/* > \param[in] UPLO */
|
|
/* > \verbatim */
|
|
/* > UPLO is 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. */
|
|
/* > \endverbatim */
|
|
/* > */
|
|
/* > \param[in] M */
|
|
/* > \verbatim */
|
|
/* > M is INTEGER */
|
|
/* > On entry, M specifies the number of rows of A. */
|
|
/* > \endverbatim */
|
|
/* > */
|
|
/* > \param[in] N */
|
|
/* > \verbatim */
|
|
/* > N is INTEGER */
|
|
/* > On entry, N specifies the number of columns of A. */
|
|
/* > \endverbatim */
|
|
/* > */
|
|
/* > \param[in] ALPHA */
|
|
/* > \verbatim */
|
|
/* > ALPHA is COMPLEX*16 */
|
|
/* > All the offdiagonal array elements are set to ALPHA. */
|
|
/* > \endverbatim */
|
|
/* > */
|
|
/* > \param[in] BETA */
|
|
/* > \verbatim */
|
|
/* > BETA is COMPLEX*16 */
|
|
/* > All the diagonal array elements are set to BETA. */
|
|
/* > \endverbatim */
|
|
/* > */
|
|
/* > \param[out] A */
|
|
/* > \verbatim */
|
|
/* > A is 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) */
|
|
/* > \endverbatim */
|
|
/* > */
|
|
/* > \param[in] LDA */
|
|
/* > \verbatim */
|
|
/* > LDA is INTEGER */
|
|
/* > The leading dimension of the array A. LDA >= max(1,M). */
|
|
/* > \endverbatim */
|
|
|
|
/* Authors: */
|
|
/* ======== */
|
|
|
|
/* > \author Univ. of Tennessee */
|
|
/* > \author Univ. of California Berkeley */
|
|
/* > \author Univ. of Colorado Denver */
|
|
/* > \author NAG Ltd. */
|
|
|
|
/* > \ingroup complex16OTHERauxiliary */
|
|
|
|
/* ===================================================================== */
|
|
/* Subroutine */ int zlaset_(char *uplo, integer *m, integer *n,
|
|
doublecomplex *alpha, doublecomplex *beta, doublecomplex *a, integer *
|
|
lda, ftnlen uplo_len)
|
|
{
|
|
/* System generated locals */
|
|
integer a_dim1, a_offset, i__1, i__2, i__3;
|
|
|
|
/* Local variables */
|
|
integer i__, j;
|
|
extern logical lsame_(char *, char *, ftnlen, ftnlen);
|
|
|
|
|
|
/* -- LAPACK auxiliary routine -- */
|
|
/* -- LAPACK is a software package provided by Univ. of Tennessee, -- */
|
|
/* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- */
|
|
|
|
/* .. Scalar Arguments .. */
|
|
/* .. */
|
|
/* .. Array Arguments .. */
|
|
/* .. */
|
|
|
|
/* ===================================================================== */
|
|
|
|
/* .. 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, (char *)"U", (ftnlen)1, (ftnlen)1)) {
|
|
|
|
/* Set the diagonal to BETA and the strictly upper triangular */
|
|
/* 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__) {
|
|
i__3 = i__ + j * a_dim1;
|
|
a[i__3].r = alpha->r, a[i__3].i = alpha->i;
|
|
/* L10: */
|
|
}
|
|
/* L20: */
|
|
}
|
|
i__1 = min(*n,*m);
|
|
for (i__ = 1; i__ <= i__1; ++i__) {
|
|
i__2 = i__ + i__ * a_dim1;
|
|
a[i__2].r = beta->r, a[i__2].i = beta->i;
|
|
/* L30: */
|
|
}
|
|
|
|
} else if (lsame_(uplo, (char *)"L", (ftnlen)1, (ftnlen)1)) {
|
|
|
|
/* 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 <= i__1; ++j) {
|
|
i__2 = *m;
|
|
for (i__ = j + 1; i__ <= i__2; ++i__) {
|
|
i__3 = i__ + j * a_dim1;
|
|
a[i__3].r = alpha->r, a[i__3].i = alpha->i;
|
|
/* L40: */
|
|
}
|
|
/* L50: */
|
|
}
|
|
i__1 = min(*n,*m);
|
|
for (i__ = 1; i__ <= i__1; ++i__) {
|
|
i__2 = i__ + i__ * a_dim1;
|
|
a[i__2].r = beta->r, a[i__2].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 <= i__1; ++j) {
|
|
i__2 = *m;
|
|
for (i__ = 1; i__ <= i__2; ++i__) {
|
|
i__3 = i__ + j * a_dim1;
|
|
a[i__3].r = alpha->r, a[i__3].i = alpha->i;
|
|
/* L70: */
|
|
}
|
|
/* L80: */
|
|
}
|
|
i__1 = min(*m,*n);
|
|
for (i__ = 1; i__ <= i__1; ++i__) {
|
|
i__2 = i__ + i__ * a_dim1;
|
|
a[i__2].r = beta->r, a[i__2].i = beta->i;
|
|
/* L90: */
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
|
|
/* End of ZLASET */
|
|
|
|
} /* zlaset_ */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|