101 lines
2.7 KiB
C++
101 lines
2.7 KiB
C++
#ifdef __cplusplus
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extern "C" {
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#endif
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#include "lmp_f2c.h"
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static integer c__1 = 1;
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int zunm2r_(char *side, char *trans, integer *m, integer *n, integer *k, doublecomplex *a,
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integer *lda, doublecomplex *tau, doublecomplex *c__, integer *ldc, doublecomplex *work,
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integer *info, ftnlen side_len, ftnlen trans_len)
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{
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integer a_dim1, a_offset, c_dim1, c_offset, i__1, i__2, i__3;
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doublecomplex z__1;
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void d_lmp_cnjg(doublecomplex *, doublecomplex *);
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integer i__, i1, i2, i3, ic, jc, mi, ni, nq;
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logical left;
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doublecomplex taui;
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extern logical lsame_(char *, char *, ftnlen, ftnlen);
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extern int xerbla_(char *, integer *, ftnlen);
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logical notran;
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extern int zlarf1f_(char *, integer *, integer *, doublecomplex *, integer *, doublecomplex *,
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doublecomplex *, integer *, doublecomplex *, ftnlen);
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a_dim1 = *lda;
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a_offset = 1 + a_dim1;
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a -= a_offset;
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--tau;
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c_dim1 = *ldc;
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c_offset = 1 + c_dim1;
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c__ -= c_offset;
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--work;
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*info = 0;
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left = lsame_(side, (char *)"L", (ftnlen)1, (ftnlen)1);
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notran = lsame_(trans, (char *)"N", (ftnlen)1, (ftnlen)1);
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if (left) {
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nq = *m;
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} else {
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nq = *n;
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}
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if (!left && !lsame_(side, (char *)"R", (ftnlen)1, (ftnlen)1)) {
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*info = -1;
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} else if (!notran && !lsame_(trans, (char *)"C", (ftnlen)1, (ftnlen)1)) {
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*info = -2;
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} else if (*m < 0) {
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*info = -3;
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} else if (*n < 0) {
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*info = -4;
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} else if (*k < 0 || *k > nq) {
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*info = -5;
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} else if (*lda < max(1, nq)) {
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*info = -7;
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} else if (*ldc < max(1, *m)) {
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*info = -10;
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}
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if (*info != 0) {
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i__1 = -(*info);
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xerbla_((char *)"ZUNM2R", &i__1, (ftnlen)6);
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return 0;
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}
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if (*m == 0 || *n == 0 || *k == 0) {
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return 0;
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}
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if (left && !notran || !left && notran) {
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i1 = 1;
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i2 = *k;
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i3 = 1;
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} else {
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i1 = *k;
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i2 = 1;
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i3 = -1;
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}
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if (left) {
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ni = *n;
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jc = 1;
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} else {
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mi = *m;
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ic = 1;
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}
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i__1 = i2;
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i__2 = i3;
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for (i__ = i1; i__2 < 0 ? i__ >= i__1 : i__ <= i__1; i__ += i__2) {
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if (left) {
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mi = *m - i__ + 1;
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ic = i__;
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} else {
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ni = *n - i__ + 1;
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jc = i__;
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}
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if (notran) {
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i__3 = i__;
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taui.r = tau[i__3].r, taui.i = tau[i__3].i;
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} else {
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d_lmp_cnjg(&z__1, &tau[i__]);
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taui.r = z__1.r, taui.i = z__1.i;
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}
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zlarf1f_(side, &mi, &ni, &a[i__ + i__ * a_dim1], &c__1, &taui, &c__[ic + jc * c_dim1], ldc,
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&work[1], (ftnlen)1);
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}
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return 0;
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}
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#ifdef __cplusplus
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}
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#endif
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