171 integer a_dim1, a_offset, c_dim1, c_offset, i__1, i__2, i__4, i__5;
180 integer i1, i2, i3, ib, ic, jc, nb, mi, ni, nq, nw, iws;
182 extern logical lsame_(
char *,
char *);
185 int zunm2r_fla(
char *,
char *,
integer *,
integer *,
integer *,
doublecomplex *,
integer *,
doublecomplex *,
doublecomplex *,
integer *,
doublecomplex *,
integer *), xerbla_(
char *,
integer *);
188 int zlarfb_(
char *,
char *,
char *,
char *,
integer *,
integer *,
integer *,
doublecomplex *,
integer *,
doublecomplex *,
integer *,
doublecomplex *,
integer *,
doublecomplex *,
integer *);
220 a_offset = 1 + a_dim1;
224 c_offset = 1 + c_dim1;
229 left = lsame_(side,
"L");
230 notran = lsame_(trans,
"N");
231 lquery = *lwork == -1;
243 if (! left && ! lsame_(side,
"R"))
247 else if (! notran && ! lsame_(trans,
"C"))
259 else if (*k < 0 || *k > nq)
263 else if (*lda < max(1,nq))
267 else if (*ldc < max(1,*m))
271 else if (*lwork < max(1,nw) && ! lquery)
281 i__2 = ilaenv_(&c__1,
"ZUNMQR", ch__1, m, n, k, &c_n1);
283 lwkopt = max(1,nw) * nb;
290 xerbla_(
"ZUNMQR", &i__1);
298 if (*m == 0 || *n == 0 || *k == 0)
306 if (nb > 1 && nb < *k)
311 nb = *lwork / ldwork;
314 i__2 = ilaenv_(&c__2,
"ZUNMQR", ch__1, m, n, k, &c_n1);
315 nbmin = max(i__1,i__2);
322 if (nb < nbmin || nb >= *k)
325 zunm2r_fla(side, trans, m, n, k, &a[a_offset], lda, &tau[1], &c__[ c_offset], ldc, &work[1], &iinfo);
330 if (left && ! notran || ! left && notran)
338 i1 = (*k - 1) / nb * nb + 1;
355 i__2 < 0 ? i__ >= i__1 : i__ <= i__1;
365 zlarft_(
"Forward",
"Columnwise", &i__4, &ib, &a[i__ + i__ * a_dim1], lda, &tau[i__], t, &c__65) ;
379 zlarfb_(side, trans,
"Forward",
"Columnwise", &mi, &ni, &ib, &a[ i__ + i__ * a_dim1], lda, t, &c__65, &c__[ic + jc * c_dim1], ldc, &work[1], &ldwork);
doublereal r
Definition: FLA_f2c.h:33
int zunm2r_fla(char *side, char *trans, integer *m, integer *n, integer *k, doublecomplex *a, integer *lda, doublecomplex *tau, doublecomplex *c__, integer *ldc, doublecomplex *work, integer *info)
Definition: zunm2r.c:151
double doublereal
Definition: FLA_f2c.h:31
doublereal i
Definition: FLA_f2c.h:33
int logical
Definition: FLA_f2c.h:36
int integer
Definition: FLA_f2c.h:25