{
integer a_dim1, a_offset, c_dim1, c_offset, i__1, i__2, i__4, i__5;
char ch__1[2];
integer i__;
real t[4160]
;
integer i1, i2, i3, ib, ic, jc, nb, mi, ni, nq, nw, iws;
logical left;
extern logical lsame_(char *, char *);
integer nbmin, iinfo;
extern
int sorml2_fla(char *, char *, integer *, integer *, integer *, real *, integer *, real *, real *, integer *, real *, integer *), slarfb_(char *, char *, char *, char * , integer *, integer *, integer *, real *, integer *, real *, integer *, real *, integer *, real *, integer *), xerbla_(char *, integer *);
extern integer ilaenv_(integer *, char *, char *, integer *, integer *, integer *, integer *);
extern
int slarft_(char *, char *, integer *, integer *, real *, integer *, real *, real *, integer *);
logical notran;
integer ldwork;
char transt[1];
integer lwkopt;
logical lquery;
a_dim1 = *lda;
a_offset = 1 + a_dim1;
a -= a_offset;
--tau;
c_dim1 = *ldc;
c_offset = 1 + c_dim1;
c__ -= c_offset;
--work;
*info = 0;
left = lsame_(side, "L");
notran = lsame_(trans, "N");
lquery = *lwork == -1;
if (left)
{
nq = *m;
nw = *n;
}
else
{
nq = *n;
nw = *m;
}
if (! left && ! lsame_(side, "R"))
{
*info = -1;
}
else if (! notran && ! lsame_(trans, "T"))
{
*info = -2;
}
else if (*m < 0)
{
*info = -3;
}
else if (*n < 0)
{
*info = -4;
}
else if (*k < 0 || *k > nq)
{
*info = -5;
}
else if (*lda < max(1,*k))
{
*info = -7;
}
else if (*ldc < max(1,*m))
{
*info = -10;
}
else if (*lwork < max(1,nw) && ! lquery)
{
*info = -12;
}
if (*info == 0)
{
i__1 = 64;
i__2 = ilaenv_(&c__1, "SORMLQ", ch__1, m, n, k, &c_n1);
nb = min(i__1,i__2);
lwkopt = max(1,nw) * nb;
work[1] = (real) lwkopt;
}
if (*info != 0)
{
i__1 = -(*info);
xerbla_("SORMLQ", &i__1);
return 0;
}
else if (lquery)
{
return 0;
}
if (*m == 0 || *n == 0 || *k == 0)
{
work[1] = 1.f;
return 0;
}
nbmin = 2;
ldwork = nw;
if (nb > 1 && nb < *k)
{
iws = nw * nb;
if (*lwork < iws)
{
nb = *lwork / ldwork;
i__1 = 2;
i__2 = ilaenv_(&c__2, "SORMLQ", ch__1, m, n, k, &c_n1);
nbmin = max(i__1,i__2);
}
}
else
{
iws = nw;
}
if (nb < nbmin || nb >= *k)
{
sorml2_fla(side, trans, m, n, k, &a[a_offset], lda, &tau[1], &c__[ c_offset], ldc, &work[1], &iinfo);
}
else
{
if (left && notran || ! left && ! notran)
{
i1 = 1;
i2 = *k;
i3 = nb;
}
else
{
i1 = (*k - 1) / nb * nb + 1;
i2 = 1;
i3 = -nb;
}
if (left)
{
ni = *n;
jc = 1;
}
else
{
mi = *m;
ic = 1;
}
if (notran)
{
*(unsigned char *)transt = 'T';
}
else
{
*(unsigned char *)transt = 'N';
}
i__1 = i2;
i__2 = i3;
for (i__ = i1;
i__2 < 0 ? i__ >= i__1 : i__ <= i__1;
i__ += i__2)
{
i__4 = nb;
i__5 = *k - i__ + 1;
ib = min(i__4,i__5);
i__4 = nq - i__ + 1;
slarft_("Forward", "Rowwise", &i__4, &ib, &a[i__ + i__ * a_dim1], lda, &tau[i__], t, &c__65);
if (left)
{
mi = *m - i__ + 1;
ic = i__;
}
else
{
ni = *n - i__ + 1;
jc = i__;
}
slarfb_(side, transt, "Forward", "Rowwise", &mi, &ni, &ib, &a[i__ + i__ * a_dim1], lda, t, &c__65, &c__[ic + jc * c_dim1], ldc, &work[1], &ldwork);
}
}
work[1] = (real) lwkopt;
return 0;
}