/* Subroutine */ int dpptri_(char *uplo, integer *n, doublereal *ap, integer *
info)
{
/* System generated locals */
integer i__1, i__2;
/* Local variables */
integer j, jc, jj;
doublereal ajj;
integer jjn;
logical upper;
/* -- LAPACK routine (version 3.2) -- */
/* November 2006 */
/* Purpose */
/* ======= */
/* DPPTRI computes the inverse of a real symmetric positive definite */
/* matrix A using the Cholesky factorization A = U**T*U or A = L*L**T */
/* computed by DPPTRF. */
/* Arguments */
/* ========= */
/* UPLO (input) CHARACTER*1 */
/* = 'U': Upper triangular factor is stored in AP; */
/* = 'L': Lower triangular factor is stored in AP. */
/* N (input) INTEGER */
/* The order of the matrix A. N >= 0. */
/* AP (input/output) DOUBLE PRECISION array, dimension (N*(N+1)/2) */
/* On entry, the triangular factor U or L from the Cholesky */
/* factorization A = U**T*U or A = L*L**T, packed columnwise as */
/* a linear array. The j-th column of U or L is stored in the */
/* array AP as follows: */
/* if UPLO = 'U', AP(i + (j-1)*j/2) = U(i,j) for 1<=i<=j; */
/* if UPLO = 'L', AP(i + (j-1)*(2n-j)/2) = L(i,j) for j<=i<=n. */
/* On exit, the upper or lower triangle of the (symmetric) */
/* inverse of A, overwriting the input factor U or L. */
/* INFO (output) INTEGER */
/* = 0: successful exit */
/* < 0: if INFO = -i, the i-th argument had an illegal value */
/* > 0: if INFO = i, the (i,i) element of the factor U or L is */
/* zero, and the inverse could not be computed. */
/* ===================================================================== */
/* Test the input parameters. */
/* Parameter adjustments */
--ap;
/* Function Body */
*info = 0;
upper = lsame_(uplo, "U");
if (! upper && ! lsame_(uplo, "L")) {
*info = -1;
} else if (*n < 0) {
*info = -2;
}
if (*info != 0) {
i__1 = -(*info);
xerbla_("DPPTRI", &i__1);
return 0;
}
/* Quick return if possible */
if (*n == 0) {
return 0;
}
/* Invert the triangular Cholesky factor U or L. */
dtptri_(uplo, "Non-unit", n, &ap[1], info);
if (*info > 0) {
return 0;
}
if (upper) {
/* Compute the product inv(U) * inv(U)'. */
jj = 0;
i__1 = *n;
for (j = 1; j <= i__1; ++j) {
jc = jj + 1;
jj += j;
if (j > 1) {
i__2 = j - 1;
dspr_("Upper", &i__2, &c_b8, &ap[jc], &c__1, &ap[1]);
}
ajj = ap[jj];
dscal_(&j, &ajj, &ap[jc], &c__1);
}
} else {
/* Compute the product inv(L)' * inv(L). */
jj = 1;
i__1 = *n;
for (j = 1; j <= i__1; ++j) {
jjn = jj + *n - j + 1;
i__2 = *n - j + 1;
ap[jj] = ddot_(&i__2, &ap[jj], &c__1, &ap[jj], &c__1);
if (j < *n) {
i__2 = *n - j;
dtpmv_("Lower", "Transpose", "Non-unit", &i__2, &ap[jjn], &ap[
jj + 1], &c__1);
}
jj = jjn;
}
}
return 0;
/* End of DPPTRI */
} /* dpptri_ */
/* Subroutine */
int dpptri_(char *uplo, integer *n, doublereal *ap, integer * info)
{
/* System generated locals */
integer i__1, i__2;
/* Local variables */
integer j, jc, jj;
doublereal ajj;
integer jjn;
extern doublereal ddot_(integer *, doublereal *, integer *, doublereal *, integer *);
extern /* Subroutine */
int dspr_(char *, integer *, doublereal *, doublereal *, integer *, doublereal *), dscal_(integer *, doublereal *, doublereal *, integer *);
extern logical lsame_(char *, char *);
extern /* Subroutine */
int dtpmv_(char *, char *, char *, integer *, doublereal *, doublereal *, integer *);
logical upper;
extern /* Subroutine */
int xerbla_(char *, integer *), dtptri_( char *, char *, integer *, doublereal *, integer *);
/* -- LAPACK computational routine (version 3.4.0) -- */
/* -- LAPACK is a software package provided by Univ. of Tennessee, -- */
/* -- Univ. of California Berkeley, Univ. of Colorado Denver and NAG Ltd..-- */
/* November 2011 */
/* .. Scalar Arguments .. */
/* .. */
/* .. Array Arguments .. */
/* .. */
/* ===================================================================== */
/* .. Parameters .. */
/* .. */
/* .. Local Scalars .. */
/* .. */
/* .. External Functions .. */
/* .. */
/* .. External Subroutines .. */
/* .. */
/* .. Executable Statements .. */
/* Test the input parameters. */
/* Parameter adjustments */
--ap;
/* Function Body */
*info = 0;
upper = lsame_(uplo, "U");
if (! upper && ! lsame_(uplo, "L"))
{
*info = -1;
}
else if (*n < 0)
{
*info = -2;
}
if (*info != 0)
{
i__1 = -(*info);
xerbla_("DPPTRI", &i__1);
return 0;
}
/* Quick return if possible */
if (*n == 0)
{
return 0;
}
/* Invert the triangular Cholesky factor U or L. */
dtptri_(uplo, "Non-unit", n, &ap[1], info);
if (*info > 0)
{
return 0;
}
if (upper)
{
/* Compute the product inv(U) * inv(U)**T. */
jj = 0;
i__1 = *n;
for (j = 1;
j <= i__1;
++j)
{
jc = jj + 1;
jj += j;
if (j > 1)
{
i__2 = j - 1;
dspr_("Upper", &i__2, &c_b8, &ap[jc], &c__1, &ap[1]);
}
ajj = ap[jj];
dscal_(&j, &ajj, &ap[jc], &c__1);
/* L10: */
}
}
else
{
/* Compute the product inv(L)**T * inv(L). */
jj = 1;
i__1 = *n;
for (j = 1;
j <= i__1;
++j)
{
jjn = jj + *n - j + 1;
i__2 = *n - j + 1;
ap[jj] = ddot_(&i__2, &ap[jj], &c__1, &ap[jj], &c__1);
if (j < *n)
{
i__2 = *n - j;
dtpmv_("Lower", "Transpose", "Non-unit", &i__2, &ap[jjn], &ap[ jj + 1], &c__1);
}
jj = jjn;
/* L20: */
}
}
return 0;
/* End of DPPTRI */
}
/* Subroutine */ int dchktp_(logical *dotype, integer *nn, integer *nval,
integer *nns, integer *nsval, doublereal *thresh, logical *tsterr,
integer *nmax, doublereal *ap, doublereal *ainvp, doublereal *b,
doublereal *x, doublereal *xact, doublereal *work, doublereal *rwork,
integer *iwork, integer *nout)
{
/* Initialized data */
static integer iseedy[4] = { 1988,1989,1990,1991 };
static char uplos[1*2] = "U" "L";
static char transs[1*3] = "N" "T" "C";
/* Format strings */
static char fmt_9999[] = "(\002 UPLO='\002,a1,\002', DIAG='\002,a1,\002'"
", N=\002,i5,\002, type \002,i2,\002, test(\002,i2,\002)= \002,g1"
"2.5)";
static char fmt_9998[] = "(\002 UPLO='\002,a1,\002', TRANS='\002,a1,\002"
"', DIAG='\002,a1,\002', N=\002,i5,\002', NRHS=\002,i5,\002, type "
"\002,i2,\002, test(\002,i2,\002)= \002,g12.5)";
static char fmt_9997[] = "(1x,a,\002( '\002,a1,\002', '\002,a1,\002', "
"'\002,a1,\002',\002,i5,\002, ... ), type \002,i2,\002, test(\002"
",i2,\002)=\002,g12.5)";
static char fmt_9996[] = "(1x,a,\002( '\002,a1,\002', '\002,a1,\002', "
"'\002,a1,\002', '\002,a1,\002',\002,i5,\002, ... ), type \002,i2,"
"\002, test(\002,i2,\002)=\002,g12.5)";
/* System generated locals */
address a__1[2], a__2[3], a__3[4];
integer i__1, i__2[2], i__3, i__4[3], i__5[4];
char ch__1[2], ch__2[3], ch__3[4];
/* Builtin functions */
/* Subroutine */ int s_copy(char *, char *, ftnlen, ftnlen), s_cat(char *,
char **, integer *, integer *, ftnlen);
integer s_wsfe(cilist *), do_fio(integer *, char *, ftnlen), e_wsfe(void);
/* Local variables */
integer i__, k, n, in, lda, lap;
char diag[1];
integer imat, info;
char path[3];
integer irhs, nrhs;
char norm[1], uplo[1];
integer nrun;
extern /* Subroutine */ int alahd_(integer *, char *);
integer idiag;
doublereal scale;
extern /* Subroutine */ int dget04_(integer *, integer *, doublereal *,
integer *, doublereal *, integer *, doublereal *, doublereal *);
integer nfail, iseed[4];
extern logical lsame_(char *, char *);
doublereal rcond, anorm;
integer itran;
extern /* Subroutine */ int dcopy_(integer *, doublereal *, integer *,
doublereal *, integer *), dtpt01_(char *, char *, integer *,
doublereal *, doublereal *, doublereal *, doublereal *,
doublereal *), dtpt02_(char *, char *, char *,
integer *, integer *, doublereal *, doublereal *, integer *,
doublereal *, integer *, doublereal *, doublereal *), dtpt03_(char *, char *, char *, integer *,
integer *, doublereal *, doublereal *, doublereal *, doublereal *,
doublereal *, integer *, doublereal *, integer *, doublereal *,
doublereal *), dtpt05_(char *, char *,
char *, integer *, integer *, doublereal *, doublereal *, integer
*, doublereal *, integer *, doublereal *, integer *, doublereal *,
doublereal *, doublereal *), dtpt06_(
doublereal *, doublereal *, char *, char *, integer *, doublereal
*, doublereal *, doublereal *);
char trans[1];
integer iuplo, nerrs;
char xtype[1];
extern /* Subroutine */ int alaerh_(char *, char *, integer *, integer *,
char *, integer *, integer *, integer *, integer *, integer *,
integer *, integer *, integer *, integer *);
doublereal rcondc;
extern /* Subroutine */ int dlacpy_(char *, integer *, integer *,
doublereal *, integer *, doublereal *, integer *);
doublereal rcondi;
extern /* Subroutine */ int dlarhs_(char *, char *, char *, char *,
integer *, integer *, integer *, integer *, integer *, doublereal
*, integer *, doublereal *, integer *, doublereal *, integer *,
integer *, integer *);
extern doublereal dlantp_(char *, char *, char *, integer *, doublereal *,
doublereal *);
doublereal rcondo;
extern /* Subroutine */ int alasum_(char *, integer *, integer *, integer
*, integer *), dlatps_(char *, char *, char *, char *,
integer *, doublereal *, doublereal *, doublereal *, doublereal *,
integer *);
doublereal ainvnm;
extern /* Subroutine */ int dlattp_(integer *, char *, char *, char *,
integer *, integer *, doublereal *, doublereal *, doublereal *,
integer *), dtpcon_(char *, char *, char *
, integer *, doublereal *, doublereal *, doublereal *, integer *,
integer *), derrtr_(char *, integer *), dtprfs_(char *, char *, char *, integer *, integer *,
doublereal *, doublereal *, integer *, doublereal *, integer *,
doublereal *, doublereal *, doublereal *, integer *, integer *), dtptri_(char *, char *, integer *,
doublereal *, integer *);
doublereal result[9];
extern /* Subroutine */ int dtptrs_(char *, char *, char *, integer *,
integer *, doublereal *, doublereal *, integer *, integer *);
/* Fortran I/O blocks */
static cilist io___26 = { 0, 0, 0, fmt_9999, 0 };
static cilist io___34 = { 0, 0, 0, fmt_9998, 0 };
static cilist io___36 = { 0, 0, 0, fmt_9997, 0 };
static cilist io___38 = { 0, 0, 0, fmt_9996, 0 };
static cilist io___39 = { 0, 0, 0, fmt_9996, 0 };
/* -- LAPACK test routine (version 3.1) -- */
/* Univ. of Tennessee, Univ. of California Berkeley and NAG Ltd.. */
/* November 2006 */
/* .. Scalar Arguments .. */
/* .. */
/* .. Array Arguments .. */
/* .. */
/* Purpose */
/* ======= */
/* DCHKTP tests DTPTRI, -TRS, -RFS, and -CON, and DLATPS */
/* Arguments */
/* ========= */
/* DOTYPE (input) LOGICAL array, dimension (NTYPES) */
/* The matrix types to be used for testing. Matrices of type j */
/* (for 1 <= j <= NTYPES) are used for testing if DOTYPE(j) = */
/* .TRUE.; if DOTYPE(j) = .FALSE., then type j is not used. */
/* NN (input) INTEGER */
/* The number of values of N contained in the vector NVAL. */
/* NVAL (input) INTEGER array, dimension (NN) */
/* The values of the matrix column dimension N. */
/* NNS (input) INTEGER */
/* The number of values of NRHS contained in the vector NSVAL. */
/* NSVAL (input) INTEGER array, dimension (NNS) */
/* The values of the number of right hand sides NRHS. */
/* THRESH (input) DOUBLE PRECISION */
/* The threshold value for the test ratios. A result is */
/* included in the output file if RESULT >= THRESH. To have */
/* every test ratio printed, use THRESH = 0. */
/* TSTERR (input) LOGICAL */
/* Flag that indicates whether error exits are to be tested. */
/* NMAX (input) INTEGER */
/* The leading dimension of the work arrays. NMAX >= the */
/* maximumm value of N in NVAL. */
/* AP (workspace) DOUBLE PRECISION array, dimension */
/* (NMAX*(NMAX+1)/2) */
/* AINVP (workspace) DOUBLE PRECISION array, dimension */
/* (NMAX*(NMAX+1)/2) */
/* B (workspace) DOUBLE PRECISION array, dimension (NMAX*NSMAX) */
/* where NSMAX is the largest entry in NSVAL. */
/* X (workspace) DOUBLE PRECISION array, dimension (NMAX*NSMAX) */
/* XACT (workspace) DOUBLE PRECISION array, dimension (NMAX*NSMAX) */
/* WORK (workspace) DOUBLE PRECISION array, dimension */
/* (NMAX*max(3,NSMAX)) */
/* IWORK (workspace) INTEGER array, dimension (NMAX) */
/* RWORK (workspace) DOUBLE PRECISION array, dimension */
/* (max(NMAX,2*NSMAX)) */
/* NOUT (input) INTEGER */
/* The unit number for output. */
/* ===================================================================== */
/* .. Parameters .. */
/* .. */
/* .. Local Scalars .. */
/* .. */
/* .. Local Arrays .. */
/* .. */
/* .. External Functions .. */
/* .. */
/* .. External Subroutines .. */
/* .. */
/* .. Scalars in Common .. */
/* .. */
/* .. Common blocks .. */
/* .. */
/* .. Intrinsic Functions .. */
/* .. */
/* .. Data statements .. */
/* Parameter adjustments */
--iwork;
--rwork;
--work;
--xact;
--x;
--b;
--ainvp;
--ap;
--nsval;
--nval;
--dotype;
/* Function Body */
/* .. */
/* .. Executable Statements .. */
/* Initialize constants and the random number seed. */
s_copy(path, "Double precision", (ftnlen)1, (ftnlen)16);
s_copy(path + 1, "TP", (ftnlen)2, (ftnlen)2);
nrun = 0;
nfail = 0;
nerrs = 0;
for (i__ = 1; i__ <= 4; ++i__) {
iseed[i__ - 1] = iseedy[i__ - 1];
/* L10: */
}
/* Test the error exits */
if (*tsterr) {
derrtr_(path, nout);
}
infoc_1.infot = 0;
i__1 = *nn;
for (in = 1; in <= i__1; ++in) {
/* Do for each value of N in NVAL */
n = nval[in];
lda = max(1,n);
lap = lda * (lda + 1) / 2;
*(unsigned char *)xtype = 'N';
for (imat = 1; imat <= 10; ++imat) {
/* Do the tests only if DOTYPE( IMAT ) is true. */
if (! dotype[imat]) {
goto L70;
}
for (iuplo = 1; iuplo <= 2; ++iuplo) {
/* Do first for UPLO = 'U', then for UPLO = 'L' */
*(unsigned char *)uplo = *(unsigned char *)&uplos[iuplo - 1];
/* Call DLATTP to generate a triangular test matrix. */
s_copy(srnamc_1.srnamt, "DLATTP", (ftnlen)32, (ftnlen)6);
dlattp_(&imat, uplo, "No transpose", diag, iseed, &n, &ap[1],
&x[1], &work[1], &info);
/* Set IDIAG = 1 for non-unit matrices, 2 for unit. */
if (lsame_(diag, "N")) {
idiag = 1;
} else {
idiag = 2;
}
/* + TEST 1 */
/* Form the inverse of A. */
if (n > 0) {
dcopy_(&lap, &ap[1], &c__1, &ainvp[1], &c__1);
}
s_copy(srnamc_1.srnamt, "DTPTRI", (ftnlen)32, (ftnlen)6);
dtptri_(uplo, diag, &n, &ainvp[1], &info);
/* Check error code from DTPTRI. */
if (info != 0) {
/* Writing concatenation */
i__2[0] = 1, a__1[0] = uplo;
i__2[1] = 1, a__1[1] = diag;
s_cat(ch__1, a__1, i__2, &c__2, (ftnlen)2);
alaerh_(path, "DTPTRI", &info, &c__0, ch__1, &n, &n, &
c_n1, &c_n1, &c_n1, &imat, &nfail, &nerrs, nout);
}
/* Compute the infinity-norm condition number of A. */
anorm = dlantp_("I", uplo, diag, &n, &ap[1], &rwork[1]);
ainvnm = dlantp_("I", uplo, diag, &n, &ainvp[1], &rwork[1]);
if (anorm <= 0. || ainvnm <= 0.) {
rcondi = 1.;
} else {
rcondi = 1. / anorm / ainvnm;
}
/* Compute the residual for the triangular matrix times its */
/* inverse. Also compute the 1-norm condition number of A. */
dtpt01_(uplo, diag, &n, &ap[1], &ainvp[1], &rcondo, &rwork[1],
result);
/* Print the test ratio if it is .GE. THRESH. */
if (result[0] >= *thresh) {
if (nfail == 0 && nerrs == 0) {
alahd_(nout, path);
}
io___26.ciunit = *nout;
s_wsfe(&io___26);
do_fio(&c__1, uplo, (ftnlen)1);
do_fio(&c__1, diag, (ftnlen)1);
do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&imat, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&c__1, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&result[0], (ftnlen)sizeof(
doublereal));
e_wsfe();
++nfail;
}
++nrun;
i__3 = *nns;
for (irhs = 1; irhs <= i__3; ++irhs) {
nrhs = nsval[irhs];
*(unsigned char *)xtype = 'N';
for (itran = 1; itran <= 3; ++itran) {
/* Do for op(A) = A, A**T, or A**H. */
*(unsigned char *)trans = *(unsigned char *)&transs[
itran - 1];
if (itran == 1) {
*(unsigned char *)norm = 'O';
rcondc = rcondo;
} else {
*(unsigned char *)norm = 'I';
rcondc = rcondi;
}
/* + TEST 2 */
/* Solve and compute residual for op(A)*x = b. */
s_copy(srnamc_1.srnamt, "DLARHS", (ftnlen)32, (ftnlen)
6);
dlarhs_(path, xtype, uplo, trans, &n, &n, &c__0, &
idiag, &nrhs, &ap[1], &lap, &xact[1], &lda, &
b[1], &lda, iseed, &info);
*(unsigned char *)xtype = 'C';
dlacpy_("Full", &n, &nrhs, &b[1], &lda, &x[1], &lda);
s_copy(srnamc_1.srnamt, "DTPTRS", (ftnlen)32, (ftnlen)
6);
dtptrs_(uplo, trans, diag, &n, &nrhs, &ap[1], &x[1], &
lda, &info);
/* Check error code from DTPTRS. */
if (info != 0) {
/* Writing concatenation */
i__4[0] = 1, a__2[0] = uplo;
i__4[1] = 1, a__2[1] = trans;
i__4[2] = 1, a__2[2] = diag;
s_cat(ch__2, a__2, i__4, &c__3, (ftnlen)3);
alaerh_(path, "DTPTRS", &info, &c__0, ch__2, &n, &
n, &c_n1, &c_n1, &c_n1, &imat, &nfail, &
nerrs, nout);
}
dtpt02_(uplo, trans, diag, &n, &nrhs, &ap[1], &x[1], &
lda, &b[1], &lda, &work[1], &result[1]);
/* + TEST 3 */
/* Check solution from generated exact solution. */
dget04_(&n, &nrhs, &x[1], &lda, &xact[1], &lda, &
rcondc, &result[2]);
/* + TESTS 4, 5, and 6 */
/* Use iterative refinement to improve the solution and */
/* compute error bounds. */
s_copy(srnamc_1.srnamt, "DTPRFS", (ftnlen)32, (ftnlen)
6);
dtprfs_(uplo, trans, diag, &n, &nrhs, &ap[1], &b[1], &
lda, &x[1], &lda, &rwork[1], &rwork[nrhs + 1],
&work[1], &iwork[1], &info);
/* Check error code from DTPRFS. */
if (info != 0) {
/* Writing concatenation */
i__4[0] = 1, a__2[0] = uplo;
i__4[1] = 1, a__2[1] = trans;
i__4[2] = 1, a__2[2] = diag;
s_cat(ch__2, a__2, i__4, &c__3, (ftnlen)3);
alaerh_(path, "DTPRFS", &info, &c__0, ch__2, &n, &
n, &c_n1, &c_n1, &nrhs, &imat, &nfail, &
nerrs, nout);
}
dget04_(&n, &nrhs, &x[1], &lda, &xact[1], &lda, &
rcondc, &result[3]);
dtpt05_(uplo, trans, diag, &n, &nrhs, &ap[1], &b[1], &
lda, &x[1], &lda, &xact[1], &lda, &rwork[1], &
rwork[nrhs + 1], &result[4]);
/* Print information about the tests that did not pass */
/* the threshold. */
for (k = 2; k <= 6; ++k) {
if (result[k - 1] >= *thresh) {
if (nfail == 0 && nerrs == 0) {
alahd_(nout, path);
}
io___34.ciunit = *nout;
s_wsfe(&io___34);
do_fio(&c__1, uplo, (ftnlen)1);
do_fio(&c__1, trans, (ftnlen)1);
do_fio(&c__1, diag, (ftnlen)1);
do_fio(&c__1, (char *)&n, (ftnlen)sizeof(
integer));
do_fio(&c__1, (char *)&nrhs, (ftnlen)sizeof(
integer));
do_fio(&c__1, (char *)&imat, (ftnlen)sizeof(
integer));
do_fio(&c__1, (char *)&k, (ftnlen)sizeof(
integer));
do_fio(&c__1, (char *)&result[k - 1], (ftnlen)
sizeof(doublereal));
e_wsfe();
++nfail;
}
/* L20: */
}
nrun += 5;
/* L30: */
}
/* L40: */
}
/* + TEST 7 */
/* Get an estimate of RCOND = 1/CNDNUM. */
for (itran = 1; itran <= 2; ++itran) {
if (itran == 1) {
*(unsigned char *)norm = 'O';
rcondc = rcondo;
} else {
*(unsigned char *)norm = 'I';
rcondc = rcondi;
}
s_copy(srnamc_1.srnamt, "DTPCON", (ftnlen)32, (ftnlen)6);
dtpcon_(norm, uplo, diag, &n, &ap[1], &rcond, &work[1], &
iwork[1], &info);
/* Check error code from DTPCON. */
if (info != 0) {
/* Writing concatenation */
i__4[0] = 1, a__2[0] = norm;
i__4[1] = 1, a__2[1] = uplo;
i__4[2] = 1, a__2[2] = diag;
s_cat(ch__2, a__2, i__4, &c__3, (ftnlen)3);
alaerh_(path, "DTPCON", &info, &c__0, ch__2, &n, &n, &
c_n1, &c_n1, &c_n1, &imat, &nfail, &nerrs,
nout);
}
dtpt06_(&rcond, &rcondc, uplo, diag, &n, &ap[1], &rwork[1]
, &result[6]);
/* Print the test ratio if it is .GE. THRESH. */
if (result[6] >= *thresh) {
if (nfail == 0 && nerrs == 0) {
alahd_(nout, path);
}
io___36.ciunit = *nout;
s_wsfe(&io___36);
do_fio(&c__1, "DTPCON", (ftnlen)6);
do_fio(&c__1, norm, (ftnlen)1);
do_fio(&c__1, uplo, (ftnlen)1);
do_fio(&c__1, diag, (ftnlen)1);
do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&imat, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&c__7, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&result[6], (ftnlen)sizeof(
doublereal));
e_wsfe();
++nfail;
}
++nrun;
/* L50: */
}
/* L60: */
}
L70:
;
}
/* Use pathological test matrices to test DLATPS. */
for (imat = 11; imat <= 18; ++imat) {
/* Do the tests only if DOTYPE( IMAT ) is true. */
if (! dotype[imat]) {
goto L100;
}
for (iuplo = 1; iuplo <= 2; ++iuplo) {
/* Do first for UPLO = 'U', then for UPLO = 'L' */
*(unsigned char *)uplo = *(unsigned char *)&uplos[iuplo - 1];
for (itran = 1; itran <= 3; ++itran) {
/* Do for op(A) = A, A**T, or A**H. */
*(unsigned char *)trans = *(unsigned char *)&transs[itran
- 1];
/* Call DLATTP to generate a triangular test matrix. */
s_copy(srnamc_1.srnamt, "DLATTP", (ftnlen)32, (ftnlen)6);
dlattp_(&imat, uplo, trans, diag, iseed, &n, &ap[1], &x[1]
, &work[1], &info);
/* + TEST 8 */
/* Solve the system op(A)*x = b. */
s_copy(srnamc_1.srnamt, "DLATPS", (ftnlen)32, (ftnlen)6);
dcopy_(&n, &x[1], &c__1, &b[1], &c__1);
dlatps_(uplo, trans, diag, "N", &n, &ap[1], &b[1], &scale,
&rwork[1], &info);
/* Check error code from DLATPS. */
if (info != 0) {
/* Writing concatenation */
i__5[0] = 1, a__3[0] = uplo;
i__5[1] = 1, a__3[1] = trans;
i__5[2] = 1, a__3[2] = diag;
i__5[3] = 1, a__3[3] = "N";
s_cat(ch__3, a__3, i__5, &c__4, (ftnlen)4);
alaerh_(path, "DLATPS", &info, &c__0, ch__3, &n, &n, &
c_n1, &c_n1, &c_n1, &imat, &nfail, &nerrs,
nout);
}
dtpt03_(uplo, trans, diag, &n, &c__1, &ap[1], &scale, &
rwork[1], &c_b103, &b[1], &lda, &x[1], &lda, &
work[1], &result[7]);
/* + TEST 9 */
/* Solve op(A)*x = b again with NORMIN = 'Y'. */
dcopy_(&n, &x[1], &c__1, &b[n + 1], &c__1);
dlatps_(uplo, trans, diag, "Y", &n, &ap[1], &b[n + 1], &
scale, &rwork[1], &info);
/* Check error code from DLATPS. */
if (info != 0) {
/* Writing concatenation */
i__5[0] = 1, a__3[0] = uplo;
i__5[1] = 1, a__3[1] = trans;
i__5[2] = 1, a__3[2] = diag;
i__5[3] = 1, a__3[3] = "Y";
s_cat(ch__3, a__3, i__5, &c__4, (ftnlen)4);
alaerh_(path, "DLATPS", &info, &c__0, ch__3, &n, &n, &
c_n1, &c_n1, &c_n1, &imat, &nfail, &nerrs,
nout);
}
dtpt03_(uplo, trans, diag, &n, &c__1, &ap[1], &scale, &
rwork[1], &c_b103, &b[n + 1], &lda, &x[1], &lda, &
work[1], &result[8]);
/* Print information about the tests that did not pass */
/* the threshold. */
if (result[7] >= *thresh) {
if (nfail == 0 && nerrs == 0) {
alahd_(nout, path);
}
io___38.ciunit = *nout;
s_wsfe(&io___38);
do_fio(&c__1, "DLATPS", (ftnlen)6);
do_fio(&c__1, uplo, (ftnlen)1);
do_fio(&c__1, trans, (ftnlen)1);
do_fio(&c__1, diag, (ftnlen)1);
do_fio(&c__1, "N", (ftnlen)1);
do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&imat, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&c__8, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&result[7], (ftnlen)sizeof(
doublereal));
e_wsfe();
++nfail;
}
if (result[8] >= *thresh) {
if (nfail == 0 && nerrs == 0) {
alahd_(nout, path);
}
io___39.ciunit = *nout;
s_wsfe(&io___39);
do_fio(&c__1, "DLATPS", (ftnlen)6);
do_fio(&c__1, uplo, (ftnlen)1);
do_fio(&c__1, trans, (ftnlen)1);
do_fio(&c__1, diag, (ftnlen)1);
do_fio(&c__1, "Y", (ftnlen)1);
do_fio(&c__1, (char *)&n, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&imat, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&c__9, (ftnlen)sizeof(integer));
do_fio(&c__1, (char *)&result[8], (ftnlen)sizeof(
doublereal));
e_wsfe();
++nfail;
}
nrun += 2;
/* L80: */
}
/* L90: */
}
L100:
;
}
/* L110: */
}
/* Print a summary of the results. */
alasum_(path, nout, &nfail, &nrun, &nerrs);
return 0;
/* End of DCHKTP */
} /* dchktp_ */