whitespace fixes
This commit is contained in:
Axel Kohlmeyer
@ -1,13 +1,13 @@
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/* fortran/dtrtri.f -- translated by f2c (version 20200916).
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You must link the resulting object file with libf2c:
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on Microsoft Windows system, link with libf2c.lib;
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on Linux or Unix systems, link with .../path/to/libf2c.a -lm
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or, if you install libf2c.a in a standard place, with -lf2c -lm
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-- in that order, at the end of the command line, as in
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cc *.o -lf2c -lm
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Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
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on Microsoft Windows system, link with libf2c.lib;
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on Linux or Unix systems, link with .../path/to/libf2c.a -lm
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or, if you install libf2c.a in a standard place, with -lf2c -lm
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-- in that order, at the end of the command line, as in
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cc *.o -lf2c -lm
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Source for libf2c is in /netlib/f2c/libf2c.zip, e.g.,
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http://www.netlib.org/f2c/libf2c.zip
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http://www.netlib.org/f2c/libf2c.zip
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*/
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#ifdef __cplusplus
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@ -134,7 +134,7 @@ f"> */
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/* ===================================================================== */
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/* Subroutine */ int dtrtri_(char *uplo, char *diag, integer *n, doublereal *
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a, integer *lda, integer *info, ftnlen uplo_len, ftnlen diag_len)
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a, integer *lda, integer *info, ftnlen uplo_len, ftnlen diag_len)
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{
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/* System generated locals */
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address a__1[2];
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@ -147,18 +147,18 @@ f"> */
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/* Local variables */
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integer j, jb, nb, nn;
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extern logical lsame_(char *, char *, ftnlen, ftnlen);
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extern /* Subroutine */ int dtrmm_(char *, char *, char *, char *,
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integer *, integer *, doublereal *, doublereal *, integer *,
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doublereal *, integer *, ftnlen, ftnlen, ftnlen, ftnlen), dtrsm_(
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char *, char *, char *, char *, integer *, integer *, doublereal *
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, doublereal *, integer *, doublereal *, integer *, ftnlen,
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ftnlen, ftnlen, ftnlen);
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extern /* Subroutine */ int dtrmm_(char *, char *, char *, char *,
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integer *, integer *, doublereal *, doublereal *, integer *,
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doublereal *, integer *, ftnlen, ftnlen, ftnlen, ftnlen), dtrsm_(
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char *, char *, char *, char *, integer *, integer *, doublereal *
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, doublereal *, integer *, doublereal *, integer *, ftnlen,
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ftnlen, ftnlen, ftnlen);
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logical upper;
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extern /* Subroutine */ int dtrti2_(char *, char *, integer *, doublereal
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*, integer *, integer *, ftnlen, ftnlen), xerbla_(char *, integer
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*, ftnlen);
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extern integer ilaenv_(integer *, char *, char *, integer *, integer *,
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integer *, integer *, ftnlen, ftnlen);
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extern /* Subroutine */ int dtrti2_(char *, char *, integer *, doublereal
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*, integer *, integer *, ftnlen, ftnlen), xerbla_(char *, integer
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*, ftnlen);
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extern integer ilaenv_(integer *, char *, char *, integer *, integer *,
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integer *, integer *, ftnlen, ftnlen);
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logical nounit;
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@ -197,37 +197,37 @@ f"> */
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upper = lsame_(uplo, (char *)"U", (ftnlen)1, (ftnlen)1);
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nounit = lsame_(diag, (char *)"N", (ftnlen)1, (ftnlen)1);
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if (! upper && ! lsame_(uplo, (char *)"L", (ftnlen)1, (ftnlen)1)) {
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*info = -1;
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*info = -1;
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} else if (! nounit && ! lsame_(diag, (char *)"U", (ftnlen)1, (ftnlen)1)) {
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*info = -2;
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*info = -2;
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} else if (*n < 0) {
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*info = -3;
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*info = -3;
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} else if (*lda < max(1,*n)) {
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*info = -5;
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*info = -5;
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}
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if (*info != 0) {
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i__1 = -(*info);
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xerbla_((char *)"DTRTRI", &i__1, (ftnlen)6);
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return 0;
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i__1 = -(*info);
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xerbla_((char *)"DTRTRI", &i__1, (ftnlen)6);
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return 0;
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}
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/* Quick return if possible */
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if (*n == 0) {
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return 0;
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return 0;
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}
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/* Check for singularity if non-unit. */
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if (nounit) {
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i__1 = *n;
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for (*info = 1; *info <= i__1; ++(*info)) {
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if (a[*info + *info * a_dim1] == 0.) {
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return 0;
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}
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i__1 = *n;
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for (*info = 1; *info <= i__1; ++(*info)) {
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if (a[*info + *info * a_dim1] == 0.) {
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return 0;
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}
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/* L10: */
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}
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*info = 0;
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}
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*info = 0;
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}
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/* Determine the block size for this environment. */
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@ -237,77 +237,77 @@ f"> */
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i__2[1] = 1, a__1[1] = diag;
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s_cat(ch__1, a__1, i__2, &c__2, (ftnlen)2);
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nb = ilaenv_(&c__1, (char *)"DTRTRI", ch__1, n, &c_n1, &c_n1, &c_n1, (ftnlen)6, (
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ftnlen)2);
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ftnlen)2);
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if (nb <= 1 || nb >= *n) {
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/* Use unblocked code */
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dtrti2_(uplo, diag, n, &a[a_offset], lda, info, (ftnlen)1, (ftnlen)1);
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dtrti2_(uplo, diag, n, &a[a_offset], lda, info, (ftnlen)1, (ftnlen)1);
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} else {
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/* Use blocked code */
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if (upper) {
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if (upper) {
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/* Compute inverse of upper triangular matrix */
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i__1 = *n;
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i__3 = nb;
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for (j = 1; i__3 < 0 ? j >= i__1 : j <= i__1; j += i__3) {
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i__1 = *n;
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i__3 = nb;
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for (j = 1; i__3 < 0 ? j >= i__1 : j <= i__1; j += i__3) {
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/* Computing MIN */
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i__4 = nb, i__5 = *n - j + 1;
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jb = min(i__4,i__5);
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i__4 = nb, i__5 = *n - j + 1;
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jb = min(i__4,i__5);
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/* Compute rows 1:j-1 of current block column */
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i__4 = j - 1;
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dtrmm_((char *)"Left", (char *)"Upper", (char *)"No transpose", diag, &i__4, &jb, &
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c_b18, &a[a_offset], lda, &a[j * a_dim1 + 1], lda, (
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ftnlen)4, (ftnlen)5, (ftnlen)12, (ftnlen)1);
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i__4 = j - 1;
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dtrsm_((char *)"Right", (char *)"Upper", (char *)"No transpose", diag, &i__4, &jb, &
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c_b22, &a[j + j * a_dim1], lda, &a[j * a_dim1 + 1],
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lda, (ftnlen)5, (ftnlen)5, (ftnlen)12, (ftnlen)1);
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i__4 = j - 1;
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dtrmm_((char *)"Left", (char *)"Upper", (char *)"No transpose", diag, &i__4, &jb, &
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c_b18, &a[a_offset], lda, &a[j * a_dim1 + 1], lda, (
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ftnlen)4, (ftnlen)5, (ftnlen)12, (ftnlen)1);
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i__4 = j - 1;
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dtrsm_((char *)"Right", (char *)"Upper", (char *)"No transpose", diag, &i__4, &jb, &
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c_b22, &a[j + j * a_dim1], lda, &a[j * a_dim1 + 1],
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lda, (ftnlen)5, (ftnlen)5, (ftnlen)12, (ftnlen)1);
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/* Compute inverse of current diagonal block */
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dtrti2_((char *)"Upper", diag, &jb, &a[j + j * a_dim1], lda, info, (
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ftnlen)5, (ftnlen)1);
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dtrti2_((char *)"Upper", diag, &jb, &a[j + j * a_dim1], lda, info, (
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ftnlen)5, (ftnlen)1);
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/* L20: */
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}
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} else {
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}
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} else {
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/* Compute inverse of lower triangular matrix */
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nn = (*n - 1) / nb * nb + 1;
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i__3 = -nb;
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for (j = nn; i__3 < 0 ? j >= 1 : j <= 1; j += i__3) {
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nn = (*n - 1) / nb * nb + 1;
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i__3 = -nb;
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for (j = nn; i__3 < 0 ? j >= 1 : j <= 1; j += i__3) {
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/* Computing MIN */
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i__1 = nb, i__4 = *n - j + 1;
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jb = min(i__1,i__4);
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if (j + jb <= *n) {
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i__1 = nb, i__4 = *n - j + 1;
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jb = min(i__1,i__4);
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if (j + jb <= *n) {
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/* Compute rows j+jb:n of current block column */
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i__1 = *n - j - jb + 1;
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dtrmm_((char *)"Left", (char *)"Lower", (char *)"No transpose", diag, &i__1, &jb,
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&c_b18, &a[j + jb + (j + jb) * a_dim1], lda, &a[j
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+ jb + j * a_dim1], lda, (ftnlen)4, (ftnlen)5, (
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ftnlen)12, (ftnlen)1);
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i__1 = *n - j - jb + 1;
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dtrsm_((char *)"Right", (char *)"Lower", (char *)"No transpose", diag, &i__1, &jb,
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&c_b22, &a[j + j * a_dim1], lda, &a[j + jb + j *
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a_dim1], lda, (ftnlen)5, (ftnlen)5, (ftnlen)12, (
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ftnlen)1);
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}
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i__1 = *n - j - jb + 1;
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dtrmm_((char *)"Left", (char *)"Lower", (char *)"No transpose", diag, &i__1, &jb,
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&c_b18, &a[j + jb + (j + jb) * a_dim1], lda, &a[j
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+ jb + j * a_dim1], lda, (ftnlen)4, (ftnlen)5, (
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ftnlen)12, (ftnlen)1);
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i__1 = *n - j - jb + 1;
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dtrsm_((char *)"Right", (char *)"Lower", (char *)"No transpose", diag, &i__1, &jb,
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&c_b22, &a[j + j * a_dim1], lda, &a[j + jb + j *
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a_dim1], lda, (ftnlen)5, (ftnlen)5, (ftnlen)12, (
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ftnlen)1);
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}
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/* Compute inverse of current diagonal block */
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dtrti2_((char *)"Lower", diag, &jb, &a[j + j * a_dim1], lda, info, (
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ftnlen)5, (ftnlen)1);
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dtrti2_((char *)"Lower", diag, &jb, &a[j + j * a_dim1], lda, info, (
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ftnlen)5, (ftnlen)1);
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/* L30: */
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}
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}
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}
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}
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}
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return 0;
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@ -317,5 +317,5 @@ f"> */
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} /* dtrtri_ */
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#ifdef __cplusplus
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}
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}
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#endif
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