whitespace fixes
This commit is contained in:
Axel Kohlmeyer
@ -1,13 +1,13 @@
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/* static/dgetrf2.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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@ -133,7 +133,7 @@ static doublereal c_b16 = -1.;
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/* ===================================================================== */
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/* Subroutine */ int dgetrf2_(integer *m, integer *n, doublereal *a, integer *
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lda, integer *ipiv, integer *info)
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lda, integer *ipiv, integer *info)
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{
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/* System generated locals */
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integer a_dim1, a_offset, i__1, i__2;
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@ -142,20 +142,20 @@ static doublereal c_b16 = -1.;
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/* Local variables */
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integer i__, n1, n2;
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doublereal temp;
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extern /* Subroutine */ int dscal_(integer *, doublereal *, doublereal *,
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integer *), dgemm_(char *, char *, integer *, integer *, integer *
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, doublereal *, doublereal *, integer *, doublereal *, integer *,
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doublereal *, doublereal *, integer *, ftnlen, ftnlen);
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extern /* Subroutine */ int dscal_(integer *, doublereal *, doublereal *,
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integer *), dgemm_(char *, char *, integer *, integer *, integer *
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, doublereal *, doublereal *, integer *, doublereal *, integer *,
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doublereal *, doublereal *, integer *, ftnlen, ftnlen);
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integer iinfo;
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doublereal sfmin;
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extern /* Subroutine */ int dtrsm_(char *, char *, char *, char *,
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integer *, integer *, doublereal *, doublereal *, integer *,
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doublereal *, integer *, ftnlen, ftnlen, ftnlen, ftnlen);
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extern /* Subroutine */ int dtrsm_(char *, char *, char *, char *,
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integer *, integer *, doublereal *, doublereal *, integer *,
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doublereal *, integer *, ftnlen, ftnlen, ftnlen, ftnlen);
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extern doublereal dlamch_(char *, ftnlen);
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extern integer idamax_(integer *, doublereal *, integer *);
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extern /* Subroutine */ int xerbla_(char *, integer *, ftnlen), dlaswp_(
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integer *, doublereal *, integer *, integer *, integer *, integer
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*, integer *);
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integer *, doublereal *, integer *, integer *, integer *, integer
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*, integer *);
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/* -- LAPACK computational routine -- */
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@ -192,32 +192,32 @@ static doublereal c_b16 = -1.;
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/* Function Body */
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*info = 0;
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if (*m < 0) {
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*info = -1;
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*info = -1;
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} else if (*n < 0) {
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*info = -2;
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*info = -2;
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} else if (*lda < max(1,*m)) {
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*info = -4;
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*info = -4;
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}
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if (*info != 0) {
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i__1 = -(*info);
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xerbla_((char *)"DGETRF2", &i__1, (ftnlen)7);
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return 0;
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i__1 = -(*info);
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xerbla_((char *)"DGETRF2", &i__1, (ftnlen)7);
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return 0;
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}
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/* Quick return if possible */
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if (*m == 0 || *n == 0) {
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return 0;
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return 0;
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}
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if (*m == 1) {
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/* Use unblocked code for one row case */
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/* Just need to handle IPIV and INFO */
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ipiv[1] = 1;
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if (a[a_dim1 + 1] == 0.) {
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*info = 1;
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}
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ipiv[1] = 1;
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if (a[a_dim1 + 1] == 0.) {
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*info = 1;
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}
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} else if (*n == 1) {
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@ -226,98 +226,98 @@ static doublereal c_b16 = -1.;
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/* Compute machine safe minimum */
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sfmin = dlamch_((char *)"S", (ftnlen)1);
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sfmin = dlamch_((char *)"S", (ftnlen)1);
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/* Find pivot and test for singularity */
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i__ = idamax_(m, &a[a_dim1 + 1], &c__1);
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ipiv[1] = i__;
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if (a[i__ + a_dim1] != 0.) {
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i__ = idamax_(m, &a[a_dim1 + 1], &c__1);
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ipiv[1] = i__;
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if (a[i__ + a_dim1] != 0.) {
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/* Apply the interchange */
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if (i__ != 1) {
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temp = a[a_dim1 + 1];
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a[a_dim1 + 1] = a[i__ + a_dim1];
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a[i__ + a_dim1] = temp;
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}
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if (i__ != 1) {
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temp = a[a_dim1 + 1];
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a[a_dim1 + 1] = a[i__ + a_dim1];
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a[i__ + a_dim1] = temp;
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}
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/* Compute elements 2:M of the column */
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if ((d__1 = a[a_dim1 + 1], abs(d__1)) >= sfmin) {
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i__1 = *m - 1;
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d__1 = 1. / a[a_dim1 + 1];
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dscal_(&i__1, &d__1, &a[a_dim1 + 2], &c__1);
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} else {
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i__1 = *m - 1;
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for (i__ = 1; i__ <= i__1; ++i__) {
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a[i__ + 1 + a_dim1] /= a[a_dim1 + 1];
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if ((d__1 = a[a_dim1 + 1], abs(d__1)) >= sfmin) {
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i__1 = *m - 1;
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d__1 = 1. / a[a_dim1 + 1];
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dscal_(&i__1, &d__1, &a[a_dim1 + 2], &c__1);
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} else {
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i__1 = *m - 1;
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for (i__ = 1; i__ <= i__1; ++i__) {
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a[i__ + 1 + a_dim1] /= a[a_dim1 + 1];
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/* L10: */
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}
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}
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}
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}
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} else {
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*info = 1;
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}
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} else {
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*info = 1;
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}
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} else {
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/* Use recursive code */
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n1 = min(*m,*n) / 2;
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n2 = *n - n1;
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n1 = min(*m,*n) / 2;
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n2 = *n - n1;
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/* [ A11 ] */
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/* Factor [ --- ] */
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/* [ A21 ] */
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dgetrf2_(m, &n1, &a[a_offset], lda, &ipiv[1], &iinfo);
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if (*info == 0 && iinfo > 0) {
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*info = iinfo;
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}
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dgetrf2_(m, &n1, &a[a_offset], lda, &ipiv[1], &iinfo);
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if (*info == 0 && iinfo > 0) {
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*info = iinfo;
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}
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/* [ A12 ] */
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/* Apply interchanges to [ --- ] */
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/* [ A22 ] */
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dlaswp_(&n2, &a[(n1 + 1) * a_dim1 + 1], lda, &c__1, &n1, &ipiv[1], &
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c__1);
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dlaswp_(&n2, &a[(n1 + 1) * a_dim1 + 1], lda, &c__1, &n1, &ipiv[1], &
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c__1);
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/* Solve A12 */
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dtrsm_((char *)"L", (char *)"L", (char *)"N", (char *)"U", &n1, &n2, &c_b13, &a[a_offset], lda, &a[(
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n1 + 1) * a_dim1 + 1], lda, (ftnlen)1, (ftnlen)1, (ftnlen)1, (
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ftnlen)1);
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dtrsm_((char *)"L", (char *)"L", (char *)"N", (char *)"U", &n1, &n2, &c_b13, &a[a_offset], lda, &a[(
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n1 + 1) * a_dim1 + 1], lda, (ftnlen)1, (ftnlen)1, (ftnlen)1, (
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ftnlen)1);
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/* Update A22 */
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i__1 = *m - n1;
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dgemm_((char *)"N", (char *)"N", &i__1, &n2, &n1, &c_b16, &a[n1 + 1 + a_dim1], lda, &
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a[(n1 + 1) * a_dim1 + 1], lda, &c_b13, &a[n1 + 1 + (n1 + 1) *
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a_dim1], lda, (ftnlen)1, (ftnlen)1);
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i__1 = *m - n1;
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dgemm_((char *)"N", (char *)"N", &i__1, &n2, &n1, &c_b16, &a[n1 + 1 + a_dim1], lda, &
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a[(n1 + 1) * a_dim1 + 1], lda, &c_b13, &a[n1 + 1 + (n1 + 1) *
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a_dim1], lda, (ftnlen)1, (ftnlen)1);
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/* Factor A22 */
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i__1 = *m - n1;
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dgetrf2_(&i__1, &n2, &a[n1 + 1 + (n1 + 1) * a_dim1], lda, &ipiv[n1 +
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1], &iinfo);
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i__1 = *m - n1;
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dgetrf2_(&i__1, &n2, &a[n1 + 1 + (n1 + 1) * a_dim1], lda, &ipiv[n1 +
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1], &iinfo);
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/* Adjust INFO and the pivot indices */
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if (*info == 0 && iinfo > 0) {
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*info = iinfo + n1;
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}
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i__1 = min(*m,*n);
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for (i__ = n1 + 1; i__ <= i__1; ++i__) {
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ipiv[i__] += n1;
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if (*info == 0 && iinfo > 0) {
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*info = iinfo + n1;
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}
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i__1 = min(*m,*n);
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for (i__ = n1 + 1; i__ <= i__1; ++i__) {
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ipiv[i__] += n1;
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/* L20: */
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}
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}
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/* Apply interchanges to A21 */
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i__1 = n1 + 1;
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i__2 = min(*m,*n);
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dlaswp_(&n1, &a[a_dim1 + 1], lda, &i__1, &i__2, &ipiv[1], &c__1);
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i__1 = n1 + 1;
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i__2 = min(*m,*n);
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dlaswp_(&n1, &a[a_dim1 + 1], lda, &i__1, &i__2, &ipiv[1], &c__1);
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}
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return 0;
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@ -327,5 +327,5 @@ static doublereal c_b16 = -1.;
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} /* dgetrf2_ */
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#ifdef __cplusplus
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}
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}
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#endif
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