46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
#ifdef __cplusplus
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extern "C" {
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#endif
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#include "lmp_f2c.h"
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int dposv_(char *uplo, integer *n, integer *nrhs, doublereal *a, integer *lda, doublereal *b,
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integer *ldb, integer *info, ftnlen uplo_len)
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{
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integer a_dim1, a_offset, b_dim1, b_offset, i__1;
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extern logical lsame_(char *, char *, ftnlen, ftnlen);
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extern int xerbla_(char *, integer *, ftnlen),
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dpotrf_(char *, integer *, doublereal *, integer *, integer *, ftnlen),
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dpotrs_(char *, integer *, integer *, doublereal *, integer *, doublereal *, integer *,
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integer *, ftnlen);
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a_dim1 = *lda;
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a_offset = 1 + a_dim1;
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a -= a_offset;
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b_dim1 = *ldb;
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b_offset = 1 + b_dim1;
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b -= b_offset;
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*info = 0;
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if (!lsame_(uplo, (char *)"U", (ftnlen)1, (ftnlen)1) && !lsame_(uplo, (char *)"L", (ftnlen)1, (ftnlen)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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} else if (*nrhs < 0) {
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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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} else if (*ldb < max(1, *n)) {
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*info = -7;
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}
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if (*info != 0) {
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i__1 = -(*info);
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xerbla_((char *)"DPOSV ", &i__1, (ftnlen)6);
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return 0;
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}
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dpotrf_(uplo, n, &a[a_offset], lda, info, (ftnlen)1);
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if (*info == 0) {
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dpotrs_(uplo, n, nrhs, &a[a_offset], lda, &b[b_offset], ldb, info, (ftnlen)1);
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}
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return 0;
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}
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#ifdef __cplusplus
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}
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#endif
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