49 lines
1.3 KiB
C++
49 lines
1.3 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 dlaset_(char *uplo, integer *m, integer *n, doublereal *alpha, doublereal *beta, doublereal *a,
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integer *lda, ftnlen uplo_len)
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{
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integer a_dim1, a_offset, i__1, i__2, i__3;
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integer i__, j;
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extern logical lsame_(char *, char *, ftnlen, 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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if (lsame_(uplo, (char *)"U", (ftnlen)1, (ftnlen)1)) {
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i__1 = *n;
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for (j = 2; j <= i__1; ++j) {
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i__3 = j - 1;
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i__2 = min(i__3, *m);
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for (i__ = 1; i__ <= i__2; ++i__) {
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a[i__ + j * a_dim1] = *alpha;
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}
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}
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} else if (lsame_(uplo, (char *)"L", (ftnlen)1, (ftnlen)1)) {
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i__1 = min(*m, *n);
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for (j = 1; j <= i__1; ++j) {
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i__2 = *m;
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for (i__ = j + 1; i__ <= i__2; ++i__) {
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a[i__ + j * a_dim1] = *alpha;
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}
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}
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} else {
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i__1 = *n;
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for (j = 1; j <= i__1; ++j) {
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i__2 = *m;
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for (i__ = 1; i__ <= i__2; ++i__) {
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a[i__ + j * a_dim1] = *alpha;
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}
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}
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}
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i__1 = min(*m, *n);
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for (i__ = 1; i__ <= i__1; ++i__) {
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a[i__ + i__ * a_dim1] = *beta;
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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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