272 lines
12 KiB
C++
272 lines
12 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 zhemm_(char *side, char *uplo, integer *m, integer *n, doublecomplex *alpha, doublecomplex *a,
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integer *lda, doublecomplex *b, integer *ldb, doublecomplex *beta, doublecomplex *c__,
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integer *ldc, ftnlen side_len, ftnlen uplo_len)
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{
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integer a_dim1, a_offset, b_dim1, b_offset, c_dim1, c_offset, i__1, i__2, i__3, i__4, i__5,
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i__6;
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doublereal d__1;
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doublecomplex z__1, z__2, z__3, z__4, z__5;
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void d_lmp_cnjg(doublecomplex *, doublecomplex *);
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integer i__, j, k, info;
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doublecomplex temp1, temp2;
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extern logical lsame_(char *, char *, ftnlen, ftnlen);
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integer nrowa;
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logical upper;
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extern int xerbla_(char *, 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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c_dim1 = *ldc;
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c_offset = 1 + c_dim1;
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c__ -= c_offset;
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if (lsame_(side, (char *)"L", (ftnlen)1, (ftnlen)1)) {
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nrowa = *m;
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} else {
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nrowa = *n;
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}
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upper = lsame_(uplo, (char *)"U", (ftnlen)1, (ftnlen)1);
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info = 0;
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if (!lsame_(side, (char *)"L", (ftnlen)1, (ftnlen)1) && !lsame_(side, (char *)"R", (ftnlen)1, (ftnlen)1)) {
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info = 1;
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} else if (!upper && !lsame_(uplo, (char *)"L", (ftnlen)1, (ftnlen)1)) {
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info = 2;
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} else if (*m < 0) {
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info = 3;
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} else if (*n < 0) {
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info = 4;
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} else if (*lda < max(1, nrowa)) {
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info = 7;
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} else if (*ldb < max(1, *m)) {
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info = 9;
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} else if (*ldc < max(1, *m)) {
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info = 12;
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}
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if (info != 0) {
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xerbla_((char *)"ZHEMM ", &info, (ftnlen)6);
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return 0;
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}
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if (*m == 0 || *n == 0 ||
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alpha->r == 0. && alpha->i == 0. && (beta->r == 1. && beta->i == 0.)) {
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return 0;
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}
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if (alpha->r == 0. && alpha->i == 0.) {
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if (beta->r == 0. && beta->i == 0.) {
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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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i__3 = i__ + j * c_dim1;
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c__[i__3].r = 0., c__[i__3].i = 0.;
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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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i__3 = i__ + j * c_dim1;
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i__4 = i__ + j * c_dim1;
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z__1.r = beta->r * c__[i__4].r - beta->i * c__[i__4].i,
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z__1.i = beta->r * c__[i__4].i + beta->i * c__[i__4].r;
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c__[i__3].r = z__1.r, c__[i__3].i = z__1.i;
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}
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}
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}
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return 0;
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}
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if (lsame_(side, (char *)"L", (ftnlen)1, (ftnlen)1)) {
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if (upper) {
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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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i__3 = i__ + j * b_dim1;
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z__1.r = alpha->r * b[i__3].r - alpha->i * b[i__3].i,
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z__1.i = alpha->r * b[i__3].i + alpha->i * b[i__3].r;
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temp1.r = z__1.r, temp1.i = z__1.i;
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temp2.r = 0., temp2.i = 0.;
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i__3 = i__ - 1;
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for (k = 1; k <= i__3; ++k) {
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i__4 = k + j * c_dim1;
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i__5 = k + j * c_dim1;
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i__6 = k + i__ * a_dim1;
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z__2.r = temp1.r * a[i__6].r - temp1.i * a[i__6].i,
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z__2.i = temp1.r * a[i__6].i + temp1.i * a[i__6].r;
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z__1.r = c__[i__5].r + z__2.r, z__1.i = c__[i__5].i + z__2.i;
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c__[i__4].r = z__1.r, c__[i__4].i = z__1.i;
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i__4 = k + j * b_dim1;
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d_lmp_cnjg(&z__3, &a[k + i__ * a_dim1]);
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z__2.r = b[i__4].r * z__3.r - b[i__4].i * z__3.i,
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z__2.i = b[i__4].r * z__3.i + b[i__4].i * z__3.r;
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z__1.r = temp2.r + z__2.r, z__1.i = temp2.i + z__2.i;
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temp2.r = z__1.r, temp2.i = z__1.i;
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}
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if (beta->r == 0. && beta->i == 0.) {
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i__3 = i__ + j * c_dim1;
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i__4 = i__ + i__ * a_dim1;
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d__1 = a[i__4].r;
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z__2.r = d__1 * temp1.r, z__2.i = d__1 * temp1.i;
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z__3.r = alpha->r * temp2.r - alpha->i * temp2.i,
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z__3.i = alpha->r * temp2.i + alpha->i * temp2.r;
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z__1.r = z__2.r + z__3.r, z__1.i = z__2.i + z__3.i;
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c__[i__3].r = z__1.r, c__[i__3].i = z__1.i;
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} else {
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i__3 = i__ + j * c_dim1;
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i__4 = i__ + j * c_dim1;
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z__3.r = beta->r * c__[i__4].r - beta->i * c__[i__4].i,
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z__3.i = beta->r * c__[i__4].i + beta->i * c__[i__4].r;
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i__5 = i__ + i__ * a_dim1;
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d__1 = a[i__5].r;
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z__4.r = d__1 * temp1.r, z__4.i = d__1 * temp1.i;
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z__2.r = z__3.r + z__4.r, z__2.i = z__3.i + z__4.i;
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z__5.r = alpha->r * temp2.r - alpha->i * temp2.i,
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z__5.i = alpha->r * temp2.i + alpha->i * temp2.r;
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z__1.r = z__2.r + z__5.r, z__1.i = z__2.i + z__5.i;
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c__[i__3].r = z__1.r, c__[i__3].i = z__1.i;
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}
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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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for (i__ = *m; i__ >= 1; --i__) {
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i__2 = i__ + j * b_dim1;
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z__1.r = alpha->r * b[i__2].r - alpha->i * b[i__2].i,
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z__1.i = alpha->r * b[i__2].i + alpha->i * b[i__2].r;
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temp1.r = z__1.r, temp1.i = z__1.i;
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temp2.r = 0., temp2.i = 0.;
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i__2 = *m;
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for (k = i__ + 1; k <= i__2; ++k) {
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i__3 = k + j * c_dim1;
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i__4 = k + j * c_dim1;
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i__5 = k + i__ * a_dim1;
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z__2.r = temp1.r * a[i__5].r - temp1.i * a[i__5].i,
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z__2.i = temp1.r * a[i__5].i + temp1.i * a[i__5].r;
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z__1.r = c__[i__4].r + z__2.r, z__1.i = c__[i__4].i + z__2.i;
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c__[i__3].r = z__1.r, c__[i__3].i = z__1.i;
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i__3 = k + j * b_dim1;
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d_lmp_cnjg(&z__3, &a[k + i__ * a_dim1]);
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z__2.r = b[i__3].r * z__3.r - b[i__3].i * z__3.i,
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z__2.i = b[i__3].r * z__3.i + b[i__3].i * z__3.r;
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z__1.r = temp2.r + z__2.r, z__1.i = temp2.i + z__2.i;
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temp2.r = z__1.r, temp2.i = z__1.i;
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}
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if (beta->r == 0. && beta->i == 0.) {
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i__2 = i__ + j * c_dim1;
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i__3 = i__ + i__ * a_dim1;
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d__1 = a[i__3].r;
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z__2.r = d__1 * temp1.r, z__2.i = d__1 * temp1.i;
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z__3.r = alpha->r * temp2.r - alpha->i * temp2.i,
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z__3.i = alpha->r * temp2.i + alpha->i * temp2.r;
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z__1.r = z__2.r + z__3.r, z__1.i = z__2.i + z__3.i;
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c__[i__2].r = z__1.r, c__[i__2].i = z__1.i;
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} else {
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i__2 = i__ + j * c_dim1;
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i__3 = i__ + j * c_dim1;
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z__3.r = beta->r * c__[i__3].r - beta->i * c__[i__3].i,
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z__3.i = beta->r * c__[i__3].i + beta->i * c__[i__3].r;
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i__4 = i__ + i__ * a_dim1;
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d__1 = a[i__4].r;
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z__4.r = d__1 * temp1.r, z__4.i = d__1 * temp1.i;
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z__2.r = z__3.r + z__4.r, z__2.i = z__3.i + z__4.i;
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z__5.r = alpha->r * temp2.r - alpha->i * temp2.i,
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z__5.i = alpha->r * temp2.i + alpha->i * temp2.r;
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z__1.r = z__2.r + z__5.r, z__1.i = z__2.i + z__5.i;
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c__[i__2].r = z__1.r, c__[i__2].i = z__1.i;
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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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i__1 = *n;
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for (j = 1; j <= i__1; ++j) {
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i__2 = j + j * a_dim1;
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d__1 = a[i__2].r;
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z__1.r = d__1 * alpha->r, z__1.i = d__1 * alpha->i;
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temp1.r = z__1.r, temp1.i = z__1.i;
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if (beta->r == 0. && beta->i == 0.) {
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i__2 = *m;
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for (i__ = 1; i__ <= i__2; ++i__) {
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i__3 = i__ + j * c_dim1;
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i__4 = i__ + j * b_dim1;
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z__1.r = temp1.r * b[i__4].r - temp1.i * b[i__4].i,
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z__1.i = temp1.r * b[i__4].i + temp1.i * b[i__4].r;
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c__[i__3].r = z__1.r, c__[i__3].i = z__1.i;
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}
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} else {
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i__2 = *m;
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for (i__ = 1; i__ <= i__2; ++i__) {
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i__3 = i__ + j * c_dim1;
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i__4 = i__ + j * c_dim1;
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z__2.r = beta->r * c__[i__4].r - beta->i * c__[i__4].i,
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z__2.i = beta->r * c__[i__4].i + beta->i * c__[i__4].r;
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i__5 = i__ + j * b_dim1;
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z__3.r = temp1.r * b[i__5].r - temp1.i * b[i__5].i,
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z__3.i = temp1.r * b[i__5].i + temp1.i * b[i__5].r;
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z__1.r = z__2.r + z__3.r, z__1.i = z__2.i + z__3.i;
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c__[i__3].r = z__1.r, c__[i__3].i = z__1.i;
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}
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}
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i__2 = j - 1;
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for (k = 1; k <= i__2; ++k) {
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if (upper) {
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i__3 = k + j * a_dim1;
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z__1.r = alpha->r * a[i__3].r - alpha->i * a[i__3].i,
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z__1.i = alpha->r * a[i__3].i + alpha->i * a[i__3].r;
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temp1.r = z__1.r, temp1.i = z__1.i;
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} else {
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d_lmp_cnjg(&z__2, &a[j + k * a_dim1]);
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z__1.r = alpha->r * z__2.r - alpha->i * z__2.i,
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z__1.i = alpha->r * z__2.i + alpha->i * z__2.r;
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temp1.r = z__1.r, temp1.i = z__1.i;
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}
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i__3 = *m;
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for (i__ = 1; i__ <= i__3; ++i__) {
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i__4 = i__ + j * c_dim1;
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i__5 = i__ + j * c_dim1;
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i__6 = i__ + k * b_dim1;
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z__2.r = temp1.r * b[i__6].r - temp1.i * b[i__6].i,
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z__2.i = temp1.r * b[i__6].i + temp1.i * b[i__6].r;
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z__1.r = c__[i__5].r + z__2.r, z__1.i = c__[i__5].i + z__2.i;
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c__[i__4].r = z__1.r, c__[i__4].i = z__1.i;
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}
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}
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i__2 = *n;
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for (k = j + 1; k <= i__2; ++k) {
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if (upper) {
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d_lmp_cnjg(&z__2, &a[j + k * a_dim1]);
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z__1.r = alpha->r * z__2.r - alpha->i * z__2.i,
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z__1.i = alpha->r * z__2.i + alpha->i * z__2.r;
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temp1.r = z__1.r, temp1.i = z__1.i;
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} else {
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i__3 = k + j * a_dim1;
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z__1.r = alpha->r * a[i__3].r - alpha->i * a[i__3].i,
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z__1.i = alpha->r * a[i__3].i + alpha->i * a[i__3].r;
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temp1.r = z__1.r, temp1.i = z__1.i;
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}
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i__3 = *m;
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for (i__ = 1; i__ <= i__3; ++i__) {
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i__4 = i__ + j * c_dim1;
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i__5 = i__ + j * c_dim1;
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i__6 = i__ + k * b_dim1;
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z__2.r = temp1.r * b[i__6].r - temp1.i * b[i__6].i,
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z__2.i = temp1.r * b[i__6].i + temp1.i * b[i__6].r;
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z__1.r = c__[i__5].r + z__2.r, z__1.i = c__[i__5].i + z__2.i;
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c__[i__4].r = z__1.r, c__[i__4].i = z__1.i;
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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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}
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#ifdef __cplusplus
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}
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#endif
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