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38 #include "gmx_lapack.h"
41 F77_FUNC(dlansy,DLANSY)(const char *norm, const char *uplo, int *n, double *a, int
44 /* System generated locals */
45 int a_dim1, a_offset, i__1, i__2;
46 double ret_val, d__1, d__2, d__3;
51 double sum, absa, scale;
55 a_offset = 1 + a_dim1;
61 } else if (*norm=='M' || *norm=='m') {
64 if (*uplo=='U' || *uplo=='u') {
66 for (j = 1; j <= i__1; ++j) {
68 for (i__ = 1; i__ <= i__2; ++i__) {
70 d__3 = fabs(a[i__ + j * a_dim1]);
71 value = (d__2>d__3) ? d__2 : d__3;
76 for (j = 1; j <= i__1; ++j) {
78 for (i__ = j; i__ <= i__2; ++i__) {
80 d__3 = fabs(a[i__ + j * a_dim1]);
81 value = (d__2>d__3) ? d__2 : d__3;
85 } else if (*norm=='I' || *norm=='i' || *norm=='O' || *norm=='o' || *norm=='1') {
88 if (*uplo=='U' || *uplo=='u') {
90 for (j = 1; j <= i__1; ++j) {
93 for (i__ = 1; i__ <= i__2; ++i__) {
94 absa = fabs(a[i__ + j * a_dim1]);
98 work[j] = sum + fabs(a[j + j * a_dim1]);
101 for (i__ = 1; i__ <= i__1; ++i__) {
102 d__1 = value, d__2 = work[i__];
103 value = (d__1>d__2) ? d__1 : d__2;
107 for (i__ = 1; i__ <= i__1; ++i__) {
111 for (j = 1; j <= i__1; ++j) {
112 sum = work[j] + fabs(a[j + j * a_dim1]);
114 for (i__ = j + 1; i__ <= i__2; ++i__) {
115 absa = fabs(a[i__ + j * a_dim1]);
123 } else if (*norm=='F' || *norm=='f' || *norm=='E' || *norm=='e') {
127 if (*uplo=='U' || *uplo=='u') {
129 for (j = 2; j <= i__1; ++j) {
131 F77_FUNC(dlassq,DLASSQ)(&i__2, &a[j * a_dim1 + 1], &c__1, &scale, &sum);
135 for (j = 1; j <= i__1; ++j) {
137 F77_FUNC(dlassq,DLASSQ)(&i__2, &a[j + 1 + j * a_dim1], &c__1, &scale, &sum);
142 F77_FUNC(dlassq,DLASSQ)(n, &a[a_offset], &i__1, &scale, &sum);
143 value = scale * sqrt(sum);