1 /*
2 *
3 * cblas_zher2k.c
4 * This program is a C interface to zher2k.
5 * Written by Keita Teranishi
6 * 4/8/1998
7 *
8 */
9
10 #include "cblas.h"
11 #include "cblas_f77.h"
cblas_zher2k(const enum CBLAS_ORDER Order,const enum CBLAS_UPLO Uplo,const enum CBLAS_TRANSPOSE Trans,const int N,const int K,const void * alpha,const void * A,const int lda,const void * B,const int ldb,const double beta,void * C,const int ldc)12 void cblas_zher2k(const enum CBLAS_ORDER Order, const enum CBLAS_UPLO Uplo,
13 const enum CBLAS_TRANSPOSE Trans, const int N, const int K,
14 const void *alpha, const void *A, const int lda,
15 const void *B, const int ldb, const double beta,
16 void *C, const int ldc)
17 {
18 char UL, TR;
19 #ifdef F77_CHAR
20 F77_CHAR F77_TR, F77_UL;
21 #else
22 #define F77_TR &TR
23 #define F77_UL &UL
24 #endif
25
26 #ifdef F77_INT
27 F77_INT F77_N=N, F77_K=K, F77_lda=lda, F77_ldb=ldb;
28 F77_INT F77_ldc=ldc;
29 #else
30 #define F77_N N
31 #define F77_K K
32 #define F77_lda lda
33 #define F77_ldb ldb
34 #define F77_ldc ldc
35 #endif
36
37 extern int CBLAS_CallFromC;
38 extern int RowMajorStrg;
39 double ALPHA[2];
40 const double *alp=(double *)alpha;
41
42 CBLAS_CallFromC = 1;
43 RowMajorStrg = 0;
44
45 if( Order == CblasColMajor )
46 {
47
48 if( Uplo == CblasUpper) UL='U';
49 else if ( Uplo == CblasLower ) UL='L';
50 else
51 {
52 cblas_xerbla(2, "cblas_zher2k", "Illegal Uplo setting, %d\n", Uplo);
53 CBLAS_CallFromC = 0;
54 RowMajorStrg = 0;
55 return;
56 }
57
58 if( Trans == CblasTrans) TR ='T';
59 else if ( Trans == CblasConjTrans ) TR='C';
60 else if ( Trans == CblasNoTrans ) TR='N';
61 else
62 {
63 cblas_xerbla(3, "cblas_zher2k", "Illegal Trans setting, %d\n", Trans);
64 CBLAS_CallFromC = 0;
65 RowMajorStrg = 0;
66 return;
67 }
68
69 #ifdef F77_CHAR
70 F77_UL = C2F_CHAR(&UL);
71 F77_TR = C2F_CHAR(&TR);
72 #endif
73
74 F77_zher2k(F77_UL, F77_TR, &F77_N, &F77_K, alpha, A, &F77_lda, B, &F77_ldb, &beta, C, &F77_ldc);
75 } else if (Order == CblasRowMajor)
76 {
77 RowMajorStrg = 1;
78
79 if( Uplo == CblasUpper) UL='L';
80 else if ( Uplo == CblasLower ) UL='U';
81 else
82 {
83 cblas_xerbla(2, "cblas_zher2k", "Illegal Uplo setting, %d\n", Uplo);
84 CBLAS_CallFromC = 0;
85 RowMajorStrg = 0;
86 return;
87 }
88 if( Trans == CblasTrans) TR ='N';
89 else if ( Trans == CblasConjTrans ) TR='N';
90 else if ( Trans == CblasNoTrans ) TR='C';
91 else
92 {
93 cblas_xerbla(3, "cblas_zher2k", "Illegal Trans setting, %d\n", Trans);
94 CBLAS_CallFromC = 0;
95 RowMajorStrg = 0;
96 return;
97 }
98 #ifdef F77_CHAR
99 F77_UL = C2F_CHAR(&UL);
100 F77_TR = C2F_CHAR(&TR);
101 #endif
102
103 ALPHA[0]= *alp;
104 ALPHA[1]= -alp[1];
105 F77_zher2k(F77_UL,F77_TR, &F77_N, &F77_K, ALPHA, A, &F77_lda, B, &F77_ldb, &beta, C, &F77_ldc);
106 } else cblas_xerbla(1, "cblas_zher2k", "Illegal Order setting, %d\n", Order);
107 CBLAS_CallFromC = 0;
108 RowMajorStrg = 0;
109 return;
110 }
111