1 /*
2 *
3 * cblas_csyr2k.c
4 * This program is a C interface to csyr2k.
5 * Written by Keita Teranishi
6 * 4/8/1998
7 *
8 */
9
10 #include "cblas.h"
11 #include "cblas_f77.h"
cblas_csyr2k(const CBLAS_LAYOUT layout,const CBLAS_UPLO Uplo,const CBLAS_TRANSPOSE Trans,const CBLAS_INDEX N,const CBLAS_INDEX K,const void * alpha,const void * A,const CBLAS_INDEX lda,const void * B,const CBLAS_INDEX ldb,const void * beta,void * C,const CBLAS_INDEX ldc)12 void cblas_csyr2k(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo,
13 const CBLAS_TRANSPOSE Trans, const CBLAS_INDEX N, const CBLAS_INDEX K,
14 const void *alpha, const void *A, const CBLAS_INDEX lda,
15 const void *B, const CBLAS_INDEX ldb, const void *beta,
16 void *C, const CBLAS_INDEX 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 RowMajorStrg = 0;
40 CBLAS_CallFromC = 1;
41
42 if( layout == CblasColMajor )
43 {
44
45 if( Uplo == CblasUpper) UL='U';
46 else if ( Uplo == CblasLower ) UL='L';
47 else
48 {
49 cblas_xerbla(2, "cblas_csyr2k", "Illegal Uplo setting, %d\n", Uplo);
50 CBLAS_CallFromC = 0;
51 RowMajorStrg = 0;
52 return;
53 }
54
55 if( Trans == CblasTrans) TR ='T';
56 else if ( Trans == CblasConjTrans ) TR='C';
57 else if ( Trans == CblasNoTrans ) TR='N';
58 else
59 {
60 cblas_xerbla(3, "cblas_csyr2k", "Illegal Trans setting, %d\n", Trans);
61 CBLAS_CallFromC = 0;
62 RowMajorStrg = 0;
63 return;
64 }
65
66
67 #ifdef F77_CHAR
68 F77_UL = C2F_CHAR(&UL);
69 F77_TR = C2F_CHAR(&TR);
70 #endif
71
72 F77_csyr2k(F77_UL, F77_TR, &F77_N, &F77_K, alpha, A, &F77_lda,
73 B, &F77_ldb, beta, C, &F77_ldc);
74 } else if (layout == CblasRowMajor)
75 {
76 RowMajorStrg = 1;
77 if( Uplo == CblasUpper) UL='L';
78 else if ( Uplo == CblasLower ) UL='U';
79 else
80 {
81 cblas_xerbla(3, "cblas_csyr2k", "Illegal Uplo setting, %d\n", Uplo);
82 CBLAS_CallFromC = 0;
83 RowMajorStrg = 0;
84 return;
85 }
86 if( Trans == CblasTrans) TR ='N';
87 else if ( Trans == CblasConjTrans ) TR='N';
88 else if ( Trans == CblasNoTrans ) TR='T';
89 else
90 {
91 cblas_xerbla(3, "cblas_csyr2k", "Illegal Trans setting, %d\n", Trans);
92 CBLAS_CallFromC = 0;
93 RowMajorStrg = 0;
94 return;
95 }
96
97 #ifdef F77_CHAR
98 F77_UL = C2F_CHAR(&UL);
99 F77_TR = C2F_CHAR(&TR);
100 #endif
101
102 F77_csyr2k(F77_UL, F77_TR, &F77_N, &F77_K, alpha, A, &F77_lda, B, &F77_ldb, beta, C, &F77_ldc);
103 }
104 else cblas_xerbla(1, "cblas_csyr2k", "Illegal layout setting, %d\n", layout);
105 CBLAS_CallFromC = 0;
106 RowMajorStrg = 0;
107 return;
108 }
109