1 /*
2 *
3 * cblas_cgemm.c
4 * This program is a C interface to cgemm.
5 * Written by Keita Teranishi
6 * 4/8/1998
7 *
8 */
9
10 #include "cblas.h"
11 #include "cblas_f77.h"
cblas_cgemm(const enum CBLAS_ORDER Order,const enum CBLAS_TRANSPOSE TransA,const enum CBLAS_TRANSPOSE TransB,const int M,const int N,const int K,const void * alpha,const void * A,const int lda,const void * B,const int ldb,const void * beta,void * C,const int ldc)12 void cblas_cgemm(const enum CBLAS_ORDER Order, const enum CBLAS_TRANSPOSE TransA,
13 const enum CBLAS_TRANSPOSE TransB, const int M, const int N,
14 const int K, const void *alpha, const void *A,
15 const int lda, const void *B, const int ldb,
16 const void *beta, void *C, const int ldc)
17 {
18 char TA, TB;
19 #ifdef F77_CHAR
20 F77_CHAR F77_TA, F77_TB;
21 #else
22 #define F77_TA &TA
23 #define F77_TB &TB
24 #endif
25
26 #ifdef F77_INT
27 F77_INT F77_M=M, F77_N=N, F77_K=K, F77_lda=lda, F77_ldb=ldb;
28 F77_INT F77_ldc=ldc;
29 #else
30 #define F77_M M
31 #define F77_N N
32 #define F77_K K
33 #define F77_lda lda
34 #define F77_ldb ldb
35 #define F77_ldc ldc
36 #endif
37
38 extern int CBLAS_CallFromC;
39 extern int RowMajorStrg;
40 RowMajorStrg = 0;
41 CBLAS_CallFromC = 1;
42
43 if( Order == CblasColMajor )
44 {
45 if(TransA == CblasTrans) TA='T';
46 else if ( TransA == CblasConjTrans ) TA='C';
47 else if ( TransA == CblasNoTrans ) TA='N';
48 else
49 {
50 cblas_xerbla(2, "cblas_cgemm", "Illegal TransA setting, %d\n", TransA);
51 CBLAS_CallFromC = 0;
52 RowMajorStrg = 0;
53 return;
54 }
55
56 if(TransB == CblasTrans) TB='T';
57 else if ( TransB == CblasConjTrans ) TB='C';
58 else if ( TransB == CblasNoTrans ) TB='N';
59 else
60 {
61 cblas_xerbla(3, "cblas_cgemm", "Illegal TransB setting, %d\n", TransB);
62 CBLAS_CallFromC = 0;
63 RowMajorStrg = 0;
64 return;
65 }
66
67 #ifdef F77_CHAR
68 F77_TA = C2F_CHAR(&TA);
69 F77_TB = C2F_CHAR(&TB);
70 #endif
71
72 F77_cgemm(F77_TA, F77_TB, &F77_M, &F77_N, &F77_K, alpha, A,
73 &F77_lda, B, &F77_ldb, beta, C, &F77_ldc);
74 } else if (Order == CblasRowMajor)
75 {
76 RowMajorStrg = 1;
77 if(TransA == CblasTrans) TB='T';
78 else if ( TransA == CblasConjTrans ) TB='C';
79 else if ( TransA == CblasNoTrans ) TB='N';
80 else
81 {
82 cblas_xerbla(2, "cblas_cgemm", "Illegal TransA setting, %d\n", TransA);
83 CBLAS_CallFromC = 0;
84 RowMajorStrg = 0;
85 return;
86 }
87 if(TransB == CblasTrans) TA='T';
88 else if ( TransB == CblasConjTrans ) TA='C';
89 else if ( TransB == CblasNoTrans ) TA='N';
90 else
91 {
92 cblas_xerbla(2, "cblas_cgemm", "Illegal TransB setting, %d\n", TransB);
93 CBLAS_CallFromC = 0;
94 RowMajorStrg = 0;
95 return;
96 }
97 #ifdef F77_CHAR
98 F77_TA = C2F_CHAR(&TA);
99 F77_TB = C2F_CHAR(&TB);
100 #endif
101
102 F77_cgemm(F77_TA, F77_TB, &F77_N, &F77_M, &F77_K, alpha, B,
103 &F77_ldb, A, &F77_lda, beta, C, &F77_ldc);
104 }
105 else cblas_xerbla(1, "cblas_cgemm", "Illegal Order setting, %d\n", Order);
106 CBLAS_CallFromC = 0;
107 RowMajorStrg = 0;
108 return;
109 }
110