1 /*
2 *
3 * cblas_sgemv.c
4 * This program is a C interface to sgemv.
5 * Written by Keita Teranishi
6 * 4/6/1998
7 *
8 */
9 #include "cblas.h"
10 #include "cblas_f77.h"
cblas_sgemv(const enum CBLAS_ORDER order,const enum CBLAS_TRANSPOSE TransA,const int M,const int N,const float alpha,const float * A,const int lda,const float * X,const int incX,const float beta,float * Y,const int incY)11 void cblas_sgemv(const enum CBLAS_ORDER order,
12 const enum CBLAS_TRANSPOSE TransA, const int M, const int N,
13 const float alpha, const float *A, const int lda,
14 const float *X, const int incX, const float beta,
15 float *Y, const int incY)
16 {
17 char TA;
18 #ifdef F77_CHAR
19 F77_CHAR F77_TA;
20 #else
21 #define F77_TA &TA
22 #endif
23 #ifdef F77_INT
24 F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_incX=incX, F77_incY=incY;
25 #else
26 #define F77_M M
27 #define F77_N N
28 #define F77_lda lda
29 #define F77_incX incX
30 #define F77_incY incY
31 #endif
32
33 extern int CBLAS_CallFromC;
34 extern int RowMajorStrg;
35 RowMajorStrg = 0;
36
37 CBLAS_CallFromC = 1;
38 if (order == CblasColMajor)
39 {
40 if (TransA == CblasNoTrans) TA = 'N';
41 else if (TransA == CblasTrans) TA = 'T';
42 else if (TransA == CblasConjTrans) TA = 'C';
43 else
44 {
45 cblas_xerbla(2, "cblas_sgemv","Illegal TransA setting, %d\n", TransA);
46 CBLAS_CallFromC = 0;
47 RowMajorStrg = 0;
48 }
49 #ifdef F77_CHAR
50 F77_TA = C2F_CHAR(&TA);
51 #endif
52 F77_sgemv(F77_TA, &F77_M, &F77_N, &alpha, A, &F77_lda, X, &F77_incX,
53 &beta, Y, &F77_incY);
54 }
55 else if (order == CblasRowMajor)
56 {
57 RowMajorStrg = 1;
58 if (TransA == CblasNoTrans) TA = 'T';
59 else if (TransA == CblasTrans) TA = 'N';
60 else if (TransA == CblasConjTrans) TA = 'N';
61 else
62 {
63 cblas_xerbla(2, "cblas_sgemv", "Illegal TransA setting, %d\n", TransA);
64 CBLAS_CallFromC = 0;
65 RowMajorStrg = 0;
66 return;
67 }
68 #ifdef F77_CHAR
69 F77_TA = C2F_CHAR(&TA);
70 #endif
71 F77_sgemv(F77_TA, &F77_N, &F77_M, &alpha, A, &F77_lda, X,
72 &F77_incX, &beta, Y, &F77_incY);
73 }
74 else cblas_xerbla(1, "cblas_sgemv", "Illegal Order setting, %d\n", order);
75 CBLAS_CallFromC = 0;
76 RowMajorStrg = 0;
77 return;
78 }
79