1*1858f998SYi Kong /*
2*1858f998SYi Kong *
3*1858f998SYi Kong * cblas_dgemv.c
4*1858f998SYi Kong * This program is a C interface to dgemv.
5*1858f998SYi Kong * Written by Keita Teranishi
6*1858f998SYi Kong * 4/6/1998
7*1858f998SYi Kong *
8*1858f998SYi Kong */
9*1858f998SYi Kong #include "cblas.h"
10*1858f998SYi Kong #include "cblas_f77.h"
cblas_dgemv(const enum CBLAS_ORDER order,const enum CBLAS_TRANSPOSE TransA,const int M,const int N,const double alpha,const double * A,const int lda,const double * X,const int incX,const double beta,double * Y,const int incY)11*1858f998SYi Kong void cblas_dgemv(const enum CBLAS_ORDER order,
12*1858f998SYi Kong const enum CBLAS_TRANSPOSE TransA, const int M, const int N,
13*1858f998SYi Kong const double alpha, const double *A, const int lda,
14*1858f998SYi Kong const double *X, const int incX, const double beta,
15*1858f998SYi Kong double *Y, const int incY)
16*1858f998SYi Kong {
17*1858f998SYi Kong char TA;
18*1858f998SYi Kong #ifdef F77_CHAR
19*1858f998SYi Kong F77_CHAR F77_TA;
20*1858f998SYi Kong #else
21*1858f998SYi Kong #define F77_TA &TA
22*1858f998SYi Kong #endif
23*1858f998SYi Kong #ifdef F77_INT
24*1858f998SYi Kong F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_incX=incX, F77_incY=incY;
25*1858f998SYi Kong #else
26*1858f998SYi Kong #define F77_M M
27*1858f998SYi Kong #define F77_N N
28*1858f998SYi Kong #define F77_lda lda
29*1858f998SYi Kong #define F77_incX incX
30*1858f998SYi Kong #define F77_incY incY
31*1858f998SYi Kong #endif
32*1858f998SYi Kong extern int CBLAS_CallFromC;
33*1858f998SYi Kong extern int RowMajorStrg;
34*1858f998SYi Kong RowMajorStrg = 0;
35*1858f998SYi Kong
36*1858f998SYi Kong CBLAS_CallFromC = 1;
37*1858f998SYi Kong if (order == CblasColMajor)
38*1858f998SYi Kong {
39*1858f998SYi Kong if (TransA == CblasNoTrans) TA = 'N';
40*1858f998SYi Kong else if (TransA == CblasTrans) TA = 'T';
41*1858f998SYi Kong else if (TransA == CblasConjTrans) TA = 'C';
42*1858f998SYi Kong else
43*1858f998SYi Kong {
44*1858f998SYi Kong cblas_xerbla(2, "cblas_dgemv","Illegal TransA setting, %d\n", TransA);
45*1858f998SYi Kong CBLAS_CallFromC = 0;
46*1858f998SYi Kong RowMajorStrg = 0;
47*1858f998SYi Kong return;
48*1858f998SYi Kong }
49*1858f998SYi Kong #ifdef F77_CHAR
50*1858f998SYi Kong F77_TA = C2F_CHAR(&TA);
51*1858f998SYi Kong #endif
52*1858f998SYi Kong F77_dgemv(F77_TA, &F77_M, &F77_N, &alpha, A, &F77_lda, X, &F77_incX,
53*1858f998SYi Kong &beta, Y, &F77_incY);
54*1858f998SYi Kong }
55*1858f998SYi Kong else if (order == CblasRowMajor)
56*1858f998SYi Kong {
57*1858f998SYi Kong RowMajorStrg = 1;
58*1858f998SYi Kong if (TransA == CblasNoTrans) TA = 'T';
59*1858f998SYi Kong else if (TransA == CblasTrans) TA = 'N';
60*1858f998SYi Kong else if (TransA == CblasConjTrans) TA = 'N';
61*1858f998SYi Kong else
62*1858f998SYi Kong {
63*1858f998SYi Kong cblas_xerbla(2, "cblas_dgemv","Illegal TransA setting, %d\n", TransA);
64*1858f998SYi Kong CBLAS_CallFromC = 0;
65*1858f998SYi Kong RowMajorStrg = 0;
66*1858f998SYi Kong return;
67*1858f998SYi Kong }
68*1858f998SYi Kong #ifdef F77_CHAR
69*1858f998SYi Kong F77_TA = C2F_CHAR(&TA);
70*1858f998SYi Kong #endif
71*1858f998SYi Kong F77_dgemv(F77_TA, &F77_N, &F77_M, &alpha, A, &F77_lda, X,
72*1858f998SYi Kong &F77_incX, &beta, Y, &F77_incY);
73*1858f998SYi Kong }
74*1858f998SYi Kong else cblas_xerbla(1, "cblas_dgemv", "Illegal Order setting, %d\n", order);
75*1858f998SYi Kong CBLAS_CallFromC = 0;
76*1858f998SYi Kong RowMajorStrg = 0;
77*1858f998SYi Kong return;
78*1858f998SYi Kong }
79