1*1858f998SYi Kong /*
2*1858f998SYi Kong *
3*1858f998SYi Kong * cblas_sgbmv.c
4*1858f998SYi Kong * This program is a C interface to sgbmv.
5*1858f998SYi Kong * Written by Keita Teranishi
6*1858f998SYi Kong * 4/6/1998
7*1858f998SYi Kong *
8*1858f998SYi Kong */
9*1858f998SYi Kong
10*1858f998SYi Kong #include "cblas.h"
11*1858f998SYi Kong #include "cblas_f77.h"
cblas_sgbmv(const enum CBLAS_ORDER order,const enum CBLAS_TRANSPOSE TransA,const int M,const int N,const int KL,const int KU,const float alpha,const float * A,const int lda,const float * X,const int incX,const float beta,float * Y,const int incY)12*1858f998SYi Kong void cblas_sgbmv(const enum CBLAS_ORDER order,
13*1858f998SYi Kong const enum CBLAS_TRANSPOSE TransA, const int M, const int N,
14*1858f998SYi Kong const int KL, const int KU,
15*1858f998SYi Kong const float alpha, const float *A, const int lda,
16*1858f998SYi Kong const float *X, const int incX, const float beta,
17*1858f998SYi Kong float *Y, const int incY)
18*1858f998SYi Kong {
19*1858f998SYi Kong char TA;
20*1858f998SYi Kong #ifdef F77_CHAR
21*1858f998SYi Kong F77_CHAR F77_TA;
22*1858f998SYi Kong #else
23*1858f998SYi Kong #define F77_TA &TA
24*1858f998SYi Kong #endif
25*1858f998SYi Kong #ifdef F77_INT
26*1858f998SYi Kong F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_incX=incX, F77_incY=incY;
27*1858f998SYi Kong F77_INT F77_KL=KL,F77_KU=KU;
28*1858f998SYi Kong #else
29*1858f998SYi Kong #define F77_M M
30*1858f998SYi Kong #define F77_N N
31*1858f998SYi Kong #define F77_lda lda
32*1858f998SYi Kong #define F77_KL KL
33*1858f998SYi Kong #define F77_KU KU
34*1858f998SYi Kong #define F77_incX incX
35*1858f998SYi Kong #define F77_incY incY
36*1858f998SYi Kong #endif
37*1858f998SYi Kong extern int CBLAS_CallFromC;
38*1858f998SYi Kong extern int RowMajorStrg;
39*1858f998SYi Kong RowMajorStrg = 0;
40*1858f998SYi Kong
41*1858f998SYi Kong CBLAS_CallFromC = 1;
42*1858f998SYi Kong if (order == CblasColMajor)
43*1858f998SYi Kong {
44*1858f998SYi Kong if (TransA == CblasNoTrans) TA = 'N';
45*1858f998SYi Kong else if (TransA == CblasTrans) TA = 'T';
46*1858f998SYi Kong else if (TransA == CblasConjTrans) TA = 'C';
47*1858f998SYi Kong else
48*1858f998SYi Kong {
49*1858f998SYi Kong cblas_xerbla(2, "cblas_sgbmv","Illegal TransA setting, %d\n", TransA);
50*1858f998SYi Kong CBLAS_CallFromC = 0;
51*1858f998SYi Kong RowMajorStrg = 0;
52*1858f998SYi Kong return;
53*1858f998SYi Kong }
54*1858f998SYi Kong #ifdef F77_CHAR
55*1858f998SYi Kong F77_TA = C2F_CHAR(&TA);
56*1858f998SYi Kong #endif
57*1858f998SYi Kong F77_sgbmv(F77_TA, &F77_M, &F77_N, &F77_KL, &F77_KU, &alpha,
58*1858f998SYi Kong A, &F77_lda, X, &F77_incX, &beta, Y, &F77_incY);
59*1858f998SYi Kong }
60*1858f998SYi Kong else if (order == CblasRowMajor)
61*1858f998SYi Kong {
62*1858f998SYi Kong RowMajorStrg = 1;
63*1858f998SYi Kong if (TransA == CblasNoTrans) TA = 'T';
64*1858f998SYi Kong else if (TransA == CblasTrans) TA = 'N';
65*1858f998SYi Kong else if (TransA == CblasConjTrans) TA = 'N';
66*1858f998SYi Kong else
67*1858f998SYi Kong {
68*1858f998SYi Kong cblas_xerbla(2, "cblas_sgbmv","Illegal TransA setting, %d\n", TransA);
69*1858f998SYi Kong CBLAS_CallFromC = 0;
70*1858f998SYi Kong RowMajorStrg = 0;
71*1858f998SYi Kong return;
72*1858f998SYi Kong }
73*1858f998SYi Kong #ifdef F77_CHAR
74*1858f998SYi Kong F77_TA = C2F_CHAR(&TA);
75*1858f998SYi Kong #endif
76*1858f998SYi Kong F77_sgbmv(F77_TA, &F77_N, &F77_M, &F77_KU, &F77_KL, &alpha,
77*1858f998SYi Kong A ,&F77_lda, X, &F77_incX, &beta, Y, &F77_incY);
78*1858f998SYi Kong }
79*1858f998SYi Kong else cblas_xerbla(1, "cblas_sgbmv", "Illegal Order setting, %d\n", order);
80*1858f998SYi Kong CBLAS_CallFromC = 0;
81*1858f998SYi Kong RowMajorStrg = 0;
82*1858f998SYi Kong return;
83*1858f998SYi Kong }
84