01: /*
02:  *
03:  * cblas_sgbmv.c
04:  * This program is a C interface to sgbmv.
05:  * Written by Keita Teranishi
06:  * 4/6/1998
07:  *
08:  */
09: 
10: #include "cblas.h"
11: #include "cblas_f77.h"
12: void cblas_sgbmv(const enum CBLAS_ORDER order,
13:                  const enum CBLAS_TRANSPOSE TransA, const int M, const int N,
14:                  const int KL, const int KU,
15:                  const float alpha, const float *A, const int lda,
16:                  const float  *X, const int incX, const float beta,
17:                  float  *Y, const int incY)
18: {
19:    char TA;
20: #ifdef F77_CHAR
21:    F77_CHAR F77_TA;
22: #else
23:    #define F77_TA &TA
24: #endif
25: #ifdef F77_INT
26:    F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_incX=incX, F77_incY=incY;
27:    F77_INT F77_KL=KL,F77_KU=KU;
28: #else
29:    #define F77_M M
30:    #define F77_N N
31:    #define F77_lda lda
32:    #define F77_KL KL
33:    #define F77_KU KU
34:    #define F77_incX incX
35:    #define F77_incY incY
36: #endif
37:    extern int CBLAS_CallFromC;
38:    extern int RowMajorStrg;
39:    RowMajorStrg = 0;
40: 
41:    CBLAS_CallFromC = 1;
42:    if (order == CblasColMajor)
43:    {
44:       if (TransA == CblasNoTrans) TA = 'N';
45:       else if (TransA == CblasTrans) TA = 'T';
46:       else if (TransA == CblasConjTrans) TA = 'C';
47:       else
48:       {
49:          cblas_xerbla(2, "cblas_sgbmv","Illegal TransA setting, %d\n", TransA);
50:          CBLAS_CallFromC = 0;
51:          RowMajorStrg = 0;
52:          return;
53:       }
54:       #ifdef F77_CHAR
55:          F77_TA = C2F_CHAR(&TA);
56:       #endif
57:       F77_sgbmv(F77_TA, &F77_M, &F77_N, &F77_KL, &F77_KU, &alpha,
58:                      A, &F77_lda, X, &F77_incX, &beta, Y, &F77_incY);
59:    }
60:    else if (order == CblasRowMajor)
61:    {
62:       RowMajorStrg = 1;
63:       if (TransA == CblasNoTrans) TA = 'T';
64:       else if (TransA == CblasTrans) TA = 'N';
65:       else if (TransA == CblasConjTrans) TA = 'N';
66:       else
67:       {
68:          cblas_xerbla(2, "cblas_sgbmv","Illegal TransA setting, %d\n", TransA);
69:          CBLAS_CallFromC = 0;
70:          RowMajorStrg = 0;
71:          return;
72:       }
73:       #ifdef F77_CHAR
74:          F77_TA = C2F_CHAR(&TA);
75:       #endif
76:       F77_sgbmv(F77_TA, &F77_N, &F77_M, &F77_KU, &F77_KL, &alpha,
77:                      A ,&F77_lda, X, &F77_incX, &beta, Y, &F77_incY);
78:    }
79:    else cblas_xerbla(1, "cblas_sgbmv", "Illegal Order setting, %d\n", order);
80:    CBLAS_CallFromC = 0;
81:    RowMajorStrg = 0;
82:    return;
83: }
84: