LAPACK  3.8.0
LAPACK: Linear Algebra PACKage
cblas_dgbmv.c
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1 /*
2  *
3  * cblas_dgbmv.c
4  * This program is a C interface to dgbmv.
5  * Written by Keita Teranishi
6  * 4/6/1998
7  *
8  */
9 #include "cblas.h"
10 #include "cblas_f77.h"
11 void cblas_dgbmv(const CBLAS_LAYOUT layout,
12  const CBLAS_TRANSPOSE TransA, const int M, const int N,
13  const int KL, const int KU,
14  const double alpha, const double *A, const int lda,
15  const double *X, const int incX, const double beta,
16  double *Y, const int incY)
17 {
18  char TA;
19 #ifdef F77_CHAR
20  F77_CHAR F77_TA;
21 #else
22  #define F77_TA &TA
23 #endif
24 #ifdef F77_INT
25  F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_incX=incX, F77_incY=incY;
26  F77_INT F77_KL=KL,F77_KU=KU;
27 #else
28  #define F77_M M
29  #define F77_N N
30  #define F77_lda lda
31  #define F77_KL KL
32  #define F77_KU KU
33  #define F77_incX incX
34  #define F77_incY incY
35 #endif
36  extern int CBLAS_CallFromC;
37  extern int RowMajorStrg;
38  RowMajorStrg = 0;
39 
40  CBLAS_CallFromC = 1;
41  if (layout == CblasColMajor)
42  {
43  if (TransA == CblasNoTrans) TA = 'N';
44  else if (TransA == CblasTrans) TA = 'T';
45  else if (TransA == CblasConjTrans) TA = 'C';
46  else
47  {
48  cblas_xerbla(2, "cblas_dgbmv","Illegal TransA setting, %d\n", TransA);
49  CBLAS_CallFromC = 0;
50  RowMajorStrg = 0;
51  return;
52  }
53  #ifdef F77_CHAR
54  F77_TA = C2F_CHAR(&TA);
55  #endif
56  F77_dgbmv(F77_TA, &F77_M, &F77_N, &F77_KL, &F77_KU, &alpha,
57  A, &F77_lda, X, &F77_incX, &beta, Y, &F77_incY);
58  }
59  else if (layout == CblasRowMajor)
60  {
61  RowMajorStrg = 1;
62  if (TransA == CblasNoTrans) TA = 'T';
63  else if (TransA == CblasTrans) TA = 'N';
64  else if (TransA == CblasConjTrans) TA = 'N';
65  else
66  {
67  cblas_xerbla(2, "cblas_dgbmv","Illegal TransA setting, %d\n", TransA);
68  CBLAS_CallFromC = 0;
69  RowMajorStrg = 0;
70  return;
71  }
72  #ifdef F77_CHAR
73  F77_TA = C2F_CHAR(&TA);
74  #endif
75  F77_dgbmv(F77_TA, &F77_N, &F77_M, &F77_KU, &F77_KL, &alpha,
76  A ,&F77_lda, X,&F77_incX, &beta, Y, &F77_incY);
77  }
78  else cblas_xerbla(1, "cblas_dgbmv", "Illegal layout setting, %d\n", layout);
79  CBLAS_CallFromC = 0;
80  RowMajorStrg = 0;
81 }
#define F77_M
#define F77_incX
#define F77_KL
int CBLAS_CallFromC
Definition: cblas_globals.c:1
#define F77_dgbmv
Definition: cblas_f77.h:135
#define F77_lda
#define N
Definition: example_user.c:10
void cblas_dgbmv(const CBLAS_LAYOUT layout, const CBLAS_TRANSPOSE TransA, const int M, const int N, const int KL, const int KU, const double alpha, const double *A, const int lda, const double *X, const int incX, const double beta, double *Y, const int incY)
Definition: cblas_dgbmv.c:11
CBLAS_LAYOUT
Definition: cblas.h:19
#define F77_TA
CBLAS_TRANSPOSE
Definition: cblas.h:20
#define F77_incY
void cblas_xerbla(int p, const char *rout, const char *form,...)
Definition: cblas_xerbla.c:8
int RowMajorStrg
Definition: cblas_globals.c:2
#define F77_KU
#define F77_N