LAPACK  3.8.0
LAPACK: Linear Algebra PACKage
cblas_dspmv.c
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1 /*
2  *
3  * cblas_dspmv.c
4  * This program is a C interface to dspmv.
5  * Written by Keita Teranishi
6  * 4/6/1998
7  *
8  */
9 
10 
11 #include "cblas.h"
12 #include "cblas_f77.h"
13 void cblas_dspmv(const CBLAS_LAYOUT layout,
14  const CBLAS_UPLO Uplo, const int N,
15  const double alpha, const double *AP,
16  const double *X, const int incX, const double beta,
17  double *Y, const int incY)
18 {
19  char UL;
20 #ifdef F77_CHAR
21  F77_CHAR F77_UL;
22 #else
23  #define F77_UL &UL
24 #endif
25 #ifdef F77_INT
26  F77_INT F77_N=N, F77_incX=incX, F77_incY=incY;
27 #else
28  #define F77_N N
29  #define F77_incX incX
30  #define F77_incY incY
31 #endif
32  extern int CBLAS_CallFromC;
33  extern int RowMajorStrg;
34  RowMajorStrg = 0;
35 
36  CBLAS_CallFromC = 1;
37  if (layout == CblasColMajor)
38  {
39  if (Uplo == CblasUpper) UL = 'U';
40  else if (Uplo == CblasLower) UL = 'L';
41  else
42  {
43  cblas_xerbla(2, "cblas_dspmv","Illegal Uplo setting, %d\n",Uplo );
44  CBLAS_CallFromC = 0;
45  RowMajorStrg = 0;
46  return;
47  }
48  #ifdef F77_CHAR
49  F77_UL = C2F_CHAR(&UL);
50  #endif
51  F77_dspmv(F77_UL, &F77_N, &alpha, AP, X,
52  &F77_incX, &beta, Y, &F77_incY);
53  }
54  else if (layout == CblasRowMajor)
55  {
56  RowMajorStrg = 1;
57  if (Uplo == CblasUpper) UL = 'L';
58  else if (Uplo == CblasLower) UL = 'U';
59  else
60  {
61  cblas_xerbla(2, "cblas_dspmv","Illegal Uplo setting, %d\n", Uplo);
62  CBLAS_CallFromC = 0;
63  RowMajorStrg = 0;
64  return;
65  }
66  #ifdef F77_CHAR
67  F77_UL = C2F_CHAR(&UL);
68  #endif
69  F77_dspmv(F77_UL, &F77_N, &alpha,
70  AP, X,&F77_incX, &beta, Y, &F77_incY);
71  }
72  else cblas_xerbla(1, "cblas_dspmv", "Illegal layout setting, %d\n", layout);
73  CBLAS_CallFromC = 0;
74  RowMajorStrg = 0;
75  return;
76 }
#define F77_UL
#define F77_N
int CBLAS_CallFromC
Definition: cblas_globals.c:1
#define N
Definition: example_user.c:10
void cblas_dspmv(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo, const int N, const double alpha, const double *AP, const double *X, const int incX, const double beta, double *Y, const int incY)
Definition: cblas_dspmv.c:13
CBLAS_LAYOUT
Definition: cblas.h:19
CBLAS_UPLO
Definition: cblas.h:21
#define F77_incY
void cblas_xerbla(int p, const char *rout, const char *form,...)
Definition: cblas_xerbla.c:8
#define F77_incX
int RowMajorStrg
Definition: cblas_globals.c:2
#define F77_dspmv
Definition: cblas_f77.h:102