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"
13void cblas_dspmv(const enum CBLAS_ORDER order,
14                 const enum 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 (order == 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 (order == 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 Order setting, %d\n", order);
73   CBLAS_CallFromC = 0;
74   RowMajorStrg = 0;
75   return;
76}
77