1/*
2 *
3 * cblas_sspmv.c
4 * This program is a C interface to sspmv.
5 * Written by Keita Teranishi
6 * 4/6/1998
7 *
8 */
9#include "cblas.h"
10#include "cblas_f77.h"
11void cblas_sspmv(const enum CBLAS_ORDER order,
12                 const enum CBLAS_UPLO Uplo, const int N,
13                 const float alpha, const float  *AP,
14                 const float  *X, const int incX, const float beta,
15                 float  *Y, const int incY)
16{
17   char UL;
18#ifdef F77_CHAR
19   F77_CHAR F77_UL;
20#else
21   #define F77_UL &UL
22#endif
23#ifdef F77_INT
24   F77_INT F77_N=N, F77_incX=incX, F77_incY=incY;
25#else
26   #define F77_N N
27   #define F77_incX incX
28   #define F77_incY incY
29#endif
30   extern int CBLAS_CallFromC;
31   extern int RowMajorStrg;
32   RowMajorStrg = 0;
33
34   CBLAS_CallFromC = 1;
35   if (order == CblasColMajor)
36   {
37      if (Uplo == CblasUpper) UL = 'U';
38      else if (Uplo == CblasLower) UL = 'L';
39      else
40      {
41         cblas_xerbla(2, "cblas_sspmv","Illegal Uplo setting, %d\n",Uplo );
42         CBLAS_CallFromC = 0;
43         RowMajorStrg = 0;
44         return;
45      }
46      #ifdef F77_CHAR
47         F77_UL = C2F_CHAR(&UL);
48      #endif
49      F77_sspmv(F77_UL, &F77_N, &alpha, AP, X,
50                     &F77_incX, &beta, Y, &F77_incY);
51   }
52   else if (order == CblasRowMajor)
53   {
54      RowMajorStrg = 1;
55      if (Uplo == CblasUpper) UL = 'L';
56      else if (Uplo == CblasLower) UL = 'U';
57      else
58      {
59         cblas_xerbla(2, "cblas_sspmv","Illegal Uplo setting, %d\n", Uplo);
60         CBLAS_CallFromC = 0;
61         RowMajorStrg = 0;
62         return;
63      }
64      #ifdef F77_CHAR
65         F77_UL = C2F_CHAR(&UL);
66      #endif
67      F77_sspmv(F77_UL, &F77_N, &alpha,
68                     AP, X,&F77_incX, &beta, Y, &F77_incY);
69   }
70   else cblas_xerbla(1, "cblas_sspmv", "Illegal Order setting, %d\n", order);
71   CBLAS_CallFromC = 0;
72   RowMajorStrg = 0;
73}
74