01: /*
02:  *
03:  * cblas_sspmv.c
04:  * This program is a C interface to sspmv.
05:  * Written by Keita Teranishi
06:  * 4/6/1998
07:  *
08:  */
09: #include "cblas.h"
10: #include "cblas_f77.h"
11: void 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: