01: /*
02:  *
03:  * cblas_ssymv.c
04:  * This program is a C interface to ssymv.
05:  * Written by Keita Teranishi
06:  * 4/6/1998
07:  *
08:  */
09: 
10: #include "cblas.h"
11: #include "cblas_f77.h"
12: void cblas_ssymv(const enum CBLAS_ORDER order,
13:                  const enum CBLAS_UPLO Uplo, const int N,
14:                  const float alpha, const float  *A, const int lda,
15:                  const float  *X, const int incX, const float beta,
16:                  float  *Y, const int incY)
17: {
18:    char UL;
19: #ifdef F77_CHAR
20:    F77_CHAR F77_UL;
21: #else
22:    #define F77_UL &UL
23: #endif
24: #ifdef F77_INT
25:    F77_INT F77_N=N, F77_lda=lda, F77_incX=incX, F77_incY=incY;
26: #else
27:    #define F77_N N
28:    #define F77_lda lda
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_ssymv","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_ssymv(F77_UL, &F77_N, &alpha, A, &F77_lda, 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_ssymv","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_ssymv(F77_UL, &F77_N, &alpha,
70:                      A ,&F77_lda, X,&F77_incX, &beta, Y, &F77_incY);
71:    }
72:    else cblas_xerbla(1, "cblas_ssymv", "Illegal Order setting, %d\n", order);
73:    CBLAS_CallFromC = 0;
74:    RowMajorStrg = 0;
75:    return;
76: }
77: