01: /*
02:  *
03:  * cblas_dsyr.c
04:  * This program is a C interface to dsyr.
05:  * Written by Keita Teranishi
06:  * 4/6/1998
07:  *
08:  */
09: 
10: #include "cblas.h"
11: #include "cblas_f77.h"
12: void cblas_dsyr(const enum CBLAS_ORDER order, const enum CBLAS_UPLO Uplo,
13:                 const int N, const double  alpha, const double  *X,
14:                 const int incX, double  *A, const int lda)
15: {
16:    char UL;
17: #ifdef F77_CHAR
18:    F77_CHAR F77_UL;
19: #else
20:    #define F77_UL &UL
21: #endif
22: 
23: #ifdef F77_INT
24:    F77_INT F77_N=N, F77_incX=incX, F77_lda=lda;
25: #else
26:    #define F77_N N
27:    #define F77_incX incX
28:    #define F77_lda  lda
29: #endif
30:    extern int CBLAS_CallFromC;
31:    extern int RowMajorStrg;
32:    RowMajorStrg = 0;
33:    CBLAS_CallFromC = 1;
34:    if (order == CblasColMajor)
35:    {
36:       if (Uplo == CblasLower) UL = 'L';
37:       else if (Uplo == CblasUpper) UL = 'U';
38:       else
39:       {
40:          cblas_xerbla(2, "cblas_dsyr","Illegal Uplo setting, %d\n",Uplo );
41:          CBLAS_CallFromC = 0;
42:          RowMajorStrg = 0;
43:          return;
44:       }
45:       #ifdef F77_CHAR
46:          F77_UL = C2F_CHAR(&UL);
47:       #endif
48: 
49:       F77_dsyr(F77_UL, &F77_N, &alpha, X, &F77_incX, A, &F77_lda);
50: 
51:    }  else if (order == CblasRowMajor)
52:    {
53:       RowMajorStrg = 1;
54:       if (Uplo == CblasLower) UL = 'U';
55:       else if (Uplo == CblasUpper) UL = 'L';
56:       else
57:       {
58:          cblas_xerbla(2, "cblas_dsyr","Illegal Uplo setting, %d\n",Uplo );
59:          CBLAS_CallFromC = 0;
60:          RowMajorStrg = 0;
61:          return;
62:       }
63:       #ifdef F77_CHAR
64:          F77_UL = C2F_CHAR(&UL);
65:       #endif
66:       F77_dsyr(F77_UL, &F77_N, &alpha, X, &F77_incX, A, &F77_lda);
67:    } else cblas_xerbla(1, "cblas_dsyr", "Illegal Order setting, %d\n", order);
68:    CBLAS_CallFromC = 0;
69:    RowMajorStrg = 0;
70:    return;
71: }
72: