1/*
2 *
3 * cblas_dsyrk.c
4 * This program is a C interface to dsyrk.
5 * Written by Keita Teranishi
6 * 4/8/1998
7 *
8 */
9
10#include "cblas.h"
11#include "cblas_f77.h"
12void cblas_dsyrk(const enum CBLAS_ORDER Order, const enum CBLAS_UPLO Uplo,
13                 const enum CBLAS_TRANSPOSE Trans, const int N, const int K,
14                 const double alpha, const double  *A, const int lda,
15                 const double beta, double  *C, const int ldc)
16{
17   char UL, TR;
18#ifdef F77_CHAR
19   F77_CHAR F77_TR, F77_UL;
20#else
21   #define F77_TR &TR
22   #define F77_UL &UL
23#endif
24
25#ifdef F77_INT
26   F77_INT F77_N=N, F77_K=K, F77_lda=lda;
27   F77_INT F77_ldc=ldc;
28#else
29   #define F77_N N
30   #define F77_K K
31   #define F77_lda lda
32   #define F77_ldc ldc
33#endif
34
35   extern int CBLAS_CallFromC;
36   extern int RowMajorStrg;
37   RowMajorStrg = 0;
38   CBLAS_CallFromC = 1;
39
40   if( Order == CblasColMajor )
41   {
42
43      if( Uplo == CblasUpper) UL='U';
44      else if ( Uplo == CblasLower ) UL='L';
45      else
46      {
47         cblas_xerbla(2, "cblas_dsyrk","Illegal Uplo setting, %d\n", Uplo);
48         CBLAS_CallFromC = 0;
49         RowMajorStrg = 0;
50         return;
51      }
52
53      if( Trans == CblasTrans) TR ='T';
54      else if ( Trans == CblasConjTrans ) TR='C';
55      else if ( Trans == CblasNoTrans )   TR='N';
56      else
57      {
58         cblas_xerbla(3, "cblas_dsyrk","Illegal Trans setting, %d\n", Trans);
59         CBLAS_CallFromC = 0;
60         RowMajorStrg = 0;
61         return;
62      }
63
64
65      #ifdef F77_CHAR
66         F77_UL = C2F_CHAR(&UL);
67         F77_TR = C2F_CHAR(&TR);
68      #endif
69
70      F77_dsyrk(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda,
71                &beta, C, &F77_ldc);
72   } else if (Order == CblasRowMajor)
73   {
74      RowMajorStrg = 1;
75      if( Uplo == CblasUpper) UL='L';
76      else if ( Uplo == CblasLower ) UL='U';
77      else
78      {
79         cblas_xerbla(3, "cblas_dsyrk","Illegal Uplo setting, %d\n", Uplo);
80         CBLAS_CallFromC = 0;
81         RowMajorStrg = 0;
82         return;
83      }
84      if( Trans == CblasTrans) TR ='N';
85      else if ( Trans == CblasConjTrans ) TR='N';
86      else if ( Trans == CblasNoTrans )   TR='T';
87      else
88      {
89         cblas_xerbla(3, "cblas_dsyrk","Illegal Trans setting, %d\n", Trans);
90         CBLAS_CallFromC = 0;
91         RowMajorStrg = 0;
92         return;
93      }
94
95      #ifdef F77_CHAR
96         F77_UL = C2F_CHAR(&UL);
97         F77_TR = C2F_CHAR(&TR);
98      #endif
99
100      F77_dsyrk(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda,
101                     &beta, C, &F77_ldc);
102   }
103   else cblas_xerbla(1, "cblas_dsyrk","Illegal Order setting, %d\n", Order);
104   CBLAS_CallFromC = 0;
105   RowMajorStrg = 0;
106   return;
107}
108
109