1/*
2 *
3 * cblas_ssyrk.c
4 * This program is a C interface to ssyrk.
5 * Written by Keita Teranishi
6 * 4/8/1998
7 *
8 */
9
10#include "cblas.h"
11#include "cblas_f77.h"
12void cblas_ssyrk(const enum CBLAS_ORDER Order, const enum CBLAS_UPLO Uplo,
13                 const enum CBLAS_TRANSPOSE Trans, const int N, const int K,
14                 const float alpha, const float  *A, const int lda,
15                 const float beta, float  *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_ssyrk",
48                       "Illegal Uplo setting, %d\n", Uplo);
49         CBLAS_CallFromC = 0;
50         RowMajorStrg = 0;
51         return;
52      }
53
54      if( Trans == CblasTrans) TR ='T';
55      else if ( Trans == CblasConjTrans ) TR='C';
56      else if ( Trans == CblasNoTrans )   TR='N';
57      else
58      {
59         cblas_xerbla(3, "cblas_ssyrk",
60                       "Illegal Trans setting, %d\n", Trans);
61         CBLAS_CallFromC = 0;
62         RowMajorStrg = 0;
63         return;
64      }
65
66
67      #ifdef F77_CHAR
68         F77_UL = C2F_CHAR(&UL);
69         F77_TR = C2F_CHAR(&TR);
70      #endif
71
72      F77_ssyrk(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda, &beta, C, &F77_ldc);
73   } else if (Order == CblasRowMajor)
74   {
75      RowMajorStrg = 1;
76      if( Uplo == CblasUpper) UL='L';
77      else if ( Uplo == CblasLower ) UL='U';
78      else
79      {
80         cblas_xerbla(3, "cblas_ssyrk",
81                       "Illegal Uplo setting, %d\n", Uplo);
82         CBLAS_CallFromC = 0;
83         RowMajorStrg = 0;
84         return;
85      }
86      if( Trans == CblasTrans) TR ='N';
87      else if ( Trans == CblasConjTrans ) TR='N';
88      else if ( Trans == CblasNoTrans )   TR='T';
89      else
90      {
91         cblas_xerbla(3, "cblas_ssyrk",
92                       "Illegal Trans setting, %d\n", Trans);
93         CBLAS_CallFromC = 0;
94         RowMajorStrg = 0;
95         return;
96      }
97
98      #ifdef F77_CHAR
99         F77_UL = C2F_CHAR(&UL);
100         F77_TR = C2F_CHAR(&TR);
101      #endif
102
103      F77_ssyrk(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda, &beta, C, &F77_ldc);
104   } else  cblas_xerbla(1, "cblas_ssyrk",
105                     "Illegal Order setting, %d\n", Order);
106   CBLAS_CallFromC = 0;
107   RowMajorStrg = 0;
108   return;
109}
110
111