1/*
2 *
3 * cblas_zherk.c
4 * This program is a C interface to zherk.
5 * Written by Keita Teranishi
6 * 4/8/1998
7 *
8 */
9
10#include "cblas.h"
11#include "cblas_f77.h"
12void cblas_zherk(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 void *A, const int lda,
15                 const double beta, void *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      if( Uplo == CblasUpper) UL='U';
43      else if ( Uplo == CblasLower ) UL='L';
44      else
45      {
46         cblas_xerbla(2, "cblas_zherk", "Illegal Uplo setting, %d\n", Uplo);
47         CBLAS_CallFromC = 0;
48         RowMajorStrg = 0;
49         return;
50      }
51
52      if( Trans == CblasTrans) TR ='T';
53      else if ( Trans == CblasConjTrans ) TR='C';
54      else if ( Trans == CblasNoTrans )   TR='N';
55      else
56      {
57         cblas_xerbla(3, "cblas_zherk", "Illegal Trans setting, %d\n", Trans);
58         CBLAS_CallFromC = 0;
59         RowMajorStrg = 0;
60         return;
61      }
62
63      #ifdef F77_CHAR
64         F77_UL = C2F_CHAR(&UL);
65         F77_TR = C2F_CHAR(&TR);
66      #endif
67
68      F77_zherk(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda,
69                     &beta, C, &F77_ldc);
70   } else if (Order == CblasRowMajor)
71   {
72      RowMajorStrg = 1;
73      if( Uplo == CblasUpper) UL='L';
74      else if ( Uplo == CblasLower ) UL='U';
75      else
76      {
77         cblas_xerbla(3, "cblas_zherk", "Illegal Uplo setting, %d\n", Uplo);
78         CBLAS_CallFromC = 0;
79         RowMajorStrg = 0;
80         return;
81      }
82      if( Trans == CblasTrans) TR ='N';
83      else if ( Trans == CblasConjTrans ) TR='N';
84      else if ( Trans == CblasNoTrans )   TR='C';
85      else
86      {
87         cblas_xerbla(3, "cblas_zherk", "Illegal Trans setting, %d\n", Trans);
88         CBLAS_CallFromC = 0;
89         RowMajorStrg = 0;
90         return;
91      }
92
93      #ifdef F77_CHAR
94         F77_UL = C2F_CHAR(&UL);
95         F77_SD = C2F_CHAR(&SD);
96      #endif
97
98      F77_zherk(F77_UL, F77_TR, &F77_N, &F77_K, &alpha, A, &F77_lda,
99                &beta, C, &F77_ldc);
100   }
101   else  cblas_xerbla(1, "cblas_zherk", "Illegal Order setting, %d\n", Order);
102   CBLAS_CallFromC = 0;
103   RowMajorStrg = 0;
104   return;
105}
106