LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
cblas_zher2k.c
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1 /*
2  *
3  * cblas_zher2k.c
4  * This program is a C interface to zher2k.
5  * Written by Keita Teranishi
6  * 4/8/1998
7  *
8  */
9 
10 #include "cblas.h"
11 #include "cblas_f77.h"
12 void cblas_zher2k(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo,
13  const CBLAS_TRANSPOSE Trans, const int N, const int K,
14  const void *alpha, const void *A, const int lda,
15  const void *B, const int ldb, const double beta,
16  void *C, const int ldc)
17 {
18  char UL, TR;
19 #ifdef F77_CHAR
20  F77_CHAR F77_TR, F77_UL;
21 #else
22  #define F77_TR &TR
23  #define F77_UL &UL
24 #endif
25 
26 #ifdef F77_INT
27  F77_INT F77_N=N, F77_K=K, F77_lda=lda, F77_ldb=ldb;
28  F77_INT F77_ldc=ldc;
29 #else
30  #define F77_N N
31  #define F77_K K
32  #define F77_lda lda
33  #define F77_ldb ldb
34  #define F77_ldc ldc
35 #endif
36 
37  extern int CBLAS_CallFromC;
38  extern int RowMajorStrg;
39  double ALPHA[2];
40  const double *alp=(double *)alpha;
41 
42  CBLAS_CallFromC = 1;
43  RowMajorStrg = 0;
44 
45  if( layout == CblasColMajor )
46  {
47 
48  if( Uplo == CblasUpper) UL='U';
49  else if ( Uplo == CblasLower ) UL='L';
50  else
51  {
52  cblas_xerbla(2, "cblas_zher2k", "Illegal Uplo setting, %d\n", Uplo);
53  CBLAS_CallFromC = 0;
54  RowMajorStrg = 0;
55  return;
56  }
57 
58  if( Trans == CblasTrans) TR ='T';
59  else if ( Trans == CblasConjTrans ) TR='C';
60  else if ( Trans == CblasNoTrans ) TR='N';
61  else
62  {
63  cblas_xerbla(3, "cblas_zher2k", "Illegal Trans setting, %d\n", Trans);
64  CBLAS_CallFromC = 0;
65  RowMajorStrg = 0;
66  return;
67  }
68 
69  #ifdef F77_CHAR
70  F77_UL = C2F_CHAR(&UL);
71  F77_TR = C2F_CHAR(&TR);
72  #endif
73 
74  F77_zher2k(F77_UL, F77_TR, &F77_N, &F77_K, alpha, A, &F77_lda, B, &F77_ldb, &beta, C, &F77_ldc);
75  } else if (layout == CblasRowMajor)
76  {
77  RowMajorStrg = 1;
78 
79  if( Uplo == CblasUpper) UL='L';
80  else if ( Uplo == CblasLower ) UL='U';
81  else
82  {
83  cblas_xerbla(2, "cblas_zher2k", "Illegal Uplo setting, %d\n", Uplo);
84  CBLAS_CallFromC = 0;
85  RowMajorStrg = 0;
86  return;
87  }
88  if( Trans == CblasTrans) TR ='N';
89  else if ( Trans == CblasConjTrans ) TR='N';
90  else if ( Trans == CblasNoTrans ) TR='C';
91  else
92  {
93  cblas_xerbla(3, "cblas_zher2k", "Illegal Trans setting, %d\n", Trans);
94  CBLAS_CallFromC = 0;
95  RowMajorStrg = 0;
96  return;
97  }
98  #ifdef F77_CHAR
99  F77_UL = C2F_CHAR(&UL);
100  F77_TR = C2F_CHAR(&TR);
101  #endif
102 
103  ALPHA[0]= *alp;
104  ALPHA[1]= -alp[1];
105  F77_zher2k(F77_UL,F77_TR, &F77_N, &F77_K, ALPHA, A, &F77_lda, B, &F77_ldb, &beta, C, &F77_ldc);
106  } else cblas_xerbla(1, "cblas_zher2k", "Illegal layout setting, %d\n", layout);
107  CBLAS_CallFromC = 0;
108  RowMajorStrg = 0;
109  return;
110 }
F77_N
#define F77_N
RowMajorStrg
int RowMajorStrg
Definition: cblas_globals.c:2
F77_ldc
#define F77_ldc
F77_K
#define F77_K
F77_TR
#define F77_TR
F77_lda
#define F77_lda
F77_UL
#define F77_UL
CBLAS_TRANSPOSE
CBLAS_TRANSPOSE
Definition: cblas.h:20
cblas_zher2k
void cblas_zher2k(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo, const CBLAS_TRANSPOSE Trans, const int N, const int K, const void *alpha, const void *A, const int lda, const void *B, const int ldb, const double beta, void *C, const int ldc)
Definition: cblas_zher2k.c:12
cblas_f77.h
CBLAS_UPLO
CBLAS_UPLO
Definition: cblas.h:21
CBLAS_LAYOUT
CBLAS_LAYOUT
Definition: cblas.h:19
F77_ldb
#define F77_ldb
F77_zher2k
#define F77_zher2k
Definition: cblas_f77.h:166
CBLAS_CallFromC
int CBLAS_CallFromC
Definition: cblas_globals.c:1
cblas_xerbla
void cblas_xerbla(int p, const char *rout, const char *form,...)
Definition: cblas_xerbla.c:8
N
#define N
Definition: example_user.c:10