LAPACK  3.9.0
LAPACK: Linear Algebra PACKage
cblas_zsyr2k.c
Go to the documentation of this file.
1 /*
2  *
3  * cblas_zsyr2k.c
4  * This program is a C interface to zsyr2k.
5  * Written by Keita Teranishi
6  * 4/8/1998
7  *
8  */
9 
10 #include "cblas.h"
11 #include "cblas_f77.h"
12 void cblas_zsyr2k(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 void *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  RowMajorStrg = 0;
40  CBLAS_CallFromC = 1;
41 
42  if( layout == CblasColMajor )
43  {
44 
45  if( Uplo == CblasUpper) UL='U';
46  else if ( Uplo == CblasLower ) UL='L';
47  else
48  {
49  cblas_xerbla(2, "cblas_zsyr2k", "Illegal Uplo setting, %d\n", Uplo);
50  CBLAS_CallFromC = 0;
51  RowMajorStrg = 0;
52  return;
53  }
54 
55  if( Trans == CblasTrans) TR ='T';
56  else if ( Trans == CblasConjTrans ) TR='C';
57  else if ( Trans == CblasNoTrans ) TR='N';
58  else
59  {
60  cblas_xerbla(3, "cblas_zsyr2k", "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_zsyr2k(F77_UL, F77_TR, &F77_N, &F77_K, alpha, A, &F77_lda,
73  B, &F77_ldb, beta, C, &F77_ldc);
74  } else if (layout == CblasRowMajor)
75  {
76  RowMajorStrg = 1;
77  if( Uplo == CblasUpper) UL='L';
78  else if ( Uplo == CblasLower ) UL='U';
79  else
80  {
81  cblas_xerbla(3, "cblas_zsyr2k", "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_zsyr2k", "Illegal Trans setting, %d\n", Trans);
92  CBLAS_CallFromC = 0;
93  RowMajorStrg = 0;
94  return;
95  }
96 
97  #ifdef F77_CHAR
98  F77_UL = C2F_CHAR(&UL);
99  F77_TR = C2F_CHAR(&TR);
100  #endif
101 
102  F77_zsyr2k(F77_UL, F77_TR, &F77_N, &F77_K, alpha, A, &F77_lda, B, &F77_ldb, beta, C, &F77_ldc);
103  }
104  else cblas_xerbla(1, "cblas_zsyr2k", "Illegal layout setting, %d\n", layout);
105  CBLAS_CallFromC = 0;
106  RowMajorStrg = 0;
107  return;
108 }
F77_zsyr2k
#define F77_zsyr2k
Definition: cblas_f77.h:188
cblas_f77.h
CBLAS_TRANSPOSE
CBLAS_TRANSPOSE
Definition: cblas.h:20
F77_UL
#define F77_UL
cblas_xerbla
void cblas_xerbla(int p, const char *rout, const char *form,...)
Definition: cblas_xerbla.c:8
CblasUpper
Definition: cblas.h:21
F77_ldb
#define F77_ldb
CblasColMajor
Definition: cblas.h:19
F77_N
#define F77_N
F77_TR
#define F77_TR
F77_ldc
#define F77_ldc
F77_lda
#define F77_lda
CblasTrans
Definition: cblas.h:20
CBLAS_CallFromC
int CBLAS_CallFromC
Definition: cblas_globals.c:1
cblas.h
CBLAS_LAYOUT
CBLAS_LAYOUT
Definition: cblas.h:19
CblasRowMajor
Definition: cblas.h:19
RowMajorStrg
int RowMajorStrg
Definition: cblas_globals.c:2
CblasNoTrans
Definition: cblas.h:20
CblasLower
Definition: cblas.h:21
F77_K
#define F77_K
CBLAS_UPLO
CBLAS_UPLO
Definition: cblas.h:21
N
#define N
Definition: example_user.c:10
CblasConjTrans
Definition: cblas.h:20
cblas_zsyr2k
void cblas_zsyr2k(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 void *beta, void *C, const int ldc)
Definition: cblas_zsyr2k.c:12