LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
cblas_ssyrk.c
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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"
12 void cblas_ssyrk(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo,
13  const 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( layout == 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 (layout == 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 layout setting, %d\n", layout);
106  CBLAS_CallFromC = 0;
107  RowMajorStrg = 0;
108  return;
109 }
110 
F77_ssyrk
#define F77_ssyrk
Definition: cblas_f77.h:169
cblas_ssyrk
void cblas_ssyrk(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo, const CBLAS_TRANSPOSE Trans, const int N, const int K, const float alpha, const float *A, const int lda, const float beta, float *C, const int ldc)
Definition: cblas_ssyrk.c:12
F77_K
#define F77_K
RowMajorStrg
int RowMajorStrg
Definition: cblas_globals.c:2
CBLAS_TRANSPOSE
CBLAS_TRANSPOSE
Definition: cblas.h:20
F77_N
#define F77_N
F77_ldc
#define F77_ldc
cblas_f77.h
CBLAS_UPLO
CBLAS_UPLO
Definition: cblas.h:21
CBLAS_LAYOUT
CBLAS_LAYOUT
Definition: cblas.h:19
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
F77_lda
#define F77_lda
F77_TR
#define F77_TR
F77_UL
#define F77_UL
N
#define N
Definition: example_user.c:10