LAPACK  3.9.0
LAPACK: Linear Algebra PACKage
cblas_ssyr.c
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1 /*
2  *
3  * cblas_ssyr.c
4  * This program is a C interface to ssyr.
5  * Written by Keita Teranishi
6  * 4/6/1998
7  *
8  */
9 #include "cblas.h"
10 #include "cblas_f77.h"
11 void cblas_ssyr(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo,
12  const int N, const float alpha, const float *X,
13  const int incX, float *A, const int lda)
14 {
15  char UL;
16 #ifdef F77_CHAR
17  F77_CHAR F77_UL;
18 #else
19  #define F77_UL &UL
20 #endif
21 
22 #ifdef F77_INT
23  F77_INT F77_N=N, F77_incX=incX, F77_lda=lda;
24 #else
25  #define F77_N N
26  #define F77_incX incX
27  #define F77_lda lda
28 #endif
29  extern int CBLAS_CallFromC;
30  extern int RowMajorStrg;
31  RowMajorStrg = 0;
32  CBLAS_CallFromC = 1;
33  if (layout == CblasColMajor)
34  {
35  if (Uplo == CblasLower) UL = 'L';
36  else if (Uplo == CblasUpper) UL = 'U';
37  else
38  {
39  cblas_xerbla(2, "cblas_ssyr","Illegal Uplo setting, %d\n",Uplo );
40  CBLAS_CallFromC = 0;
41  RowMajorStrg = 0;
42  return;
43  }
44  #ifdef F77_CHAR
45  F77_UL = C2F_CHAR(&UL);
46  #endif
47 
48  F77_ssyr(F77_UL, &F77_N, &alpha, X, &F77_incX, A, &F77_lda);
49 
50  } else if (layout == CblasRowMajor)
51  {
52  RowMajorStrg = 1;
53  if (Uplo == CblasLower) UL = 'U';
54  else if (Uplo == CblasUpper) UL = 'L';
55  else
56  {
57  cblas_xerbla(2, "cblas_ssyr","Illegal Uplo setting, %d\n",Uplo );
58  CBLAS_CallFromC = 0;
59  RowMajorStrg = 0;
60  return;
61  }
62  #ifdef F77_CHAR
63  F77_UL = C2F_CHAR(&UL);
64  #endif
65  F77_ssyr(F77_UL, &F77_N, &alpha, X, &F77_incX, A, &F77_lda);
66  } else cblas_xerbla(1, "cblas_ssyr", "Illegal layout setting, %d\n", layout);
67  CBLAS_CallFromC = 0;
68  RowMajorStrg = 0;
69  return;
70 }
cblas_f77.h
cblas_xerbla
void cblas_xerbla(int p, const char *rout, const char *form,...)
Definition: cblas_xerbla.c:8
CblasUpper
Definition: cblas.h:21
CblasColMajor
Definition: cblas.h:19
F77_incX
#define F77_incX
F77_ssyr
#define F77_ssyr
Definition: cblas_f77.h:96
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
CblasLower
Definition: cblas.h:21
cblas_ssyr
void cblas_ssyr(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo, const int N, const float alpha, const float *X, const int incX, float *A, const int lda)
Definition: cblas_ssyr.c:11
F77_N
#define F77_N
F77_UL
#define F77_UL
F77_lda
#define F77_lda
CBLAS_UPLO
CBLAS_UPLO
Definition: cblas.h:21
N
#define N
Definition: example_user.c:10