LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
cblas_sspr2.c
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1 /*
2  *
3  * cblas_sspr2.c
4  * This program is a C interface to sspr2.
5  * Written by Keita Teranishi
6  * 4/6/1998
7  *
8  */
9 
10 #include "cblas.h"
11 #include "cblas_f77.h"
12 void cblas_sspr2(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo,
13  const int N, const float alpha, const float *X,
14  const int incX, const float *Y, const int incY, float *A)
15 {
16  char UL;
17 #ifdef F77_CHAR
18  F77_CHAR F77_UL;
19 #else
20  #define F77_UL &UL
21 #endif
22 
23 #ifdef F77_INT
24  F77_INT F77_N=N, F77_incX=incX, F77_incY=incY;
25 #else
26  #define F77_N N
27  #define F77_incX incX
28  #define F77_incY incY
29 #endif
30 
31  extern int CBLAS_CallFromC;
32  extern int RowMajorStrg;
33  RowMajorStrg = 0;
34  CBLAS_CallFromC = 1;
35  if (layout == CblasColMajor)
36  {
37  if (Uplo == CblasLower) UL = 'L';
38  else if (Uplo == CblasUpper) UL = 'U';
39  else
40  {
41  cblas_xerbla(2, "cblas_sspr2","Illegal Uplo setting, %d\n",Uplo );
42  CBLAS_CallFromC = 0;
43  RowMajorStrg = 0;
44  return;
45  }
46  #ifdef F77_CHAR
47  F77_UL = C2F_CHAR(&UL);
48  #endif
49 
50  F77_sspr2(F77_UL, &F77_N, &alpha, X, &F77_incX, Y, &F77_incY, A);
51 
52  } else if (layout == CblasRowMajor)
53  {
54  RowMajorStrg = 1;
55  if (Uplo == CblasLower) UL = 'U';
56  else if (Uplo == CblasUpper) UL = 'L';
57  else
58  {
59  cblas_xerbla(2, "cblas_sspr2","Illegal Uplo setting, %d\n",Uplo );
60  CBLAS_CallFromC = 0;
61  RowMajorStrg = 0;
62  return;
63  }
64  #ifdef F77_CHAR
65  F77_UL = C2F_CHAR(&UL);
66  #endif
67  F77_sspr2(F77_UL, &F77_N, &alpha, X, &F77_incX, Y, &F77_incY, A);
68  } else cblas_xerbla(1, "cblas_sspr2", "Illegal layout setting, %d\n", layout);
69  CBLAS_CallFromC = 0;
70  RowMajorStrg = 0;
71 }
RowMajorStrg
int RowMajorStrg
Definition: cblas_globals.c:2
F77_sspr2
#define F77_sspr2
Definition: cblas_f77.h:99
F77_UL
#define F77_UL
F77_incX
#define F77_incX
F77_N
#define F77_N
cblas_f77.h
CBLAS_UPLO
CBLAS_UPLO
Definition: cblas.h:21
CBLAS_LAYOUT
CBLAS_LAYOUT
Definition: cblas.h:19
F77_incY
#define F77_incY
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
cblas_sspr2
void cblas_sspr2(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo, const int N, const float alpha, const float *X, const int incX, const float *Y, const int incY, float *A)
Definition: cblas_sspr2.c:12