LAPACK  3.10.1
LAPACK: Linear Algebra PACKage
cblas_dspr2.c
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1 /*
2  * cblas_dspr2.c
3  * The program is a C interface to dspr2.
4  *
5  * Keita Teranishi 5/20/98
6  *
7  */
8 #include "cblas.h"
9 #include "cblas_f77.h"
10 void cblas_dspr2(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo,
11  const CBLAS_INT N, const double alpha, const double *X,
12  const CBLAS_INT incX, const double *Y, const CBLAS_INT incY, double *A)
13 {
14  char UL;
15 #ifdef F77_CHAR
16  F77_CHAR F77_UL;
17 #else
18  #define F77_UL &UL
19 #endif
20 
21 #ifdef F77_INT
22  F77_INT F77_N=N, F77_incX=incX, F77_incY=incY;
23 #else
24  #define F77_N N
25  #define F77_incX incX
26  #define F77_incY incY
27 #endif
28 
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_dspr2","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_dspr2(F77_UL, &F77_N, &alpha, X, &F77_incX, Y, &F77_incY, A);
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_dspr2","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_dspr2(F77_UL, &F77_N, &alpha, X, &F77_incX, Y, &F77_incY, A);
66  } else cblas_xerbla(1, "cblas_dspr2", "Illegal layout setting, %d\n", layout);
67  CBLAS_CallFromC = 0;
68  RowMajorStrg = 0;
69  return;
70 }
void F77_dspr2(int *layout, char *uplow, int *n, double *alpha, double *x, int *incx, double *y, int *incy, double *ap)
Definition: c_dblas2.c:533
CBLAS_UPLO
Definition: cblas.h:29
@ CblasLower
Definition: cblas.h:29
@ CblasUpper
Definition: cblas.h:29
void cblas_xerbla(CBLAS_INT p, const char *rout, const char *form,...)
Definition: cblas_xerbla.c:12
CBLAS_LAYOUT
Definition: cblas.h:27
@ CblasColMajor
Definition: cblas.h:27
@ CblasRowMajor
Definition: cblas.h:27
#define CBLAS_INT
Definition: cblas.h:23
#define F77_incX
#define F77_incY
void cblas_dspr2(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo, const CBLAS_INT N, const double alpha, const double *X, const CBLAS_INT incX, const double *Y, const CBLAS_INT incY, double *A)
Definition: cblas_dspr2.c:10
#define F77_N
#define F77_UL
#define F77_INT
Definition: cblas_f77.h:32
int CBLAS_CallFromC
Definition: cblas_globals.c:1
int RowMajorStrg
Definition: cblas_globals.c:2
#define N
Definition: example_user.c:10