1/*
2 *
3 * cblas_dspr.c
4 * This program is a C interface to dspr.
5 * Written by Keita Teranishi
6 * 4/6/1998
7 *
8 */
9
10#include "cblas.h"
11#include "cblas_f77.h"
12void cblas_dspr(const enum CBLAS_ORDER order, const enum CBLAS_UPLO Uplo,
13                const int N, const double alpha, const double *X,
14                const int incX, double *Ap)
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;
25#else
26   #define F77_N N
27   #define F77_incX incX
28#endif
29   extern int CBLAS_CallFromC;
30   extern int RowMajorStrg;
31   RowMajorStrg = 0;
32   CBLAS_CallFromC = 1;
33   if (order == CblasColMajor)
34   {
35      if (Uplo == CblasLower) UL = 'L';
36      else if (Uplo == CblasUpper) UL = 'U';
37      else
38      {
39         cblas_xerbla(2, "cblas_dspr","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_dspr(F77_UL, &F77_N, &alpha, X, &F77_incX, Ap);
49
50   }  else if (order == 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_dspr","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_dspr(F77_UL, &F77_N, &alpha, X, &F77_incX, Ap);
66   } else cblas_xerbla(1, "cblas_dspr", "Illegal Order setting, %d\n", order);
67   CBLAS_CallFromC = 0;
68   RowMajorStrg = 0;
69   return;
70}
71