1/*
2 *
3 * cblas_dsyr.c
4 * This program is a C interface to dsyr.
5 * Written by Keita Teranishi
6 * 4/6/1998
7 *
8 */
9
10#include "cblas.h"
11#include "cblas_f77.h"
12void cblas_dsyr(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  *A, const int lda)
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_lda=lda;
25#else
26   #define F77_N N
27   #define F77_incX incX
28   #define F77_lda  lda
29#endif
30   extern int CBLAS_CallFromC;
31   extern int RowMajorStrg;
32   RowMajorStrg = 0;
33   CBLAS_CallFromC = 1;
34   if (order == CblasColMajor)
35   {
36      if (Uplo == CblasLower) UL = 'L';
37      else if (Uplo == CblasUpper) UL = 'U';
38      else
39      {
40         cblas_xerbla(2, "cblas_dsyr","Illegal Uplo setting, %d\n",Uplo );
41         CBLAS_CallFromC = 0;
42         RowMajorStrg = 0;
43         return;
44      }
45      #ifdef F77_CHAR
46         F77_UL = C2F_CHAR(&UL);
47      #endif
48
49      F77_dsyr(F77_UL, &F77_N, &alpha, X, &F77_incX, A, &F77_lda);
50
51   }  else if (order == CblasRowMajor)
52   {
53      RowMajorStrg = 1;
54      if (Uplo == CblasLower) UL = 'U';
55      else if (Uplo == CblasUpper) UL = 'L';
56      else
57      {
58         cblas_xerbla(2, "cblas_dsyr","Illegal Uplo setting, %d\n",Uplo );
59         CBLAS_CallFromC = 0;
60         RowMajorStrg = 0;
61         return;
62      }
63      #ifdef F77_CHAR
64         F77_UL = C2F_CHAR(&UL);
65      #endif
66      F77_dsyr(F77_UL, &F77_N, &alpha, X, &F77_incX, A, &F77_lda);
67   } else cblas_xerbla(1, "cblas_dsyr", "Illegal Order setting, %d\n", order);
68   CBLAS_CallFromC = 0;
69   RowMajorStrg = 0;
70   return;
71}
72