1 /*
2 *
3 * cblas_dspmv.c
4 * This program is a C interface to dspmv.
5 * Written by Keita Teranishi
6 * 4/6/1998
7 *
8 */
9
10
11 #include "cblas.h"
12 #include "cblas_f77.h"
cblas_dspmv(const enum CBLAS_ORDER order,const enum CBLAS_UPLO Uplo,const int N,const double alpha,const double * AP,const double * X,const int incX,const double beta,double * Y,const int incY)13 void cblas_dspmv(const enum CBLAS_ORDER order,
14 const enum CBLAS_UPLO Uplo, const int N,
15 const double alpha, const double *AP,
16 const double *X, const int incX, const double beta,
17 double *Y, const int incY)
18 {
19 char UL;
20 #ifdef F77_CHAR
21 F77_CHAR F77_UL;
22 #else
23 #define F77_UL &UL
24 #endif
25 #ifdef F77_INT
26 F77_INT F77_N=N, F77_incX=incX, F77_incY=incY;
27 #else
28 #define F77_N N
29 #define F77_incX incX
30 #define F77_incY incY
31 #endif
32 extern int CBLAS_CallFromC;
33 extern int RowMajorStrg;
34 RowMajorStrg = 0;
35
36 CBLAS_CallFromC = 1;
37 if (order == CblasColMajor)
38 {
39 if (Uplo == CblasUpper) UL = 'U';
40 else if (Uplo == CblasLower) UL = 'L';
41 else
42 {
43 cblas_xerbla(2, "cblas_dspmv","Illegal Uplo setting, %d\n",Uplo );
44 CBLAS_CallFromC = 0;
45 RowMajorStrg = 0;
46 return;
47 }
48 #ifdef F77_CHAR
49 F77_UL = C2F_CHAR(&UL);
50 #endif
51 F77_dspmv(F77_UL, &F77_N, &alpha, AP, X,
52 &F77_incX, &beta, Y, &F77_incY);
53 }
54 else if (order == CblasRowMajor)
55 {
56 RowMajorStrg = 1;
57 if (Uplo == CblasUpper) UL = 'L';
58 else if (Uplo == CblasLower) UL = 'U';
59 else
60 {
61 cblas_xerbla(2, "cblas_dspmv","Illegal Uplo setting, %d\n", Uplo);
62 CBLAS_CallFromC = 0;
63 RowMajorStrg = 0;
64 return;
65 }
66 #ifdef F77_CHAR
67 F77_UL = C2F_CHAR(&UL);
68 #endif
69 F77_dspmv(F77_UL, &F77_N, &alpha,
70 AP, X,&F77_incX, &beta, Y, &F77_incY);
71 }
72 else cblas_xerbla(1, "cblas_dspmv", "Illegal Order setting, %d\n", order);
73 CBLAS_CallFromC = 0;
74 RowMajorStrg = 0;
75 return;
76 }
77