1 /*
2 *
3 * cblas_sspmv.c
4 * This program is a C interface to sspmv.
5 * Written by Keita Teranishi
6 * 4/6/1998
7 *
8 */
9 #include "cblas.h"
10 #include "cblas_f77.h"
cblas_sspmv(const enum CBLAS_ORDER order,const enum CBLAS_UPLO Uplo,const int N,const float alpha,const float * AP,const float * X,const int incX,const float beta,float * Y,const int incY)11 void cblas_sspmv(const enum CBLAS_ORDER order,
12 const enum CBLAS_UPLO Uplo, const int N,
13 const float alpha, const float *AP,
14 const float *X, const int incX, const float beta,
15 float *Y, const int incY)
16 {
17 char UL;
18 #ifdef F77_CHAR
19 F77_CHAR F77_UL;
20 #else
21 #define F77_UL &UL
22 #endif
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 extern int CBLAS_CallFromC;
31 extern int RowMajorStrg;
32 RowMajorStrg = 0;
33
34 CBLAS_CallFromC = 1;
35 if (order == CblasColMajor)
36 {
37 if (Uplo == CblasUpper) UL = 'U';
38 else if (Uplo == CblasLower) UL = 'L';
39 else
40 {
41 cblas_xerbla(2, "cblas_sspmv","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 F77_sspmv(F77_UL, &F77_N, &alpha, AP, X,
50 &F77_incX, &beta, Y, &F77_incY);
51 }
52 else if (order == CblasRowMajor)
53 {
54 RowMajorStrg = 1;
55 if (Uplo == CblasUpper) UL = 'L';
56 else if (Uplo == CblasLower) UL = 'U';
57 else
58 {
59 cblas_xerbla(2, "cblas_sspmv","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_sspmv(F77_UL, &F77_N, &alpha,
68 AP, X,&F77_incX, &beta, Y, &F77_incY);
69 }
70 else cblas_xerbla(1, "cblas_sspmv", "Illegal Order setting, %d\n", order);
71 CBLAS_CallFromC = 0;
72 RowMajorStrg = 0;
73 }
74