1 /*
2 *
3 * cblas_ssbmv.c
4 * This program is a C interface to ssbmv.
5 * Written by Keita Teranishi
6 * 4/6/1998
7 *
8 */
9 #include "cblas.h"
10 #include "cblas_f77.h"
cblas_ssbmv(const enum CBLAS_ORDER order,const enum CBLAS_UPLO Uplo,const int N,const int K,const float alpha,const float * A,const int lda,const float * X,const int incX,const float beta,float * Y,const int incY)11 void cblas_ssbmv(const enum CBLAS_ORDER order, const enum CBLAS_UPLO Uplo,
12 const int N, const int K, const float alpha, const float *A,
13 const int lda, const float *X, const int incX,
14 const float beta, float *Y, const int incY)
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_K=K, F77_lda=lda, F77_incX=incX, F77_incY=incY;
25 #else
26 #define F77_N N
27 #define F77_K K
28 #define F77_lda lda
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
40 if (Uplo == CblasUpper) UL = 'U';
41 else if (Uplo == CblasLower) UL = 'L';
42 else
43 {
44 cblas_xerbla(2, "cblas_ssbmv","Illegal Uplo setting, %d\n",Uplo );
45 CBLAS_CallFromC = 0;
46 RowMajorStrg = 0;
47 return;
48 }
49 #ifdef F77_CHAR
50 F77_UL = C2F_CHAR(&UL);
51 #endif
52 F77_ssbmv(F77_UL, &F77_N, &F77_K, &alpha, A, &F77_lda, X,
53 &F77_incX, &beta, Y, &F77_incY);
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_ssbmv","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_ssbmv(F77_UL, &F77_N, &F77_K, &alpha, A, &F77_lda, X,
70 &F77_incX, &beta, Y, &F77_incY);
71 }
72 else cblas_xerbla(1, "cblas_ssbmv", "Illegal Order setting, %d\n", order);
73 CBLAS_CallFromC = 0;
74 RowMajorStrg = 0;
75 return;
76 }
77