1 /*
2 *
3 * cblas_sspr2.c
4 * This program is a C interface to sspr2.
5 * Written by Keita Teranishi
6 * 4/6/1998
7 *
8 */
9
10 #include "cblas.h"
11 #include "cblas_f77.h"
cblas_sspr2(const CBLAS_LAYOUT layout,const CBLAS_UPLO Uplo,const CBLAS_INDEX N,const float alpha,const float * X,const CBLAS_INDEX incX,const float * Y,const CBLAS_INDEX incY,float * A)12 void cblas_sspr2(const CBLAS_LAYOUT layout, const CBLAS_UPLO Uplo,
13 const CBLAS_INDEX N, const float alpha, const float *X,
14 const CBLAS_INDEX incX, const float *Y, const CBLAS_INDEX incY, float *A)
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_incY=incY;
25 #else
26 #define F77_N N
27 #define F77_incX incX
28 #define F77_incY incY
29 #endif
30
31 extern int CBLAS_CallFromC;
32 extern int RowMajorStrg;
33 RowMajorStrg = 0;
34 CBLAS_CallFromC = 1;
35 if (layout == CblasColMajor)
36 {
37 if (Uplo == CblasLower) UL = 'L';
38 else if (Uplo == CblasUpper) UL = 'U';
39 else
40 {
41 cblas_xerbla(2, "cblas_sspr2","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
50 F77_sspr2(F77_UL, &F77_N, &alpha, X, &F77_incX, Y, &F77_incY, A);
51
52 } else if (layout == CblasRowMajor)
53 {
54 RowMajorStrg = 1;
55 if (Uplo == CblasLower) UL = 'U';
56 else if (Uplo == CblasUpper) UL = 'L';
57 else
58 {
59 cblas_xerbla(2, "cblas_sspr2","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_sspr2(F77_UL, &F77_N, &alpha, X, &F77_incX, Y, &F77_incY, A);
68 } else cblas_xerbla(1, "cblas_sspr2", "Illegal layout setting, %d\n", layout);
69 CBLAS_CallFromC = 0;
70 RowMajorStrg = 0;
71 }
72