1*1858f998SYi Kong /*
2*1858f998SYi Kong *
3*1858f998SYi Kong * cblas_ssyr2.c
4*1858f998SYi Kong * This program is a C interface to ssyr2.
5*1858f998SYi Kong * Written by Keita Teranishi
6*1858f998SYi Kong * 4/6/1998
7*1858f998SYi Kong *
8*1858f998SYi Kong */
9*1858f998SYi Kong
10*1858f998SYi Kong #include "cblas.h"
11*1858f998SYi Kong #include "cblas_f77.h"
cblas_ssyr2(const enum CBLAS_ORDER order,const enum CBLAS_UPLO Uplo,const int N,const float alpha,const float * X,const int incX,const float * Y,const int incY,float * A,const int lda)12*1858f998SYi Kong void cblas_ssyr2(const enum CBLAS_ORDER order, const enum CBLAS_UPLO Uplo,
13*1858f998SYi Kong const int N, const float alpha, const float *X,
14*1858f998SYi Kong const int incX, const float *Y, const int incY, float *A,
15*1858f998SYi Kong const int lda)
16*1858f998SYi Kong {
17*1858f998SYi Kong char UL;
18*1858f998SYi Kong #ifdef F77_CHAR
19*1858f998SYi Kong F77_CHAR F77_UL;
20*1858f998SYi Kong #else
21*1858f998SYi Kong #define F77_UL &UL
22*1858f998SYi Kong #endif
23*1858f998SYi Kong
24*1858f998SYi Kong #ifdef F77_INT
25*1858f998SYi Kong F77_INT F77_N=N, F77_incX=incX, F77_incY=incY, F77__lda=lda;
26*1858f998SYi Kong #else
27*1858f998SYi Kong #define F77_N N
28*1858f998SYi Kong #define F77_incX incX
29*1858f998SYi Kong #define F77_incY incY
30*1858f998SYi Kong #define F77_lda lda
31*1858f998SYi Kong #endif
32*1858f998SYi Kong
33*1858f998SYi Kong extern int CBLAS_CallFromC;
34*1858f998SYi Kong extern int RowMajorStrg;
35*1858f998SYi Kong RowMajorStrg = 0;
36*1858f998SYi Kong CBLAS_CallFromC = 1;
37*1858f998SYi Kong if (order == CblasColMajor)
38*1858f998SYi Kong {
39*1858f998SYi Kong if (Uplo == CblasLower) UL = 'L';
40*1858f998SYi Kong else if (Uplo == CblasUpper) UL = 'U';
41*1858f998SYi Kong else
42*1858f998SYi Kong {
43*1858f998SYi Kong cblas_xerbla(2, "cblas_ssyr2","Illegal Uplo setting, %d\n",Uplo );
44*1858f998SYi Kong CBLAS_CallFromC = 0;
45*1858f998SYi Kong RowMajorStrg = 0;
46*1858f998SYi Kong return;
47*1858f998SYi Kong }
48*1858f998SYi Kong #ifdef F77_CHAR
49*1858f998SYi Kong F77_UL = C2F_CHAR(&UL);
50*1858f998SYi Kong #endif
51*1858f998SYi Kong
52*1858f998SYi Kong F77_ssyr2(F77_UL, &F77_N, &alpha, X, &F77_incX, Y, &F77_incY, A,
53*1858f998SYi Kong &F77_lda);
54*1858f998SYi Kong
55*1858f998SYi Kong } else if (order == CblasRowMajor)
56*1858f998SYi Kong {
57*1858f998SYi Kong RowMajorStrg = 1;
58*1858f998SYi Kong if (Uplo == CblasLower) UL = 'U';
59*1858f998SYi Kong else if (Uplo == CblasUpper) UL = 'L';
60*1858f998SYi Kong else
61*1858f998SYi Kong {
62*1858f998SYi Kong cblas_xerbla(2, "cblas_ssyr2","Illegal Uplo setting, %d\n",Uplo );
63*1858f998SYi Kong CBLAS_CallFromC = 0;
64*1858f998SYi Kong RowMajorStrg = 0;
65*1858f998SYi Kong return;
66*1858f998SYi Kong }
67*1858f998SYi Kong #ifdef F77_CHAR
68*1858f998SYi Kong F77_UL = C2F_CHAR(&UL);
69*1858f998SYi Kong #endif
70*1858f998SYi Kong F77_ssyr2(F77_UL, &F77_N, &alpha, X, &F77_incX, Y, &F77_incY, A,
71*1858f998SYi Kong &F77_lda);
72*1858f998SYi Kong } else cblas_xerbla(1, "cblas_ssyr2", "Illegal Order setting, %d\n", order);
73*1858f998SYi Kong CBLAS_CallFromC = 0;
74*1858f998SYi Kong RowMajorStrg = 0;
75*1858f998SYi Kong return;
76*1858f998SYi Kong }
77