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38 #include <types/simple.h>
42 F77_FUNC(ssymv,SSYMV)(const char *uplo,
53 const char ch=toupper(*uplo);
54 int kx,ky,i,j,ix,iy,jx,jy;
61 float alpha = *alpha__;
64 if(n<=0 || incx==0 || incy==0)
70 kx = 1 - (n -1)*(incx);
75 ky = 1 - (n -1)*(incy);
77 if(fabs(beta-1.0)>GMX_FLOAT_EPS) {
79 if(fabs(beta)<GMX_FLOAT_MIN)
88 if(fabs(beta)<GMX_FLOAT_MIN)
101 if(fabs(alpha)<GMX_FLOAT_MIN)
105 if(incx==1 && incy==1) {
107 temp1 = alpha * x[j-1];
110 y[i-1] += temp1*a[(j-1)*(lda)+(i-1)];
111 temp2 += a[(j-1)*(lda)+(i-1)] * x[i-1];
113 y[j-1] += temp1*a[(j-1)*(lda)+(j-1)] + alpha *temp2;
120 temp1 = alpha * x[jx-1];
125 y[iy-1] += temp1 * a[(j-1)*(lda)+(i-1)];
126 temp2 += a[(j-1)*(lda)+(i-1)] * x[ix-1];
130 y[jy-1] += temp1*a[(j-1)*(lda)+(j-1)] + alpha*temp2;
137 if(incx==1 && incy==1) {
139 temp1 = alpha * x[j-1];
141 y[j-1] += temp1 * a[(j-1)*(lda)+(j-1)];
142 for(i=j+1;i<=n;i++) {
143 y[i-1] += temp1*a[(j-1)*(lda)+(i-1)];
144 temp2 += a[(j-1)*(lda)+(i-1)] * x[i-1];
146 y[j-1] += alpha *temp2;
153 temp1 = alpha * x[jx-1];
155 y[jy-1] += temp1 * a[(j-1)*(lda)+(j-1)];
158 for(i=j+1;i<=n;i++) {
161 y[iy-1] += temp1 * a[(j-1)*(lda)+(i-1)];
162 temp2 += a[(j-1)*(lda)+(i-1)] * x[ix-1];
164 y[jy-1] += alpha*temp2;