74 		if (bn_wexpand(r,a->top+1) == NULL) return(0);  in BN_lshift1()
75 		r->top=a->top;  in BN_lshift1()
79 		if (bn_wexpand(r,a->top+1) == NULL) return(0);  in BN_lshift1()
84 	for (i=0; i<a->top; i++)  in BN_lshift1()
93 		r->top++;  in BN_lshift1()
112 	i = a->top;  in BN_rshift1()
130 	r->top=j;  in BN_rshift1()
146 	if (bn_wexpand(r,a->top+nw+1) == NULL) return(0);  in BN_lshift()
151 	t[a->top+nw]=0;  in BN_lshift()
153 		for (i=a->top-1; i>=0; i--)  in BN_lshift()
156 		for (i=a->top-1; i>=0; i--)  in BN_lshift()
165 	r->top=a->top+nw+1;  in BN_lshift()
183 	if (nw >= a->top || a->top == 0)  in BN_rshift()
202 	j=a->top-nw;  in BN_rshift()
203 	r->top=i;  in BN_rshift()