//gsoap ns service name:	Service
//gsoap ns service style:	rpc
//gsoap ns service encoding:	encoded
//gsoap ns service location:	http://www.cs.fsu.edu/~engelen/calc.cgi
//gsoap ns service namespace:	urn:calc

int ns__add(double a, double b, double *result);
int ns__sub(double a, double b, double *result);
int ns__mul(double a, double b, double *result);
int ns__div(double a, double b, double *result);