//gsoap ns service name:	calc
//gsoap ns service style:       document
//gsoap ns service encoding:    literal
//gsoap ns service namespace:	http://192.168.1.3/calc.wsdl
//gsoap ns service location:	http://192.168.1.3/calc.exe
//gsoap ns schema 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);
int ns__pow(double a, double b, double *result);
int ns__repeat(char *repeat, unsigned int times, char **result);