Pass generic type in c++ method as parameter -

i trying implement c++ method , want pass generic parameter in it. want assign parameter object's property. here example:

class myclass { public:     unsigned long long var1;     unsigned short var2;     signed short var3;  } 

now have global object of myclass in someotherclass , method says:

void someotherclass::updatemyclassvalue(int paramtype, <generic> value) {      switch(paramtype) {          case1:           objmyclass.var1 = value;          case2:           objmyclass.var2 = value;          case3:           objmyclass.var3 = value;      } }  

how pass such type, because if use fixed type e.g unsigned long long parameter type, won't able assign var2 & var3. don't want loose data, e.g signed data may have -ve value.

please me overcome situation, have no experience working in c++. not sure if can achieve using templete<> in c++, if yes how?

thanks

pass parameter pointer:

void someotherclass::updatemyclassvalue(int paramtype, void* pvalue) {  switch(paramtype) {      case1:       objmyclass.var1 = *(unsigned long long*)pvalue;      case2:       objmyclass.var2 = *(unsigned short)pvalue;      case3:       objmyclass.var3 = *(signed short)pvalue;  } 

this of course not type-safe , can lot of trouble when accidentally specify wrong paramtype. if use member template function instead, can let compiler checking you, example:

template<type t> void someotherclass::updatemyclassvalue<short int>(t value) {     objmyclass.var2 = value; } 

more elegant , type-safe.