How can i find out a parameter's type?

[see_moonlight]

How can i find out a parameter's type?
e.g.

char no1='a';

which function can i use to find out no1 is char type?

fun(no1)

reture the no1's type

[Narue]

#include <iostream>
#include <string>
#include <typeinfo>

using namespace std;

template <typename T>
string typeof ( T arg )
{
  return typeid ( arg ).name();
}

int main()
{
  char ch = 'a';

  cout<< typeof ( ch ) <<endl;
}