String empty,length

 

//string empty

//string length

#include<iostream.h>

#include<string>

void test(const string & st)

{

if(st.empty())cout<<"Empty"<<endl;

else

cout<<"length="<<st.length()<<endl;

}

int main(int argc, char *argv[])

{

string t;

test(t);

t="alaska fox";

test(t);

return 0;

}