Thread: help with implementation

After I wort this program and it runs really good, :
I got a question...
How could I impement new subtraction operator in order to write this:

string x = "Idontlikeprograming";
string y = x - "dont";
cout<< y; //the result is : " Ilikeprograming"

So fare I wrote this program:

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You can run it... I got the idea.. but I need to write it as shown up
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#include <iostream>
#include <string>

string del1(string sor, string dis){
string temp;
string::iterator sor_ptr = sor.begin();
while(sor_ptr <= sor.end()) {
bool found = false;
string::iterator dis_ptr = dis.begin();
for(; dis_ptr<=dis.end(); dis_ptr++) {
if (*sor_ptr == *dis_ptr){
found = true;
}// if
}// for
if (!found) temp+= *sor_ptr;
sor_ptr++;
}// While loop

return temp;

}// del1

string operator - (string & left, string & right){
// catenate two string values, forming a new string

string res= del1( left, right);
return res; // return result
// we can also writ here the body of del1 function
}


int main(){
/* string s1= " thisisnotfun";
string s2= s1 - "not";
cout<< s2<< endl; */
string source;
cout<< "Please inter the first string"<<endl;
getline(cin, source);
string dist;
cout<< "Please inter the second string"<<endl;
getline(cin,dist);
string edit1 = del1(source, dist);
cout << edit1 << endl;

return 0;
}

Thankx Guys...