STL generate algorithm and functions

[jgoulden]

I'm new to the STL and am trying to learn from (dear Lord) the web...at any rate I want to use generate to populate a vector with numbers within a range. Tutorials seem to lead me to code like this, but the compiler always coughs up a "term does not evaluate to a function" error at the function in the generate statement. Can someone point me in the right direction?

#include<vector>
#include<algorithm>
#include<iostream>
#include<cstdlib>
using namespace std;
 
class randomInt{
public:
   randomInt(int i, int j) : min(i), max(j) {}
   int operator()(int min, int max){
     return rand()%(max-min)+min;
   }
private:
   int min, max;
};
 
int main(){
   vector<int> v(50);
   randomInt ri(10,50);
   generate(v.begin(), v.end(), ri);
   for(vector<int>::iterator i = v.begin(); i != v.end(); ++i){
      cout << *i << " ";
   }
return EXIT_SUCCESS;
}

[Banfa]

The problem is that you have defined the function call operator has having 2 parameters but generate expects it to have none. Further more because you use a class with instance data those parameters are not required; try:

   int operator()(){
     return rand()%(max-min)+min;
   }
 

[PeterSullivan]

Yes I think this could help define call operator perfect class.