Why is sort working for structure but not for int vector

Asked Sep 04 '19 at 13:55

Active Sep 04 '19 at 18:27

Viewed 83 times

I read an article in geekforgeeks for sorting in a particular order (vector). This is the code that I got from the site.

You can see the output is correct below in the image. This is my code now

#include<bits/stdc++.h>
using namespace std;

bool max(int a, int b)
{
    return (a < b);
}
int main()
{
    vector<int> v;
    cout<<"Current size is "<<v.size()<<"\nPutting elements now\n";     
    for(int i=0;i<10;i++) 
        v.push_back(rand()%1000);                                            
    //sort(v.begin(),v.end(),greater<int>());                                
    sort(v.begin(),v.end(),max);
    for(int i=0;i<v.size();i++) 
        cout<<v[i]<<" ";
     return 0;
}

I get this error

 error: no matching function for call to 'sort(std::vector<int>::iterator, std::vector<int>::iterator, <unresolved overloaded function type>)'
     sort(v.begin(),v.end(),max);

PS: I know about using greater <int> ()

Thanks in advance :)

asked Sep 04 '19 at 13:55

Rahul Choudhary

2

[Images of code](https://meta.stackoverflow.com/a/285557/7359094) are discouraged. Please provide the code as text directly in the question. – François Andrieux Sep 04 '19 at 13:57
1

With `using namespace std;` the name `max` might mean your `::max` or `std::max`. – François Andrieux Sep 04 '19 at 13:58
1

This is why you should never use `using namespace std` – NathanOliver Sep 04 '19 at 13:59

Why is sort working for structure but not for int vector

0 Answers0