std::replace() usage. what is wrong ?

[sandeep Kanwal]

Hello,

Just started using some STL stuff and I am getting some compiler error
as below Please guide...

Error : illegal operands 'GraphicDataLin kInfo' == 'const
GraphicDataLink Info'
(point of instantiation: 'main()')
(instantiating: 'std::replace<s td::__wrap_iter ator<std::vecto r<GraphicDataLi nkInfo,
std::allocator< GraphicDataLink Info>>, GraphicDataLink Info *>,
GraphicDataLink Info>(std::__wr ap_iterator<std ::vector<Graphi cDataLinkInfo,
std::allocator< GraphicDataLink Info>>, GraphicDataLink Info *>,
std::__wrap_ite rator<std::vect or<GraphicDataL inkInfo,
std::allocator< GraphicDataLink Info>>, GraphicDataLink Info *>, const
GraphicDataLink Info &, const GraphicDataLink Info &)')
algorithm line 1270 if (*first == old_value)

#include <vector>
#include <algorithm>
#include <iostream>

class GraphicDataLink Info {
public:
GraphicDataLink Info() {}


};

int main()
{
using namespace std;
vector<GraphicD ataLinkInfo> test;

GraphicDataLink Info test1;

std::replace(te st.begin(), test.end(), test1, test1);

cout << "Hello World, this is CodeWarrior!" << endl;

return 0;
}

Thanks
ks

[Alexander Burchak]

Re: std::replace() usage. what is wrong ?

sandeep Kanwal wrote:
[color=blue]
> Hello,
>
> Just started using some STL stuff and I am getting some compiler error
> as below Please guide...
>
> Error : illegal operands 'GraphicDataLin kInfo' == 'const[/color]

Operator == is not defined for class GraphicDataLink Info.
You have to define it, something like this:

class GraphicDataLink Info {
public:
GraphicDataLink Info() {}

bool operator==(cons t class GraphicDataLink Info &gdli) {
return gdli.some_membe r == some_member;
}
};