I am not able to understand why I cannot be able to create global operator () method as like:
#include <iostream>
class A
{
public:
bool operator()(const A& a)
{
return true;
}
};
bool operator()(int a, int b)
{
return true;
}
int main ()
{
std::cout << "Hello\n";
}
When I compile the code I get below error:
$ c++ -std=c++14 a.cpp
a.cpp:11:29: error: 'bool operator()(int, int)' must be a nonstatic member function
bool operator()(int a, int b)
^
If I change the operator to any like + or - I still get the same error? Why we cannot defined global operator method?
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