What does [](int) mean?

[Leo Mingo]

What does [](int) mean?

namespace Extended_STL {
// …
template<typename C, typename Predicate>
Iterator<C> find_if(C& c, Predicate pred)
{
return std::find_if(c.begin(),c.end(),pred);
}
// …
}
auto p = find_if(v, [](int x) { return x%2; } );  //  assuming v is a vector<int> 

Any answer would be appreciated :)

[coder777]

It is a so called lambda [local] function:

http://en.cppreference.com/w/cpp/language/lambda
http://stackoverflow.com/questions/7627098/what-is-a-lambda-expression-in-c11

[Leo Mingo]

Thanks a lot :)