ADL + unscoped call to free = ambiguous overload

[Ryan-rsm-McKenzie]

The unscoped call to free here can find unwanted overloads of the function and throw compilation errors. Here's an example:

#include <cstdlib>

#include "robin_hood.h"

namespace foo
{
    void free(void* ptr) { std::free(ptr); }
    enum bar {};
}

int main()
{
    robin_hood::unordered_set<foo::bar> error;
    return 0;
}

Resolving the scope like ::free should solve it.

[martinus]

Thanks for finding this, should be fixed in the latest commits (no release yet though)