C++: error “explicit specialization in non-namespace scope”

Question

template
class Bimap {
public:
    class Data {
    private:
        template Data& set(T);
        template<>         


        

Answer 1

@Albert

I had a similar problem when I wanted to add a "trim-excess-capacity" to a custom made container. The std::vector swap trick and changing the declaration of the existing container were not valid options. So I've come up with this:

template  struct DeleteImp
{
    static void Trim(T* to, unsigned int count);
};

template  struct DeleteImp       
{
    static void Trim(T* to, unsigned int count) {}
};

template  struct DeleteImp        
{
    static void Trim(T* to, unsigned int count)
    {
        for(unsigned int i=0; i

used by my container like this:

DeleteImp::isPointer>::Trim(buf + length, truelength-length);

You may also want to check out this resource.