differences between Partial Explicit Specializations

[sawer]

Hi
I am reading template chapter in c++.
We can specizlize a primary template both Partial and Explicit.
But what are the differences?Advantages and disadvantages.?

Thanks

[Mario F.]

A partial template is a version of a class template where some (not all) of the template parameters are specified. The advantages are obvious, since you may want to "fix" some of the parameters to certain data types.

template <class myClass1, class myClass2>
class some_template {
    /* ... */
};

// a partial specialization: fixes 2nd parameter as int. First parameter varies
template <class myClass1>
class some_template<myClass1, int> {
    /* ... */
};