What does "cv-unqualified" mean in C++?
c++, c++-faq
Solution
There are fundamental types and compound types. Fundamental types are the arithmetic types, `void`, and `std::nullptr_t`. Compound types are arrays, functions, pointers, references, classes, unions, enumerations, and pointers to non-static members.
A cv-unqualified type is any of those types.
For any cv-unqualified type, there are three corresponding cv-qualified types:
- const-qualified - with the `const` cv-qualifier
- volatile-qualified - with the `volatile` cv-qualifier
- const-volatile-qualified - with both the `const` and `volatile` cv-qualifiers
Note, however, that cv-qualifiers applied to an array type actually apply to its elements.
The cv-qualified and cv-unqualified types are distinct. That is `int` is a distinct type from `const int`.
Problem
As from subject. I saw this terminology in a question I recently asked, and apparently it's a well established term, but I am not able to find anything on Stack Overflow.