C++ keyword: class
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Keywords
(C++11)
(C++11)
(*)
(C++20)
(C++11)
(C++11)
class
(C++20)
(C++20)
(C++11)
(C++20)
(C++26)
(C++20)
(C++20)
(C++20)
(C++11)
(C++11)
(C++11)
Identifiers with special meaning
[edit] Usage
(since C++11)
- In a template declaration, class can be used to introduce type template parameters and template template parameters
- If a function or a variable exists in scope with the name identical to the name of a class type, class can be prepended to the name for disambiguation, resulting in an elaborated type specifier.
[edit] Example
Run this code
class Foo; // forward declaration of a class class Bar // definition of a class { public: Bar(int i) : m_i(i) {} private: int m_i; }; template<class T> // template argument void qux() { T t; } enum class Pub // scoped enum, since C++11 { b, d, p, q }; int main() { Bar Bar(1); // variable Bar hides type Bar Bar Bar2(2); // compiler error class Bar Bar3(3); // elaborated type }
[edit] See also
(since C++11)