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C++ keyword: class

From cppreference.com
< cpp‎ | keyword
 
 
C++ language
General topics
Conditional execution statements
Iteration statements (loops)
Jump statements
Exceptions
Namespaces
Types
Specifiers
decltype (C++11)
auto (C++11)
constexpr (C++11)
consteval (C++20)
constinit (C++20)
Character - String - nullptr (C++11)
User-defined (C++11)
Utilities
Attributes (C++11)
Types
Casts
Memory allocation
Class-specific function properties
Special member functions
Miscellaneous
 
Keywords
Identifiers with special meaning
(C++11)
(C++20)
(C++20)
(C++11)
(C++26)
(C++26)
 

[edit] Usage

[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)
(since C++20)
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