C++ keyword: struct

 

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Keywords

alignas (C++11) alignof (C++11) and and_eq asm auto (*) bitand bitor bool break case catch char char8_t (C++20) char16_t (C++11) char32_t (C++11) class compl concept (C++20) const consteval (C++20)     constexpr (C++11) constinit (C++20) const_cast continue co_await (C++20) co_return (C++20) co_yield (C++20) decltype (C++11) default delete	do double dynamic_cast else enum explicit export extern false float for friend goto if inline int long mutable namespace new noexcept (C++11)     not not_eq nullptr (C++11) operator or or_eq private protected public register	reinterpret_cast requires (C++20) return short signed sizeof (*) static static_assert (C++11) static_cast struct switch template this thread_local (C++11) throw true try typedef typeid typename union unsigned using virtual void volatile wchar_t while xor xor_eq
Identifiers with special meaning
final (C++11) import (C++20)	module (C++20) override (C++11)

 

Usage

• declaration of a compound type

declaration of a scoped enumeration type

(since C++11)

• If a function or a variable exists in scope with the name identical to the name of a non-union class type, struct can be prepended to the name for disambiguation, resulting in an elaborated type specifier.

Example

Run this code

struct Foo; // forward declaration of a struct
 
struct Bar  // definition of a struct
{
    Bar(int i) : i(i + i) {}
 
    int i;
};
 
enum struct Pub // scoped enum, since C++11
{
    b, d, p, q,
};
 
int main()
{
    Bar Bar(1);
    struct Bar Bar2(2); // elaborated type
}

See also

• class, union

final

(since C++11)

• enum