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Standard library header <initializer_list> (C++11)

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Standard Library headers
Note: a slash '/' in a revision mark means that the header was deprecated and/or removed.
Language support
<source_location> (C++20)
<exception>
<initializer_list> (C++11)
<compare> (C++20)

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<concepts> (C++20)
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<system_error> (C++11)

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<memory_resource> (C++17)  
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<flat_set> (C++23)
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<iterator>
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<ranges> (C++20)
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<cfenv> (C++11)
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<chrono> (C++11)
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<stop_token> (C++20)
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C compatibility
<cstdbool> (C++11/17/20)  
<ccomplex> (C++11/17/20)
<ctgmath> (C++11/17/20)

<cstdalign> (C++11/17/20)

<ciso646> (until C++20)

 

This header is part of the utility library.

Classes

creates a temporary array in list-initialization and then references it
(class template) [edit]

Functions

overloads std::begin
(function template) [edit]
specializes std::end
(function template) [edit]

[edit] Synopsis

// all freestanding
namespace std {
  template<class E> class initializer_list {
  public:
    using value_type      = E;
    using reference       = const E&;
    using const_reference = const E&;
    using size_type       = size_t;
 
    using iterator        = const E*;
    using const_iterator  = const E*;
 
    constexpr initializer_list() noexcept;
 
    constexpr size_t size() const noexcept;     // number of elements
    constexpr const E* begin() const noexcept;  // first element
    constexpr const E* end() const noexcept;    // one past the last element
  };
 
  // initializer list range access
  template<class E> constexpr const E* begin(initializer_list<E> il) noexcept;
  template<class E> constexpr const E* end(initializer_list<E> il) noexcept;
}