std::initializer_list<T>::begin

 

C++

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Utilities library

Language support Type support (basic types, RTTI) Library feature-test macros (C++20) Program utilities Variadic functions initializer_list (C++11) is_constant_evaluated (C++20) is_within_lifetime (C++26) source_location (C++20) Coroutine support (C++20) Contract support (C++26) Three-way comparison three_way_comparablethree_way_comparable_with (C++20)(C++20) strong_ordering (C++20) weak_ordering (C++20) partial_ordering (C++20) common_comparison_category (C++20) compare_three_way_result (C++20) compare_three_way (C++20) strong_order (C++20) weak_order (C++20) partial_order (C++20) compare_strong_order_fallback (C++20) compare_weak_order_fallback (C++20) compare_partial_order_fallback (C++20)   is_eqis_ltis_lteq (C++20)(C++20)(C++20)   is_neqis_gtis_gteq (C++20)(C++20)(C++20)

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std::initializer_list

Member functions

initializer_list::initializer_list

Capacity

initializer_list::size

Iterators

initializer_list::begin

initializer_list::end

Non-member functions

begin(std::initializer_list)

end(std::initializer_list)

 

const T* begin() const noexcept;		(since C++11) (constexpr since C++14)

Obtains a pointer to the first element in the initializer list.

If the initializer list is empty, the values of begin() and end() are unspecified, but will be identical.

Parameters

(none)

Return value

A pointer to the first element in the initializer list

Complexity

Constant

Example

Run this code

#include <initializer_list>
 
int main()
{
    static constexpr auto il = {42, 24};
    static_assert(*il.begin() == 0x2A);
    static_assert(il.begin()[1] == 030);
}

See also

end	returns a pointer to one past the last element (public member function)

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