std::begin(std::initializer_list)

From cppreference.com
 
 
Utilities library
General utilities
Date and time
Function objects
Formatting library (C++20)
(C++11)
Relational operators (deprecated in C++20)
Integer comparison functions
(C++20)(C++20)(C++20)   
(C++20)
Swap and type operations
(C++14)
(C++11)
(C++11)
(C++11)
(C++17)
Common vocabulary types
(C++11)
(C++17)
(C++17)
(C++17)
(C++11)
(C++17)
(C++23)
Elementary string conversions
(C++17)
(C++17)
 
 
Defined in header <initializer_list>
template< class E >
const E* begin( std::initializer_list<E> il ) noexcept;
(since C++11)
(until C++14)
template< class E >
constexpr const E* begin( std::initializer_list<E> il ) noexcept;
(since C++14)

The overload of std::begin for initializer_list returns a pointer to the first element of il.

Parameters

il - an initializer_list

Return value

il.begin()

Example

#include <iostream>
#include <iterator>
#include <algorithm>
#include <initializer_list>
 
int main() 
{
    std::initializer_list il = {3, 1, 4, 1};
 
    std::copy(std::begin(il),
              std::end(il),
              std::ostream_iterator<int>(std::cout, "\n"));
}

Output:

3
1
4
1

See also

returns a pointer to the first element
(public member function)