std::initializer_list<T>::begin
const T* begin() const noexcept; |
(since C++11) (constexpr since C++14) |
Obtains a pointer to the first element in the initializer_list. Equivalent to return data();.
If the initializer list is empty, the values of begin() and end() are unspecified, but will be identical.
Return value
A pointer to the first element in the initializer list
Complexity
Constant
Example
#include <algorithm>
#include <initializer_list>
#include <iostream>
#include <iterator>
int main()
{
static constexpr auto il = {42, 24};
static_assert(*il.begin() == 0x2A);
static_assert(il.begin()[1] == 030);
std::initializer_list ϕ = {'1', '.', '6', '1', '8', '0'};
std::copy(ϕ.begin(),
ϕ.end(),
std::ostream_iterator<char>(std::cout, ""));
std::cout << '\n';
}
Output:
1.6180
See also
|
(C++11) | returns a pointer to one past the last element (public member function) |
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