function template
<initializer_list>
std::begin (initializer_list)
template<class T> const T* begin (initializer_list<T> il) noexcept;
template<class T> constexpr const T* begin (initializer_list<T> il) noexcept;
Return iterator to beginning
Example
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// begin/end (initializer_list)
#include <iostream> // std::cout
#include <initializer_list> // std::initializer_list
template<class T> void print_list (std::initializer_list<T> il) {
for (const T* it=begin(il); it!=end(il); ++it) std::cout << ' ' << *it;
std::cout << '\n';
}
int main ()
{
print_list ({10,20,30});
return 0;
}
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Output:
Data races
The il object is accessed. Its contained elements are constant: Concurrently accessing them is always safe.
Exception safety
No-throw guarantee: this function never throws exceptions.