#include <iostream>
#include <array>
struct S {
std::array<int, 5> a;
S() : a { 1, 2, 3 , 4, 5 } { }
};
int main() {
S s;
std::cout << s.a[0] << std::endl;
}
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prog.cpp: In constructor 'S::S()':
prog.cpp:7:30: error: could not convert '{1, 2, 3, 4, 5}' to 'std::array<int, 5u>'