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#include <iostream>
#include <vector>
#include <algorithm>
using namespace std;
 
 
      struct C {
        int i_=0;
        C() {}
        C(int i) : i_( i ) {}
        C( const C& other) :i_(other.i_) {
          std::cout << "A copy construction was made." << i_<<std::endl;
        }
        C& operator=( const C& other) {
          i_= other.i_ ;
          std::cout << "A copy assign was made."<< i_<<std::endl;
          return *this;
        }
        C( C&& other ) noexcept :i_( std::move(other.i_)) {
          std::cout << "A move construction was made." << i_ << std::endl;
        }
        C& operator=( C&& other ) noexcept {
          i_ = std::move(other.i_);
          std::cout << "A move assign was made." << i_ << std::endl;
          return *this;
        }
      };
 
int main() {
    //auto vec2 = std::vector<C>{{1},{2},{3},{4},{5}};
    auto vec2 = std::vector<C>{std::initializer_list<int>{1,2,3,4,5}};
 
	cout << "reversing\n";
	std::reverse(vec2.begin(),vec2.end());
	return 0;
}

prog.cpp: In function 'int main()':
prog.cpp:31:69: error: no matching function for call to 'std::vector<C>::vector(<brace-enclosed initializer list>)'
     auto vec2 = std::vector<C>{std::initializer_list<int>{1,2,3,4,5}};
                                                                     ^
In file included from /usr/include/c++/5/vector:64:0,
                 from prog.cpp:2:
/usr/include/c++/5/bits/stl_vector.h:401:9: note: candidate: template<class _InputIterator, class> std::vector<_Tp, _Alloc>::vector(_InputIterator, _InputIterator, const allocator_type&)
         vector(_InputIterator __first, _InputIterator __last,
         ^
/usr/include/c++/5/bits/stl_vector.h:401:9: note:   template argument deduction/substitution failed:
prog.cpp:31:69: note:   candidate expects 3 arguments, 1 provided
     auto vec2 = std::vector<C>{std::initializer_list<int>{1,2,3,4,5}};
                                                                     ^
In file included from /usr/include/c++/5/vector:64:0,
                 from prog.cpp:2:
/usr/include/c++/5/bits/stl_vector.h:373:7: note: candidate: std::vector<_Tp, _Alloc>::vector(std::initializer_list<_Tp>, const allocator_type&) [with _Tp = C; _Alloc = std::allocator<C>; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<C>]
       vector(initializer_list<value_type> __l,
       ^
/usr/include/c++/5/bits/stl_vector.h:373:7: note:   no known conversion for argument 1 from 'std::initializer_list<int>' to 'std::initializer_list<C>'
/usr/include/c++/5/bits/stl_vector.h:348:7: note: candidate: std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>&&, const allocator_type&) [with _Tp = C; _Alloc = std::allocator<C>; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<C>]
       vector(vector&& __rv, const allocator_type& __m)
       ^
/usr/include/c++/5/bits/stl_vector.h:348:7: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/5/bits/stl_vector.h:339:7: note: candidate: std::vector<_Tp, _Alloc>::vector(const std::vector<_Tp, _Alloc>&, const allocator_type&) [with _Tp = C; _Alloc = std::allocator<C>; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<C>]
       vector(const vector& __x, const allocator_type& __a)
       ^
/usr/include/c++/5/bits/stl_vector.h:339:7: note:   candidate expects 2 arguments, 1 provided
/usr/include/c++/5/bits/stl_vector.h:335:7: note: candidate: std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>&&) [with _Tp = C; _Alloc = std::allocator<C>]
       vector(vector&& __x) noexcept
       ^
/usr/include/c++/5/bits/stl_vector.h:335:7: note:   no known conversion for argument 1 from 'std::initializer_list<int>' to 'std::vector<C>&&'
/usr/include/c++/5/bits/stl_vector.h:318:7: note: candidate: std::vector<_Tp, _Alloc>::vector(const std::vector<_Tp, _Alloc>&) [with _Tp = C; _Alloc = std::allocator<C>]
       vector(const vector& __x)
       ^
/usr/include/c++/5/bits/stl_vector.h:318:7: note:   no known conversion for argument 1 from 'std::initializer_list<int>' to 'const std::vector<C>&'
/usr/include/c++/5/bits/stl_vector.h:289:7: note: candidate: std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const value_type&, const allocator_type&) [with _Tp = C; _Alloc = std::allocator<C>; std::vector<_Tp, _Alloc>::size_type = unsigned int; std::vector<_Tp, _Alloc>::value_type = C; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<C>]
       vector(size_type __n, const value_type& __value,
       ^
/usr/include/c++/5/bits/stl_vector.h:289:7: note:   candidate expects 3 arguments, 1 provided
/usr/include/c++/5/bits/stl_vector.h:277:7: note: candidate: std::vector<_Tp, _Alloc>::vector(std::vector<_Tp, _Alloc>::size_type, const allocator_type&) [with _Tp = C; _Alloc = std::allocator<C>; std::vector<_Tp, _Alloc>::size_type = unsigned int; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<C>]
       vector(size_type __n, const allocator_type& __a = allocator_type())
       ^
/usr/include/c++/5/bits/stl_vector.h:277:7: note:   no known conversion for argument 1 from 'std::initializer_list<int>' to 'std::vector<C>::size_type {aka unsigned int}'
/usr/include/c++/5/bits/stl_vector.h:264:7: note: candidate: std::vector<_Tp, _Alloc>::vector(const allocator_type&) [with _Tp = C; _Alloc = std::allocator<C>; std::vector<_Tp, _Alloc>::allocator_type = std::allocator<C>]
       vector(const allocator_type& __a) _GLIBCXX_NOEXCEPT
       ^
/usr/include/c++/5/bits/stl_vector.h:264:7: note:   no known conversion for argument 1 from 'std::initializer_list<int>' to 'const allocator_type& {aka const std::allocator<C>&}'
/usr/include/c++/5/bits/stl_vector.h:253:7: note: candidate: std::vector<_Tp, _Alloc>::vector() [with _Tp = C; _Alloc = std::allocator<C>]
       vector()
       ^
/usr/include/c++/5/bits/stl_vector.h:253:7: note:   candidate expects 0 arguments, 1 provided

Standard output is empty