In file included from main.cpp:13:0:
initialize_vector.h: In function 'std::vector<_Tp> initialize_vector(T, int)':
initialize_vector.h:6:28: error: expected primary-expression before 'out'
     return (std::vector<T> out(s, value));
                            ^~~
initialize_vector.h:6:28: error: expected ')' before 'out'
main.cpp: In function 'int main()':
main.cpp:31:49: error: no matching function for call to 'initialize_vector<int>(int, int, int)'
         auto a = initialize_vector<int>(-1, 2, 3);
                                                 ^
In file included from main.cpp:13:0:
initialize_vector.h:5:16: note: candidate: template<class T, class ... D> std::vector<_Tp> initialize_vector(T, int)
 std::vector<T> initialize_vector(T value, int s) {
                ^~~~~~~~~~~~~~~~~
initialize_vector.h:5:16: note:   template argument deduction/substitution failed:
main.cpp:31:49: note:   candidate expects 2 arguments, 3 provided
         auto a = initialize_vector<int>(-1, 2, 3);
                                                 ^
main.cpp:37:63: error: no matching function for call to 'initialize_vector<std::__cxx11::string>(const char [4], int, int, int)'
         auto a = initialize_vector<std::string>("aba", 3, 4, 2);
                                                               ^
In file included from main.cpp:13:0:
initialize_vector.h:5:16: note: candidate: template<class T, class ... D> std::vector<_Tp> initialize_vector(T, int)
 std::vector<T> initialize_vector(T value, int s) {
                ^~~~~~~~~~~~~~~~~
initialize_vector.h:5:16: note:   template argument deduction/substitution failed:
main.cpp:37:63: note:   candidate expects 2 arguments, 4 provided
         auto a = initialize_vector<std::string>("aba", 3, 4, 2);
                                                               ^
main.cpp:52:48: error: no matching function for call to 'initialize_vector<int>(int&, int, int)'
         auto a = initialize_vector<int>(v, 2, 1);
                                                ^
In file included from main.cpp:13:0:
initialize_vector.h:5:16: note: candidate: template<class T, class ... D> std::vector<_Tp> initialize_vector(T, int)
 std::vector<T> initialize_vector(T value, int s) {
                ^~~~~~~~~~~~~~~~~
initialize_vector.h:5:16: note:   template argument deduction/substitution failed:
main.cpp:52:48: note:   candidate expects 2 arguments, 3 provided
         auto a = initialize_vector<int>(v, 2, 1);
                                                ^