C++ template argument with expression -

i having trouble c++. want able put expression inside template argument. here code:

#include <vector> using namespace std;  vector<  ((1>0) ? float : int) > abc() { }  int main(void){   return 0; } 

this gives me error:

main.cpp:11:14: error: template argument 1 invalid
main.cpp:11:14: error: template argument 2 invalid
main.cpp:11:15: error: expected unqualified-id before ‘{’ token

in end want able replace 1 , 0 whatever , float , int typename t , u. why think there 2 arguments? , how solve this?

(sorry if duplicate did have solutions)

use std::conditional:

#include <type_traits>  std::vector<std::conditional<(1 > 0), float, int>::type> abc() {}