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#include <vector>
 
template <typename T>
void sort(T &container) {}
 
template <typename F, typename T>
void sort_container(F sort_func, T container) {
    sort_func(container);
}
 
int main() {
    std::vector<int> x = {1,2,3};
    sort_container(sort, x);
}

prog.cpp: In function ‘int main()’:
prog.cpp:13:27: error: no matching function for call to ‘sort_container(<unresolved overloaded function type>, std::vector<int>&)’
prog.cpp:13:27: note: candidate is:
prog.cpp:7:6: note: template<class F, class T> void sort_container(F, T)
prog.cpp:7:6: note:   template argument deduction/substitution failed:
prog.cpp:13:27: note:   couldn't deduce template parameter ‘F’

Standard output is empty