Error with gcc but not with clang when compiling initializer list containing pointers to template function

Question

The following snippet compiles fine in vc++ and clang++, but fails on gcc (inc 9.2) unless i add an explicit cast. Which compiler is right here?

#include <initializer_list>  template<typename T> void Task(void) {}  int main() {     for(auto p_task: {&Task<int>}) {} // error //  for(auto p_task: {static_cast<void (*)(void)>(&Task<int>)}) {} // ok } 

<source>: In function 'int main()': <source>:8:33: error: unable to deduce 'std::initializer_list<auto>&&' from '{(& Task<int>)}'     8 |     for(auto p_task: {&Task<int>}) {} // error       |                                 ^ <source>:8:33: note:   couldn't deduce template parameter 'auto' 

online compiler

Answer 1

GCC was wrong, but not anymore! Thanks to @Barry reporting it, and Marek Polacek fixing it, the live demo can now be compiled with GCC trunk (future GCC 11).