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'
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).