std::async with overloaded functions
c++, overloading, stdasync
Solution
Help the compiler resolve ambiguity telling which overload you want:
std::async(std::launch::async, static_cast<int(A::*)(int,double)>(&A::foo), &a, 2, 3.5);
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
or use lambda expression instead:
std::async(std::launch::async, [&a] { return a.foo(2, 3.5); });
Problem
Possible Duplicate: std::bind overload resolution Consider following C++ example ``` class A { public: int foo(int a, int b); int foo(int a, double b); }; int main() { A a; auto f = std::async(std::launch::async, &A::foo, &a, 2, 3.5); } ``` This gives 'std::async' : cannot deduce template argument as function argument is ambiguous. How do I resolve this ambiguity??