Pass function template as argument to normal function to be specialised differently within the norma-CodePudding

I would like to do something to the following effect:

template <class A>
A doThings(A input) { /* do something */ }

void doTwoThings(ClassB inputB, ClassC inputC, template <class A> A(A) func) // This syntax is wrong but how to achieve this effect?
{
  std::cout << func<ClassB>(inputB);
  std::cout << func<ClassC>(inputC);
}

doTwoThings(5, "testStr", doThings);

Basically, I am trying to pass a function template as an argument to a normal function, and within that function, specialise the function template into two or more overloads and use them. Is there a way to do that in C ?

CodePudding user response：

Not sure if it match your need, but you might do

template <typename F>
void doTwoThings(ClassB inputB, ClassC inputC, F func)
{
  std::cout << func(inputB);
  std::cout << func(inputC);
}

doTwoThings(5, "testStr", [](const auto& input){ doThings(input); });