Performance & Memory Considerations
Understand the memory and performance implications of using std::any in C++17. Learn about dynamic memory allocations, small buffer optimization, and how different compilers affect the size and overhead of std::any objects.
We'll cover the following...
We'll cover the following...
std::any looks quite powerful, and you might use it to hold variables of variable types… but you
might ask what the price is for such flexibility.
The Main Issue: Extra Dynamic Memory Allocations.
std::variant and std::optional don’t require any extra memory allocations but this is because
they know which type (or types) will be ...