harpiee

Smart pointers for what?

I don't use any dynamically allocated memory in my firmware projects.

I do sometimes use statically allocated pools for things like packet buffers and allocate chunks out of them, but their lifetimes are not scope based, so automatic call of constructors/destructors would not be of any help.

I do it mainly as a form of namespacing and aid in readability.

  do_thing(foo); // foo is variable

  do_thing(FOO); // FOO is constant (i.e this call should always do the same thing)

  foo = FOO; // I wanna name a variable the same as a constant

With unsigned you can actually check for overflow yourself very easily

  z=x+y; if(z < x || z < y) // overflow

  size = x + y;
  // or
  size = x - y

  if(size < bound) // good to go