>recommends to avoid [...] template metaprogramming,
Fyi...the Google style guide doesn't ban generics/templates. It's discouraging the "template metaprogramming" which is a technique beyond parameterized types (generics) ... e.g. using recursion in Turing Complete template programming to calculate compile-time values.
It uses generic type parameters. If you ask the author if the library would have been easier and "less complex" to write if generics language feature were removed from C++, I think we'd be certain the author would say "no."
Even without asking the author, if anyone believes the library is suffers "simplicity debt" because it uses generics, they can fork the code, rewrite it, and then prove to skeptics that the hashing library was much clearer and more maintainable without generics.
Fyi...the Google style guide doesn't ban generics/templates. It's discouraging the "template metaprogramming" which is a technique beyond parameterized types (generics) ... e.g. using recursion in Turing Complete template programming to calculate compile-time values.
If we're talking about just generics, here's example code from Google Inc's sparsehash: https://github.com/sparsehash/sparsehash/tree/master/src/spa...
It uses generic type parameters. If you ask the author if the library would have been easier and "less complex" to write if generics language feature were removed from C++, I think we'd be certain the author would say "no."
Even without asking the author, if anyone believes the library is suffers "simplicity debt" because it uses generics, they can fork the code, rewrite it, and then prove to skeptics that the hashing library was much clearer and more maintainable without generics.