An algorithm or data structure may be applied to various types of data. There's various ways to handle this. Macro expansion, generics (basically equivalent of

An algorithm or data structure may be applied to various types of data. There's various ways to handle this. Macro expansion, generics (basically equivalent of macro expansion but as a language syntax), or losing types: void pointers, duck typing, interfaces. Go puts it's head in the sand and and handles the problem like it's 1970 with the "void pointer" way of thinking. That's fine if you're using a dynamic language (ie python, lisp) and firmly decided your trade offs with regards to types and performance. But if you elect to use a statically typed language, it would be nice to reap the benefits. Modern C++ is still the only way to go for serious software. Rust maybe in the future as the compilers improve. Go is a no no-go.