Re:C++ Patterns: The Badge
by edflsafoiewq on Wednesday June 12, 2019 @04:24AM
(#20162741)
What's wrong with that? It seems like the easiest way to write code that works with either floats or doubles.
Eh... I have seen the same in Rust. People write tests with i32. i32 implements the Copy trait which means your can blindly clone it all over the place. When you try using some libraries with String or anything else they don't work.
> It seems like the easiest way to write code that works with either floats or doubles.
You never really need to do that. In the rare cases you need to, once every five years or so, it is trivial to change your code.
Not only is it needlessly complex, but untested generic code is a minefield of subtle future bugs ... "oh, the function is there and tested, so it should work" ... well, not in this particular combination of the completely unrestricted generic parameter set.
also, tons of "generic" numerical code with templates everywhere, where the only two possible instantiations are "float" and "double". Some people do really like to add useless complexity everywhere.