How not to check array size in C++
How not to check array size in C++
How often do you see the sizeof(array)/sizeof(array[0]) statement used to get the size of an array? I really hope it′s not too often, because it′s 2024 already. In this note, we′ll talk about the...
Why no mention of std::array?
Why no mention of std::array?
I think this was focused on maintaining code. Replacing C-style arrays with std::array can be a daunting task, depending on how the project is structured.
Tbh if you aren’t already using someone else’s array implementation that includes length information, just write your own simple wrapper e.g.
struct MyArrayWrapper { int *data; int length; }
At that point I would just use std::span if you can, then you also get the standard container/iterator interfaces for free.
The article did mention that that's what you'd probably have to do.
I have only one pointer (for example, if you created an array using new)
In most cases, it's necessary to rewrite the program a bit and add an array size passing. Sadly, that's how it works.