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...
  • WolfLink@lemmy.ml
    51·
    2 years ago

    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; }

    • clyne@discuss.tchncs.de
      2·
      2 years ago

      At that point I would just use std::span if you can, then you also get the standard container/iterator interfaces for free.

    • xep@fedia.io
      1·
      2 years ago

      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.