range(4rheolef)

📦
version 7.2 · 4 versions
, in debian trixie, ubuntu noble, ubuntu questing

✨ range(4rheolef) ✨

okay bestie, buckle up, this is the range page from the rheolef manual (that's rheolef-7.2, the whole manual, hi hello) and it's genuinely such a lil cutie of a class, you're gonna be obsessed 💖

🌸 NAME 🌸

range — index range for a subset of a vector, no cap 🎀

💅 DESCRIPTION 💅

so like, this class represents a range of index, right? and what it's for is addressing a subset of the vec(4) container. that's it. that's the whole vibe. it's giving "here's the slice of the vector I want, and I'm not gonna make it complicated" ✨

🦋 EXAMPLE 🦋

literally the whole thing in four lines, periodt:

vec<double> x (100, 3.14);
vec<double> y = x(range(0,50));
dout << y << endl;

like, you make a vec<double> x with 100 entries all chillin' at 3.14, then you grab a subset with x(range(0,50)) and that lands in y, and then you dout << y << endl and go live your life. iconic behaviour fr fr 🌈

👑 IMPLEMENTATION 👑

this documentation has been generated from file linalg/lib/range.h — yes, that's the receipts, we don't gatekeep 🫶

struct range {
  using size_type = size_t;
  range (size_type start=0, size_type stop=0);
  size_type start() const;
  size_type size() const;
  static range all();

};

look at that struct. size_type is aliased to size_t (a whole mood). the constructor takes start=0 and stop=0 as defaults, so you can just vibe with range() if you want. then you've got start() returning a size_type, size() returning a size_type, and a static all() that — iykyk — gives you everything. 💅

🎀 AUTHOR 🎀

Pierre Saramito <Pierre.Saramito@imag.fr> — the author, the main character, we love them 💜

Copyright (C) 2000-2018 Pierre Saramito <Pierre.Saramito@imag.fr>

GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.

this is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. ⚠️ like, that part is serious bestie, no cap, the warranty is genuinely not there.

okay that's the whole page 🍓 and a lil sign-off for you: this came out of rheolef, Version 7.2, and it lives at range(4rheolef) in the manual 💖 stay slaying, go subset some vectors ✨🧚

📦 where this page comes from