I am trying to use BitSet
data structure, but it gives me a compile error saying it was not able to find the BitSet.
Has std::collections::BitSet
been released in the stable version?
use std::collections::BitSet;
fn main() {
println!("Hello, world!");
}
Produces the error:
error[E0432]: unresolved import `std::collections::BitSet`
--> src/main.rs:1:5
|
1 | use std::collections::BitSet;
| ^^^^^^^^^^^^^^^^^^^^^^^^ no `BitSet` in `collections`
It seems that BitSet
existed in Rust 1.3.0, which is very old, but was already deprecated at that time and finally removed by this commit.
Instead, you can use bit-set
crate, as suggested by the deprecation message above. There's also documentation.
extern crate bit_set;
use bit_set::BitSet;
fn main() {
let mut s = BitSet::new();
s.insert(32);
s.insert(37);
s.insert(3);
println!("s = {:?}", s);
}
You'll have to add a dependency to the bit-set
crate in some way. It's easy if you're using Cargo:
[package]
name = "foo"
version = "0.1.0"
authors = ["Foo Bar <[email protected]>"]
[dependencies]
bit-set = "0.4.0" # Add this line
If you're using the official Rust Playground, you can automatically use bit-set
, because it is one of the top 100 downloaded crates or a dependency of one of them.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With