[rustc.git] / src / doc / nomicon / src / arc.md

# Implementing Arc

In this section, we'll be implementing a simpler version of `std::sync::Arc`.
Similarly to [the implementation of `Vec` we made earlier](vec.md), we won't be
taking advantage of as many optimizations, intrinsics, or unstable code as the
standard library may.

This implementation is loosely based on the standard library's implementation
(technically taken from `alloc::sync` in 1.49, as that's where it's actually
implemented), but it will not support weak references at the moment as they
make the implementation slightly more complex.

Please note that this section is very work-in-progress at the moment.
Commit	Line	Data
5869c6ff XL	1	# Implementing Arc
	2
	3	In this section, we'll be implementing a simpler version of `std::sync::Arc`.
	4	Similarly to [the implementation of `Vec` we made earlier](vec.md), we won't be
	5	taking advantage of as many optimizations, intrinsics, or unstable code as the
	6	standard library may.
	7
	8	This implementation is loosely based on the standard library's implementation
	9	(technically taken from `alloc::sync` in 1.49, as that's where it's actually
	10	implemented), but it will not support weak references at the moment as they
	11	make the implementation slightly more complex.
	12
	13	Please note that this section is very work-in-progress at the moment.