Jade Lovelace
af99ede1fd
Found by edef's fuzzing. We::jade don't think this is security-relevant or likely to be mistreated by a compiler, but UB is bad. https://eel.is/c++draft/expr.static.cast#8 > If the enumeration type does not have a fixed underlying type, the value is unchanged if the original value is within the range of the enumeration values ([dcl.enum]), and otherwise, the behavior is undefined Notably, the range is defined as the smallest bitfield type that could hold all the values, not any real type which exists: https://eel.is/c++draft/dcl.enum#8. This is basically a footgun, and I'm writing a clang-tidy check to forbid casting to such types. But first I needed to write clang-tidy testing infrastructure: https://gerrit.lix.systems/c/lix/+/5493. Change-Id: Ieaaa0fe2a92fd9f24f60761e312741186a6a6964
Lix
Lix is an implementation of Nix, a powerful package management system for Linux and other Unix systems that makes package management reliable and reproducible.
Read more about us at https://lix.systems.
Installation
On Linux and macOS the easiest way to install Lix is to run the following shell command (as a user other than root):
$ curl -sSf -L https://install.lix.systems/lix | sh -s -- install
For systems that already have a Nix implementation installed, such as NixOS systems, read our install page
Building And Developing
See our Hacking guide in our manual for instruction on how to set up a development environment and build Lix from source.
Additional Resources
- The Lix reference manual:
- Our wiki
- Matrix - #space:lix.systems
License
Lix is released under LGPL-2.1-or-later.