Facing transpilation issues around Atomic

[mahajpuneet]

Hi team,

Trying to use c2rust, but noticing these issues:

--> /usr/lib/llvm-11/lib/clang/11.0.1/include/stdatomic.h:107:1 [-Wclang-ast] thread 'main' panicked at 'Unsupported implicit cast: AtomicToNonAtomic', /home/debian/.cargo/registry/src/github.com-1ecc6299db9ec823/c2rust-transpile-0.17.0/src/c_ast/conversion.rs:165:14

Could you please advise? Thanks in advance

[thedataking]

C11 atomics are not fully supported so what you are seeing is expected. We do have a highly experimental branch that you can try out #814 which may translate the input that triggers the above error. Since the branch is WIP, please audit the output Rust carefully and expect errors.

[mahajpuneet]

Sure @thedataking, thank you. Sorry, is this branch likely to be merged perhaps in a month or two? Can wait

[thedataking]

Adding support for C11 atomics is not high priority so unfortunately, I do not have a timeframe for merging it in. If you are translating an open source project, let me know which one; I can try to see if the branch handles all items you need.

[mahajpuneet]

ah yes trying to see for a modified code base of Redis (added some changes on top of my own to work better with c2rust)

I did try the branch as you suggested. Got this also(just checking if this too will come into the branch as and when it gets merged):

error: Failed to translate config: Unsupported default initializer: Atomic(CQualTypeId { qualifiers: Qualifiers { is_const: false, is_restrict: false, is_volatile: false }, ctype: CTypeId(15) })

Previous error did get fixed and a lot more files got transpiled this time, so thank you !!