Use C++20.

[tez011]

Description

#2149 was reverted in #2320 and needs to be split into three changes:

• C++20 (this one!)
• UCRT64
• WGC

Type of Change

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [x] Dependency update (updates to dependencies)
• [ ] Documentation update (changes to documentation)
• [ ] Repository update (changes to repository files, e.g. .github/...)

Checklist

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have added or updated the in code docstring/documentation-blocks for new or existing methods/components

Branch Updates

LizardByte requires that branches be up-to-date before merging. This means that after any PR is merged, this branch must be updated before it can be merged. You must also Allow edits from maintainers.

• [x] I want maintainers to keep my branch updated

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 0% with 7 lines in your changes are missing coverage. Please review.

Project coverage is 6.05%. Comparing base (9288775) to head (bdf643e).

Additional details and impacted files

@@            Coverage Diff             @@
##           nightly   #2322      +/-   ##
==========================================
- Coverage     6.17%   6.05%   -0.13%     
==========================================
  Files           86      86              
  Lines        17542   17536       -6     
  Branches      8179    8184       +5     
==========================================
- Hits          1083    1061      -22     
- Misses       15362   15434      +72     
+ Partials      1097    1041      -56     

Flag	Coverage Δ
Linux	4.26% <0.00%> (+<0.01%)	:arrow_up:
Windows	2.04% <0.00%> (-0.01%)	:arrow_down:
macOS-12	?
macOS-13	7.84% <0.00%> (-0.09%)	:arrow_down:
macOS-14	8.16% <0.00%> (-0.09%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

Files	Coverage Δ
src/config.cpp	3.87% <ø> (-0.63%)	:arrow_down:
src/httpcommon.cpp	2.12% <ø> (ø)
src/nvhttp.cpp	0.92% <ø> (-0.16%)	:arrow_down:
src/platform/linux/cuda.cpp	1.65% <ø> (ø)
src/platform/linux/kmsgrab.cpp	2.30% <ø> (-0.01%)	:arrow_down:
src/rtsp.cpp	1.34% <ø> (-0.34%)	:arrow_down:
src/stream.h	0.00% <ø> (ø)
src/platform/linux/input.cpp	0.22% <0.00%> (ø)
src/platform/windows/input.cpp	0.39% <0.00%> (ø)
src/platform/windows/misc.cpp	1.07% <0.00%> (ø)
... and 1 more

... and 18 files with indirect coverage changes

[tez011]

AppImage build fails because Ubuntu 20.04 provides only Boost 1.71, which is incompatible with C++20. https://stackoverflow.com/questions/62723053/boost-log-expressions-v1-71-will-not-compile-under-c20

There is a more recent LTS version. Could we drop 20.04? Every other distribution that Sunshine makes builds for provides 1.74 or higher, even Debian 11.

[tez011]

What wonderful timing! CI passes on my fork.

https://github.com/tez011/Sunshine/actions/runs/8486729110

[tez011]

depends on #2327

[ReenigneArcher]

depends on #2327

Merged.

[tez011]

Is there anything else in this pull request I should handle before it's able to be merged?

[ReenigneArcher]

Just needs testing and approval. It will be after v0.23.0.

[tez011]

Hi! Just waiting for testing/approval results for this pull request. This first change is fairly small so I'm hoping there aren't too many obstacles!

[ReenigneArcher]

@tez011 sorry for the delays. We have a lot of open PRs. It might take a little bit before the other approvals come in. I think we are going to try to put out another patch to get a few things fixed before merging these bigger ones.

In the meantime, can you rebase your branch on top of the latest nightly?

[FrogTheFrog]

@ReenigneArcher LGTM