Put initial CUDA support on Master

[mborland]

This is exercised upstream at int128

[cppalliance-bot]

An automated preview of the documentation is available at https://298.charconv.prtest.cppalliance.org/libs/charconv/doc/html/index.html

If more commits are pushed to the pull request, the docs will rebuild at the same URL.

2026-04-27 18:41:01 UTC

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.87%. Comparing base (f3d021b) to head (78d2d26).
⚠️ Report is 21 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #298      +/-   ##
==========================================
+ Coverage   94.85%   94.87%   +0.01%     
==========================================
  Files          74       75       +1     
  Lines        9007     9039      +32     
==========================================
+ Hits         8544     8576      +32     
  Misses        463      463              

Files with missing lines	Coverage Δ
include/boost/charconv/detail/apply_sign.hpp	100.00% <100.00%> (ø)
include/boost/charconv/detail/dragonbox/floff.hpp	87.17% <100.00%> (ø)
.../boost/charconv/detail/from_chars_integer_impl.hpp	100.00% <100.00%> (ø)
...nclude/boost/charconv/detail/from_chars_result.hpp	100.00% <100.00%> (ø)
...ude/boost/charconv/detail/integer_search_trees.hpp	99.25% <100.00%> (ø)
include/boost/charconv/detail/memcpy.hpp	50.00% <ø> (ø)
...lude/boost/charconv/detail/ryu/ryu_generic_128.hpp	92.75% <100.00%> (+0.02%)	⬆️
...de/boost/charconv/detail/to_chars_integer_impl.hpp	96.89% <100.00%> (ø)
include/boost/charconv/detail/to_chars_result.hpp	100.00% <100.00%> (ø)
include/boost/charconv/from_chars.hpp	100.00% <100.00%> (ø)
... and 2 more

---

Continue to review full report in Codecov by Sentry.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update f3d021b...78d2d26. Read the comment docs.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.