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README: add Supported Platforms section - #534

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@leerho

@leerho leerho commented Oct 1, 2026

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Adds a short Supported Platforms section to the README:

  • All Apache DataSketches libraries support little-endian platforms only. The serialized sketch formats, and algorithms such as the HLL, CPC and Theta compression, assume little-endian byte order. Big-endian platforms are not supported.
  • This library is tested on Linux, macOS and Windows, which matches the CI matrix: Ubuntu 24.04 with GCC 9–15, macOS 15 with Clang, and Windows 2025 with MSVC.

The little-endian requirement has always held but was never written down. The same section will be added to the other language READMEs and the website.

🤖 Generated with Claude Code

State that DataSketches supports little-endian platforms only, and that
this library is tested on Linux, macOS and Windows.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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Coverage Report for CI Build 36931722317

Coverage increased (+0.009%) to 82.436%

Details

  • Coverage increased (+0.009%) from the base build.
  • Patch coverage: No coverable lines changed in this PR.
  • No coverage regressions found.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

No coverage regressions found.


Coverage Stats

Coverage Status
Relevant Lines: 21561
Covered Lines: 17774
Line Coverage: 82.44%
Coverage Strength: 1364035.2 hits per line

💛 - Coveralls

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