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CONTRIBUTING.md

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Contribute to the card.io core vision library.

Pull requests are welcome!

General Guidelines

  • Code style. Please follow local code style. Ask if you're unsure.
  • No warnings. All generated code must compile without warnings. All generated code must pass the XCode static analyzer.
  • Cross-platform. This module is used by both iOS & Android. With the exception of some minimum wrappers, platform specific code SHOULD generally live with that platform's SDK. Anything platform specific MUST be guarded by appropriate compile macros.
  • Architecture support. The library should support armv7, armv7s, arm64, i386 and x86_64. armv7 must support the lack of NEON vector instructions. (It is acceptable & encouraged to use NEON provided an alternative is available. Selection SHOULD be controlled by a compile time macro.)
  • ARC agnostic. No code that depends on the presence or absence of ARC should appear in public header files.
  • No logging in Release builds. Always use one of the 'dmz_*_log()'' macros provided in 'dmz_debug.h'
  • Testing. Compile for both iOS and Android, wherever possible. Test on at least one physical device.