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Created December 13, 2012 05:30
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Requirements of the Ruby Standard Specification

Patch Level

The spec defines behavior of each release versions like 1.9.2, 1.9.3, 2.0.0. It mustn't see patch level.

Implementation Defined Behavior

Implementations have some their specific features like objspace, RubyVM, TracePoint of MRI. The spec mustn't specify them.

Platform Dependent

Ruby has some platform dependent features. For example

  • Unix related things (String#crypt, fork, Etc.systmpdir, and so on)
  • Floating-point arithmetic
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