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method

_ipv4_compat?

Importance_0
Ruby latest stable (v2_5_5) - 0 notes - Class: IPAddr
_ipv4_compat?() private

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# File lib/ipaddr.rb, line 317
  def _ipv4_compat?
    if !ipv6? || (@addr >> 32) != 0
      return false
    end
    a = (@addr & IN4MASK)
    return a != 0 && a != 1
  end
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