Changed cidrhost() to accept negative host number #13765
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apparentlymart
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Apr 19, 2017
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Changed the interpolation function
cidrhost().The expected behavior, which is also demonstrated in the test code, is as follows:
Given CIDR range and a negative number, get IP address from the end of the range.
Say the CIDR range is
168.192.0.0/24.-1will gives you168.192.0.255(the last address), or-256will168.192.0.0. In this sense, giving-257will be an error because it's out of the range.C.f.; apparentlymart/go-cidr#2