Documentation ¶
Overview ¶
Package cmpver implements a variant of debian version number comparison.
A version is a string consisting of alternating non-numeric and numeric fields. When comparing two versions, each one is broken down into its respective fields, and the fields are compared pairwise. The comparison is lexicographic for non-numeric fields, numeric for numeric fields. The first non-equal field pair determines the ordering of the two versions.
This comparison scheme is a simplified version of Debian's version number comparisons. Debian differs in a few details of lexicographical field comparison, where certain characters have special meaning and ordering. We don't need that, because Tailscale version numbers don't need it.
Index ¶
Constants ¶
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Variables ¶
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Functions ¶
func Compare ¶
Compare returns an integer comparing two strings as version numbers. The result will be -1, 0, or 1 representing the sign of v1 - v2:
Compare(v1, v2) < 0 if v1 < v2 == 0 if v1 == v2 > 0 if v1 > v2
Types ¶
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