2bba267120
If Less(a, b) returns true when a is less than b, the correct way to check if a is greater than b is to use Less(b, a). It is wrong to use !Less(a, b) because that checks if a is greater than *or equal to* b. 1. The decreasingDistance function in Example_sortKeys makes this mistake. Fix it. 2. The documentation of multiSorter.Less says it loops along the less functions until it finds a comparison "that is either Less or !Less". This is nonsense, because (Less(a, b) or !Less(a, b)) is always true. Fix the documentation to say that it finds a comparison "that discriminates between the two items (one is less than the other)". The implementation already does this correctly. Change-Id: If52b79f68e4fdb0d1095edf29bdecdf154a61b8d Reviewed-on: https://go-review.googlesource.com/57752 Reviewed-by: Ian Lance Taylor <iant@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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The Go Programming Language
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