From cfae41ff36d833719b073d1eec5f0fd535ca9e61 Mon Sep 17 00:00:00 2001 From: Rob Pike Date: Thu, 25 Sep 2014 10:52:02 -0700 Subject: [PATCH] time: make it clear that time.Time values do not compare with == LGTM=bradfitz, josharian, adg, rsc R=golang-codereviews, bradfitz, josharian, rsc, adg CC=golang-codereviews https://golang.org/cl/141340043 --- src/time/time.go | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/time/time.go b/src/time/time.go index 4f76d79ee5..0300e846a4 100644 --- a/src/time/time.go +++ b/src/time/time.go @@ -31,6 +31,11 @@ import "errors" // change the instant in time being denoted and therefore does not affect the // computations described in earlier paragraphs. // +// Note that the Go == operator compares not just the time instant but also the +// Location. Therefore, Time values should not be used as map or database keys +// without first guaranteeing that the identical Location has been set for all +// values, which can be achieved through use of the UTC or Local method. +// type Time struct { // sec gives the number of seconds elapsed since // January 1, year 1 00:00:00 UTC. -- 2.50.0