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go/api
Akhil Indurti d57ebde91f math: add Compare and Compare32
This change introduces the Compare and Compare32 functions
based on the total-ordering predicate in IEEE-754, section 5.10.

In particular,
* -NaN is ordered before any other value
* +NaN is ordered after any other value
* -0 is ordered before +0
* All other values are ordered the usual way

name         time/op
Compare-8    0.24ns ± 1%
Compare32-8  0.24ns ± 0%

Fixes #56491.

Change-Id: I9444fbfefe26741794c4436a26d403b8da97bdaf
Reviewed-on: https://go-review.googlesource.com/c/go/+/459435
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
2023-02-09 20:47:48 +00:00
..
next math: add Compare and Compare32 2023-02-09 20:47:48 +00:00
except.txt all: upgrade Unicode from 13.0.0 to 15.0.0 2023-02-06 04:29:53 +00:00
go1.1.txt strconv: quote rune 007F as \x7f, not \u007f 2022-03-31 20:37:15 +00:00
go1.2.txt
go1.3.txt
go1.4.txt
go1.5.txt
go1.6.txt
go1.7.txt
go1.8.txt
go1.9.txt
go1.10.txt
go1.11.txt
go1.12.txt
go1.13.txt
go1.14.txt
go1.15.txt
go1.16.txt cmd/api: track darwin arm64 port 2022-12-02 16:30:41 +00:00
go1.17.txt cmd/api: track darwin arm64 port 2022-12-02 16:30:41 +00:00
go1.18.txt cmd/api: track deprecations 2022-12-02 16:29:41 +00:00
go1.19.txt cmd/api: track deprecations 2022-12-02 16:29:41 +00:00
go1.20.txt api: promote next to go1.20 2022-12-07 16:56:12 +00:00
go1.txt
README cmd/api: require proposal # for new API features 2022-03-14 21:43:16 +00:00

Files in this directory are data for Go's API checker ("go tool api", in src/cmd/api).

Each file is a list of API features, one per line.

go1.txt (and similarly named files) are frozen once a version has been
shipped. Each file adds new lines but does not remove any.

except.txt lists features that may disappear without breaking true
compatibility.

Starting with go1.19.txt, each API feature line must end in "#nnnnn"
giving the GitHub issue number of the proposal issue that accepted
the new API. This helps with our end-of-cycle audit of new APIs.
The same requirement applies to next/* (described below), which will
become a go1.XX.txt for XX >= 19.

The next/ directory contains the only files intended to be mutated.
Each file in that directory contains a list of features that may be added
to the next release of Go. The files in this directory only affect the
warning output from the go api tool. Each file should be named
nnnnn.txt, after the issue number for the accepted proposal.
(The #nnnnn suffix must also appear at the end of each line in the file;
that will be preserved when next/*.txt is concatenated into go1.XX.txt.)