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Replaced by internal/strconv.
Change-Id: I0656a9ad5075e60339e963fbae7d194d2f3e16be
Reviewed-on: https://go-review.googlesource.com/c/go/+/716001
Reviewed-by: David Chase <drchase@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
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For #67401.
Change-Id: I7dd28c3b01a1a647f84929d15412aa43ab0089ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/587575
Reviewed-by: Cherry Mui <cherryyz@google.com>
Auto-Submit: Russ Cox <rsc@golang.org>
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Doing this because the slices functions are slightly faster and
slightly easier to use. It also removes one dependency layer.
This CL does not change packages that are used during bootstrap,
as the bootstrap compiler does not have the required slices functions.
It does not change the go/scanner package because the ErrorList
Len, Swap, and Less methods are part of the Go 1 API.
Change-Id: If52899be791c829198e11d2408727720b91ebe8a
Reviewed-on: https://go-review.googlesource.com/c/go/+/587655
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Commit-Queue: Ian Lance Taylor <iant@google.com>
Reviewed-by: Damien Neil <dneil@google.com>
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I ran go fmt to fix format on the entire repository.
Change-Id: I2f09166b6b8ba0ffb0ba27f6500efb0ea4cf21ff
Reviewed-on: https://go-review.googlesource.com/c/go/+/566835
Reviewed-by: Ian Lance Taylor <iant@google.com>
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Reviewed-by: Carlos Amedee <carlos@golang.org>
Auto-Submit: Ian Lance Taylor <iant@golang.org>
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Move ChaCha8 code into internal/chacha8rand and use it to implement
runtime.rand, which is used for the unseeded global source for
both math/rand and math/rand/v2. This also affects the calculation of
the start point for iteration over very very large maps (when the
32-bit fastrand is not big enough).
The benefit is that misuse of the global random number generators
in math/rand and math/rand/v2 in contexts where non-predictable
randomness is important for security reasons is no longer a
security problem, removing a common mistake among programmers
who are unaware of the different kinds of randomness.
The cost is an extra 304 bytes per thread stored in the m struct
plus 2-3ns more per random uint64 due to the more sophisticated
algorithm. Using PCG looks like it would cost about the same,
although I haven't benchmarked that.
Before this, the math/rand and math/rand/v2 global generator
was wyrand (https://github.com/wangyi-fudan/wyhash).
For math/rand, using wyrand instead of the Mitchell/Reeds/Thompson
ALFG was justifiable, since the latter was not any better.
But for math/rand/v2, the global generator really should be
at least as good as one of the well-studied, specific algorithms
provided directly by the package, and it's not.
(Wyrand is still reasonable for scheduling and cache decisions.)
Good randomness does have a cost: about twice wyrand.
Also rationalize the various runtime rand references.
goos: linux
goarch: amd64
pkg: math/rand/v2
cpu: AMD Ryzen 9 7950X 16-Core Processor
│ bbb48afeb7.amd64 │ 5cf807d1ea.amd64 │
│ sec/op │ sec/op vs base │
ChaCha8-32 1.862n ± 2% 1.861n ± 2% ~ (p=0.825 n=20)
PCG_DXSM-32 1.471n ± 1% 1.460n ± 2% ~ (p=0.153 n=20)
SourceUint64-32 1.636n ± 2% 1.582n ± 1% -3.30% (p=0.000 n=20)
GlobalInt64-32 2.087n ± 1% 3.663n ± 1% +75.54% (p=0.000 n=20)
GlobalInt64Parallel-32 0.1042n ± 1% 0.2026n ± 1% +94.48% (p=0.000 n=20)
GlobalUint64-32 2.263n ± 2% 3.724n ± 1% +64.57% (p=0.000 n=20)
GlobalUint64Parallel-32 0.1019n ± 1% 0.1973n ± 1% +93.67% (p=0.000 n=20)
Int64-32 1.771n ± 1% 1.774n ± 1% ~ (p=0.449 n=20)
Uint64-32 1.863n ± 2% 1.866n ± 1% ~ (p=0.364 n=20)
GlobalIntN1000-32 3.134n ± 3% 4.730n ± 2% +50.95% (p=0.000 n=20)
IntN1000-32 2.489n ± 1% 2.489n ± 1% ~ (p=0.683 n=20)
Int64N1000-32 2.521n ± 1% 2.516n ± 1% ~ (p=0.394 n=20)
Int64N1e8-32 2.479n ± 1% 2.478n ± 2% ~ (p=0.743 n=20)
Int64N1e9-32 2.530n ± 2% 2.514n ± 2% ~ (p=0.193 n=20)
Int64N2e9-32 2.501n ± 1% 2.494n ± 1% ~ (p=0.616 n=20)
Int64N1e18-32 3.227n ± 1% 3.205n ± 1% ~ (p=0.101 n=20)
Int64N2e18-32 3.647n ± 1% 3.599n ± 1% ~ (p=0.019 n=20)
Int64N4e18-32 5.135n ± 1% 5.069n ± 2% ~ (p=0.034 n=20)
Int32N1000-32 2.657n ± 1% 2.637n ± 1% ~ (p=0.180 n=20)
Int32N1e8-32 2.636n ± 1% 2.636n ± 1% ~ (p=0.763 n=20)
Int32N1e9-32 2.660n ± 2% 2.638n ± 1% ~ (p=0.358 n=20)
Int32N2e9-32 2.662n ± 2% 2.618n ± 2% ~ (p=0.064 n=20)
Float32-32 2.272n ± 2% 2.239n ± 2% ~ (p=0.194 n=20)
Float64-32 2.272n ± 1% 2.286n ± 2% ~ (p=0.763 n=20)
ExpFloat64-32 3.762n ± 1% 3.744n ± 1% ~ (p=0.171 n=20)
NormFloat64-32 3.706n ± 1% 3.655n ± 2% ~ (p=0.066 n=20)
Perm3-32 32.93n ± 3% 34.62n ± 1% +5.13% (p=0.000 n=20)
Perm30-32 202.9n ± 1% 204.0n ± 1% ~ (p=0.482 n=20)
Perm30ViaShuffle-32 115.0n ± 1% 114.9n ± 1% ~ (p=0.358 n=20)
ShuffleOverhead-32 112.8n ± 1% 112.7n ± 1% ~ (p=0.692 n=20)
Concurrent-32 2.107n ± 0% 3.725n ± 1% +76.75% (p=0.000 n=20)
goos: darwin
goarch: arm64
pkg: math/rand/v2
│ bbb48afeb7.arm64 │ 5cf807d1ea.arm64 │
│ sec/op │ sec/op vs base │
ChaCha8-8 2.480n ± 0% 2.429n ± 0% -2.04% (p=0.000 n=20)
PCG_DXSM-8 2.531n ± 0% 2.530n ± 0% ~ (p=0.877 n=20)
SourceUint64-8 2.534n ± 0% 2.533n ± 0% ~ (p=0.732 n=20)
GlobalInt64-8 2.172n ± 1% 4.794n ± 0% +120.67% (p=0.000 n=20)
GlobalInt64Parallel-8 0.4320n ± 0% 0.9605n ± 0% +122.32% (p=0.000 n=20)
GlobalUint64-8 2.182n ± 0% 4.770n ± 0% +118.58% (p=0.000 n=20)
GlobalUint64Parallel-8 0.4307n ± 0% 0.9583n ± 0% +122.51% (p=0.000 n=20)
Int64-8 4.107n ± 0% 4.104n ± 0% ~ (p=0.416 n=20)
Uint64-8 4.080n ± 0% 4.080n ± 0% ~ (p=0.052 n=20)
GlobalIntN1000-8 2.814n ± 2% 5.643n ± 0% +100.50% (p=0.000 n=20)
IntN1000-8 4.141n ± 0% 4.139n ± 0% ~ (p=0.140 n=20)
Int64N1000-8 4.140n ± 0% 4.140n ± 0% ~ (p=0.313 n=20)
Int64N1e8-8 4.140n ± 0% 4.139n ± 0% ~ (p=0.103 n=20)
Int64N1e9-8 4.139n ± 0% 4.140n ± 0% ~ (p=0.761 n=20)
Int64N2e9-8 4.140n ± 0% 4.140n ± 0% ~ (p=0.636 n=20)
Int64N1e18-8 5.266n ± 0% 5.326n ± 1% +1.14% (p=0.001 n=20)
Int64N2e18-8 6.052n ± 0% 6.167n ± 0% +1.90% (p=0.000 n=20)
Int64N4e18-8 8.826n ± 0% 9.051n ± 0% +2.55% (p=0.000 n=20)
Int32N1000-8 4.127n ± 0% 4.132n ± 0% +0.12% (p=0.000 n=20)
Int32N1e8-8 4.126n ± 0% 4.131n ± 0% +0.12% (p=0.000 n=20)
Int32N1e9-8 4.127n ± 0% 4.132n ± 0% +0.12% (p=0.000 n=20)
Int32N2e9-8 4.132n ± 0% 4.131n ± 0% ~ (p=0.017 n=20)
Float32-8 4.109n ± 0% 4.105n ± 0% ~ (p=0.379 n=20)
Float64-8 4.107n ± 0% 4.106n ± 0% ~ (p=0.867 n=20)
ExpFloat64-8 5.339n ± 0% 5.383n ± 0% +0.82% (p=0.000 n=20)
NormFloat64-8 5.735n ± 0% 5.737n ± 1% ~ (p=0.856 n=20)
Perm3-8 26.65n ± 0% 26.80n ± 1% +0.58% (p=0.000 n=20)
Perm30-8 194.8n ± 1% 197.0n ± 0% +1.18% (p=0.000 n=20)
Perm30ViaShuffle-8 156.6n ± 0% 157.6n ± 1% +0.61% (p=0.000 n=20)
ShuffleOverhead-8 124.9n ± 0% 125.5n ± 0% +0.52% (p=0.000 n=20)
Concurrent-8 2.434n ± 3% 5.066n ± 0% +108.09% (p=0.000 n=20)
goos: linux
goarch: 386
pkg: math/rand/v2
cpu: AMD Ryzen 9 7950X 16-Core Processor
│ bbb48afeb7.386 │ 5cf807d1ea.386 │
│ sec/op │ sec/op vs base │
ChaCha8-32 11.295n ± 1% 4.748n ± 2% -57.96% (p=0.000 n=20)
PCG_DXSM-32 7.693n ± 1% 7.738n ± 2% ~ (p=0.542 n=20)
SourceUint64-32 7.658n ± 2% 7.622n ± 2% ~ (p=0.344 n=20)
GlobalInt64-32 3.473n ± 2% 7.526n ± 2% +116.73% (p=0.000 n=20)
GlobalInt64Parallel-32 0.3198n ± 0% 0.5444n ± 0% +70.22% (p=0.000 n=20)
GlobalUint64-32 3.612n ± 0% 7.575n ± 1% +109.69% (p=0.000 n=20)
GlobalUint64Parallel-32 0.3168n ± 0% 0.5403n ± 0% +70.51% (p=0.000 n=20)
Int64-32 7.673n ± 2% 7.789n ± 1% ~ (p=0.122 n=20)
Uint64-32 7.773n ± 1% 7.827n ± 2% ~ (p=0.920 n=20)
GlobalIntN1000-32 6.268n ± 1% 9.581n ± 1% +52.87% (p=0.000 n=20)
IntN1000-32 10.33n ± 2% 10.45n ± 1% ~ (p=0.233 n=20)
Int64N1000-32 10.98n ± 2% 11.01n ± 1% ~ (p=0.401 n=20)
Int64N1e8-32 11.19n ± 2% 10.97n ± 1% ~ (p=0.033 n=20)
Int64N1e9-32 11.06n ± 1% 11.08n ± 1% ~ (p=0.498 n=20)
Int64N2e9-32 11.10n ± 1% 11.01n ± 2% ~ (p=0.995 n=20)
Int64N1e18-32 15.23n ± 2% 15.04n ± 1% ~ (p=0.973 n=20)
Int64N2e18-32 15.89n ± 1% 15.85n ± 1% ~ (p=0.409 n=20)
Int64N4e18-32 18.96n ± 2% 19.34n ± 2% ~ (p=0.048 n=20)
Int32N1000-32 10.46n ± 2% 10.44n ± 2% ~ (p=0.480 n=20)
Int32N1e8-32 10.46n ± 2% 10.49n ± 2% ~ (p=0.951 n=20)
Int32N1e9-32 10.28n ± 2% 10.26n ± 1% ~ (p=0.431 n=20)
Int32N2e9-32 10.50n ± 2% 10.44n ± 2% ~ (p=0.249 n=20)
Float32-32 13.80n ± 2% 13.80n ± 2% ~ (p=0.751 n=20)
Float64-32 23.55n ± 2% 23.87n ± 0% ~ (p=0.408 n=20)
ExpFloat64-32 15.36n ± 1% 15.29n ± 2% ~ (p=0.316 n=20)
NormFloat64-32 13.57n ± 1% 13.79n ± 1% +1.66% (p=0.005 n=20)
Perm3-32 45.70n ± 2% 46.99n ± 2% +2.81% (p=0.001 n=20)
Perm30-32 399.0n ± 1% 403.8n ± 1% +1.19% (p=0.006 n=20)
Perm30ViaShuffle-32 349.0n ± 1% 350.4n ± 1% ~ (p=0.909 n=20)
ShuffleOverhead-32 322.3n ± 1% 323.8n ± 1% ~ (p=0.410 n=20)
Concurrent-32 3.331n ± 1% 7.312n ± 1% +119.50% (p=0.000 n=20)
For #61716.
Change-Id: Ibdddeed85c34d9ae397289dc899e04d4845f9ed2
Reviewed-on: https://go-review.googlesource.com/c/go/+/516860
Reviewed-by: Michael Pratt <mpratt@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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Change-Id: If3d8391d81e8de869dbb3c857f0570817e8aa440
Reviewed-on: https://go-review.googlesource.com/c/go/+/400914
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Run-TryBot: Wayne Zuo <wdvxdr@golangcn.org>
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Fixes #45715
Change-Id: Ibdaa91c97d34473061b377325ebe9a3bf5696c8e
Reviewed-on: https://go-review.googlesource.com/c/go/+/360314
Trust: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
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Change-Id: I8ea9bec8bc33e29b8c265fbca40871bc23667144
Reviewed-on: https://go-review.googlesource.com/c/go/+/330470
Reviewed-by: Damien Neil <dneil@google.com>
Trust: Damien Neil <dneil@google.com>
Trust: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Damien Neil <dneil@google.com>
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This replaces five implementations scattered across low level packages.
(And I plan to use it in a sixth soon.)
Three of the five were byte-for-byte identical.
Change-Id: I3bbbeeac63723a487986c912b604e10ad1e042f4
Reviewed-on: https://go-review.googlesource.com/c/go/+/301549
Trust: Josh Bleecher Snyder <josharian@gmail.com>
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Like we did for sync, let the runtime give net random numbers,
to avoid forcing an import of math/rand for DNS.
Change-Id: Iab3e64121d687d288a3961a8ccbcebe589047253
Reviewed-on: https://go-review.googlesource.com/c/go/+/241258
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
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This also updates the vendored-in versions of several packages: 'go
mod vendor' selects a consistent version of each module, but we had
previously vendored an ad-hoc selection of packages.
Notably, x/crypto/hkdf was previously vendored in at a much newer
commit than the rest of x/crypto. Bringing the rest of x/crypto up to
that commit introduced an import of golang.org/x/sys/cpu, which broke
the js/wasm build, requiring an upgrade of x/sys to pick up CL 165749.
Updates #30228
Updates #30241
Updates #25822
Change-Id: I5b3dbc232b7e6a048a158cbd8d36137af1efb711
Reviewed-on: https://go-review.googlesource.com/c/go/+/164623
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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Packages in vendor/ directories have a "vendor/" path prefix in GOPATH
mode, but intentionally do not in module mode. Since the import path
is embedded in the compiled output, changing that path invalidates
cache entries and causes cmd/go to try to rebuild (and reinstall) the
vendored libraries, which will fail if the directory containing those
libraries is read-only.
If I understood correctly, this is the approach Russ suggested as an
alternative to https://golang.org/cl/136138.
Fixes #27285
Fixes #26988
Change-Id: I8a2507fa892b84cde0a803aaa79e460723da572b
Reviewed-on: https://go-review.googlesource.com/c/147443
Run-TryBot: Bryan C. Mills <bcmills@google.com>
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From https://github.com/golang/go/issues/17659#issuecomment-423113606 ...
> In kubernetes , isDomainName reject Pods "A Record" "pod-ip-address",
> for example: "172-17-0-16", as RFC 3696 section 2 requires
> "top-level domain names not be all-numeric", but this example has
> three hyphen, so I think it should not be reject.
Updates #17659
Change-Id: Ibd8ffb9473d69c45c91525953c09c6749233ca20
Reviewed-on: https://go-review.googlesource.com/136900
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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Combined appends lead to fewer machine code and faster performance.
Some may even say that it makes code more readable.
Running revAddrTests over reverseaddr gives measurable improvements:
name old time/op new time/op delta
ReverseAddress-8 4.10µs ± 3% 3.94µs ± 1% -3.81% (p=0.000 n=10+9)
Change-Id: I9bda7a20f802bcdffc6e948789765d04c6da04e7
Reviewed-on: https://go-review.googlesource.com/117615
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Vendors golang.org/x/net/dns/dnsmessage from x/net git rev
892bf7b0c6e2f93b51166bf3882e50277fa5afc6
Updates #16218
Updates #21160
Change-Id: Ic4e8f3c3d83c2936354ec14c5be93b0d2b42dd91
Reviewed-on: https://go-review.googlesource.com/37879
Run-TryBot: Matthew Dempsky <mdempsky@google.com>
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The 255-octet limit applies to wire format, not presentation format.
Fixes #17549
Change-Id: I2b5181c53fba32fea60178e0d8df9114aa992b55
Reviewed-on: https://go-review.googlesource.com/31722
Run-TryBot: Russ Cox <rsc@golang.org>
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The tree's pretty inconsistent about single space vs double space
after a period in documentation. Make it consistently a single space,
per earlier decisions. This means contributors won't be confused by
misleading precedence.
This CL doesn't use go/doc to parse. It only addresses // comments.
It was generated with:
$ perl -i -npe 's,^(\s*// .+[a-z]\.) +([A-Z]),$1 $2,' $(git grep -l -E '^\s*//(.+\.) +([A-Z])')
$ go test go/doc -update
Change-Id: Iccdb99c37c797ef1f804a94b22ba5ee4b500c4f7
Reviewed-on: https://go-review.googlesource.com/20022
Reviewed-by: Rob Pike <r@golang.org>
Reviewed-by: Dave Day <djd@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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Change-Id: Icd06d99c42b8299fd931c7da821e1f418684d913
Reviewed-on: https://go-review.googlesource.com/19829
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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Change-Id: I95c6c85eecb53ffe52b64d521180148b624e9424
Reviewed-on: https://go-review.googlesource.com/18423
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Fixes #13564.
Change-Id: I30c827ef4a112fee21b8493a67d0227109e35072
Reviewed-on: https://go-review.googlesource.com/18384
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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local source
The builtin name resolver using various resolution techniques is a bit
complicated and we sometimes fotget to take care of all the go and cgo
code paths and exchanging information to local and remote sources. This
change makes LookupAddr return absolute domain names even in the case of
local source.
Updates #12189.
Fixes #12240.
Change-Id: Icdd3375bcddc7f5d4d3b24f134d93815073736fc
Reviewed-on: https://go-review.googlesource.com/17216
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
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Fixes #12778
Change-Id: I2ca53180d46180b951749abe453fd560d0f1d9d6
Reviewed-on: https://go-review.googlesource.com/16950
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
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Fixes #8434
Change-Id: I323222b4160f3aba35cac1de7f6df93c524b72ec
Reviewed-on: https://go-review.googlesource.com/14169
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
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unconditionally
This change prevents DNS query results using domain search list
overtaking results not using the list unconditionally, which only
happens when using builtin DNS stub resolver.
The previous internal lookup function lookup is split into lookup and
goLookupIPOrder for iteration over a set of names: FQDN or absolute
FQDN, with domain label suffixes in search list, without domain label
suffixes, and for concurrent A and AAAA record queries.
Fixes #11081.
Change-Id: I9ff0640f69276e372d97e709b149ed5b153e8601
Reviewed-on: https://go-review.googlesource.com/10836
Reviewed-by: Russ Cox <rsc@golang.org>
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This change fixes inconsistent error values on
Lookup{Addr,CNAME,Host,IP.MX,NS,Port,SRV,TXT}.
Updates #4856.
Change-Id: I059bc8ffb96ee74dff8a8c4e8e6ae3e4a462a7ef
Reviewed-on: https://go-review.googlesource.com/9108
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Update #10417.
Change-Id: Ibfbdd05358f696a37217eef160f71b14a468ff86
Reviewed-on: https://go-review.googlesource.com/8788
Reviewed-by: Rob Pike <r@golang.org>
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This change adds support for case insensitivity of DNS labels to
built-in DNS stub resolver as described in RFC 4343.
Fixes #9215.
Change-Id: Ia752fe71866a3bfa3ea08371985b799d419ddea3
Reviewed-on: https://go-review.googlesource.com/3685
Reviewed-by: Ian Lance Taylor <iant@golang.org>
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Rename itod to uitoa to have consistent naming with other itoa functions.
Reduce redundant code by calling uitoa from itoa.
Reduce buffer to maximally needed size for conversion of 64bit integers.
Adjust calls to itoa functions in package net to use new name for itod.
Avoid calls to itoa if uitoa suffices.
Change-Id: I79deaede4d4b0c076a99a4f4dd6f644ba1daec53
Reviewed-on: https://go-review.googlesource.com/2212
Reviewed-by: Mikio Hara <mikioh.mikioh@gmail.com>
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Preparation was in CL 134570043.
This CL contains only the effect of 'hg mv src/pkg/* src'.
For more about the move, see golang.org/s/go14nopkg.
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