8 Commits

Author SHA1 Message Date
Laramie Leavitt
917bfee465 IWYU: Update includes and fix minor spelling mistakes.
PiperOrigin-RevId: 697000534
Change-Id: Ia885033535c5e2f57884a922bdcff9db7b565f49
2024-11-15 14:24:26 -08:00
Aaron Jacobs
feb6aab8db distributions: support a zero max value in Zipf.
There is no documentation that says zero isn't okay, and the closed interval
[0, k] described by the documentation is perfectly well-defined even when k is
zero. As far as I can tell, there is no reason *not* to support zero: a random
variable that always returns the same value is still a random variable.
absl::Uniform will happily generate on the interval [0, 1) for the same
reason.
PiperOrigin-RevId: 694649518
Change-Id: Ib940406f762a30e27c19c846c45bd908ae8411c3
2024-11-08 14:51:28 -08:00
Aaron Jacobs
6312b70b9d absl/random: run clang-format.
In order to avoid unrelated diffs in future changes that touch this code.

PiperOrigin-RevId: 694625990
Change-Id: I51ac54438a977f38c54c7638701d9ff3a259a58b
2024-11-08 13:46:02 -08:00
Abseil Team
7f850b3167 Export of internal Abseil changes
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ed829ac612f090375427c3488827c6e74deb2e3f by Derek Mauro <dmauro@google.com>:

Update latest GCC/Clang Linux tests to Bazel 5.0.0 and CMake 3.22.2

PiperOrigin-RevId: 429369775

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76952303c4d942288c4e7657ffb5893cec54a132 by Martijn Vels <mvels@google.com>:

Optimize Cord::ChunkIterator now that CordRepConcat is removed

PiperOrigin-RevId: 429321455

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dcd0d287793649aba9b98268c5783e449a34749f by Martijn Vels <mvels@google.com>:

Add IsDataEdge() and DataEdgeValue() helper functions.

This moves repetitive logic accessing data edges into its own header, and more strongly defines the notion of what a data edge is, enforcing the internal invariants. This will also be incorporated in optimized Cord iteration logic once CordRepConcat is totally removed from the Cord code.

PiperOrigin-RevId: 429307248

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6a0903962155988085bf8656743fda9c4cdcba6c by Abseil Team <absl-team@google.com>:

Make it clear that the probability function given for the zipf distribution is unnormalized, i.e., sum(p(x) for x = 0..k) != 100%.

Quoting Section 7 of the paper cited in the comments, where this formula comes from (emphasis mine): "We will consider the two parameter generalization as defined in Dagpunar [1988] with the *unnormalized* probability function ..."

PiperOrigin-RevId: 429068258

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3899ff6d444ba755148bc521a6ee031d9e9d4485 by Abseil Team <absl-team@google.com>:

Internal Changes

PiperOrigin-RevId: 428644856

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319de702d2b537cbb76c4c71277ae89b349b162e by Benjamin Barenblat <bbaren@google.com>:

Support symbolization on PA-RISC

Null out supervisor bits in PA-RISC addresses before symbolizing, and
handle function descriptor tables correctly.

Change symbolize_test.cc to use 32-bit aligned addresses, allowing that
test to pass on PA-RISC.

PiperOrigin-RevId: 428590564
GitOrigin-RevId: ed829ac612f090375427c3488827c6e74deb2e3f
Change-Id: Ie01ff3b9365fd45e5a55f858038552679f3180d3
2022-02-17 16:24:45 -05:00
Abseil Team
ec0d76f1d0 Export of internal Abseil changes
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a0847bf19789c97689f1a8b0133a53b8af5e5caa by Samuel Benzaquen <sbenza@google.com>:

Add support for absl::(u)int128 to random distributions and generators.

PiperOrigin-RevId: 411565479
GitOrigin-RevId: a0847bf19789c97689f1a8b0133a53b8af5e5caa
Change-Id: Ide434bdd93fcab8e90f791796498de14833b667c
2021-11-22 14:44:20 -05:00
Abseil Team
12bc53e031 Export of internal Abseil changes
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c99f979ad34f155fbeeea69b88bdc7458d89a21c by Derek Mauro <dmauro@google.com>:

Remove a floating point division by zero test.

This isn't testing behavior related to the library, and MSVC warns
about it in opt mode.

PiperOrigin-RevId: 285220804

--
68b015491f0dbf1ab547994673281abd1f34cd4b by Gennadiy Rozental <rogeeff@google.com>:

This CL introduces following changes to the class FlagImpl:
* We eliminate the CommandLineFlagLocks struct. Instead callback guard and callback function are combined into a single CallbackData struct, while primary data lock is stored separately.
* CallbackData member of class FlagImpl is initially set to be nullptr and is only allocated and initialized when a flag's callback is being set. For most flags we do not pay for the extra space and extra absl::Mutex now.
* Primary data guard is stored in data_guard_ data member. This is a properly aligned character buffer of necessary size. During initialization of the flag we construct absl::Mutex in this space using placement new call.
* We now avoid extra value copy after successful attempt to parse value out of string. Instead we swap flag's current value with tentative value we just produced.

PiperOrigin-RevId: 285132636

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ed45d118fb818969eb13094cf7827c885dfc562c by Tom Manshreck <shreck@google.com>:

Change null-term* (and nul-term*) to NUL-term* in comments

PiperOrigin-RevId: 285036610

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729619017944db895ce8d6d29c1995aa2e5628a5 by Derek Mauro <dmauro@google.com>:

Use the Posix implementation of thread identity on MinGW.
Some versions of MinGW suffer from thread_local bugs.

PiperOrigin-RevId: 285022920

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39a25493503c76885bc3254c28f66a251c5b5bb0 by Greg Falcon <gfalcon@google.com>:

Implementation detail change.

Add further ABSL_NAMESPACE_BEGIN and _END annotation macros to files in Abseil.

PiperOrigin-RevId: 285012012
GitOrigin-RevId: c99f979ad34f155fbeeea69b88bdc7458d89a21c
Change-Id: I4c85d3704e45d11a9ac50d562f39640a6adbedc1
2019-12-12 15:37:13 -05:00
Abseil Team
8efba58a3b Export of internal Abseil changes
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38bc0644e17bf9fe4d78d3db92cd06f585b99ba7 by Andy Soffer <asoffer@google.com>:

Change benchmark to be cc_binary instead of cc_test, and fix a bug in the zipf_distribution benchmark in which arguments were passed in the wrong order.

PiperOrigin-RevId: 262227159

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3b5411d8f285a758a1713f7ef0dbfa3518f2b38b by CJ Johnson <johnsoncj@google.com>:

Updates Simple<*>() overload to match the name schema of the others

PiperOrigin-RevId: 262211217

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0cb6812cb8b6e3bf0386b9354189ffcf46c4c094 by Andy Soffer <asoffer@google.com>:

Removing period in trailing namespace comments.

PiperOrigin-RevId: 262210952

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c903feae3a881be81adf37e9fccd558ee3ed1e64 by CJ Johnson <johnsoncj@google.com>:

This is a cleanup on the public header of InlinedVector to be more presentable

PiperOrigin-RevId: 262207691

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9a94384dc79cdcf38f6153894f337ebb744e2d76 by Tom Manshreck <shreck@google.com>:

Fix incorrect doc on operator()[] for flat_hash_set

PiperOrigin-RevId: 262206962

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17e88ee10b727af82c04f8150b6d246eaac836cb by Derek Mauro <dmauro@google.com>:

Fix gcc-5 build error

PiperOrigin-RevId: 262198236
GitOrigin-RevId: 38bc0644e17bf9fe4d78d3db92cd06f585b99ba7
Change-Id: I77cababa47ba3ee8b6cebb2c2cfc9f60a331f6b7
2019-08-08 11:25:03 -04:00
Abseil Team
e9324d926a Export of internal Abseil changes.
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7a6ff16a85beb730c172d5d25cf1b5e1be885c56 by Laramie Leavitt <lar@google.com>:

Internal change.

PiperOrigin-RevId: 254454546

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ff8f9bafaefc26d451f576ea4a06d150aed63f6f by Andy Soffer <asoffer@google.com>:

Internal changes

PiperOrigin-RevId: 254451562

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deefc5b651b479ce36f0b4ef203e119c0c8936f2 by CJ Johnson <johnsoncj@google.com>:

Account for subtracting unsigned values from the size of InlinedVector

PiperOrigin-RevId: 254450625

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3c677316a27bcadc17e41957c809ca472d5fef14 by Andy Soffer <asoffer@google.com>:

Add C++17's std::make_from_tuple to absl/utility/utility.h

PiperOrigin-RevId: 254411573

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4ee3536a918830eeec402a28fc31a62c7c90b940 by CJ Johnson <johnsoncj@google.com>:

Adds benchmark for the rest of the InlinedVector public API

PiperOrigin-RevId: 254408378

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e5a21a00700ee83498ff1efbf649169756463ee4 by CJ Johnson <johnsoncj@google.com>:

Updates the definition of InlinedVector::shrink_to_fit() to be exception safe and adds exception safety tests for it.

PiperOrigin-RevId: 254401387

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2ea82e72b86d82d78b4e4712a63a55981b53c64b by Laramie Leavitt <lar@google.com>:

Use absl::InsecureBitGen in place of std::mt19937
in tests absl/random/...distribution_test.cc

PiperOrigin-RevId: 254289444

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fa099e02c413a7ffda732415e8105cad26a90337 by Andy Soffer <asoffer@google.com>:

Internal changes

PiperOrigin-RevId: 254286334

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ce34b7f36933b30cfa35b9c9a5697a792b5666e4 by Andy Soffer <asoffer@google.com>:

Internal changes

PiperOrigin-RevId: 254273059

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6f9c473da7c2090c2e85a37c5f00622e8a912a89 by Jorg Brown <jorg@google.com>:

Change absl::container_internal::CompressedTuple to instantiate its
internal Storage class with the name of the type it's holding, rather
than the name of the Tuple.  This is not an externally-visible change,
other than less compiler memory is used and less debug information is
generated.

PiperOrigin-RevId: 254269285

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8bd3c186bf2fc0c55d8a2dd6f28a5327502c9fba by Andy Soffer <asoffer@google.com>:

Adding short-hand IntervalClosed for IntervalClosedClosed and IntervalOpen for
IntervalOpenOpen.

PiperOrigin-RevId: 254252419

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ea957f99b6a04fccd42aa05605605f3b44b1ecfd by Abseil Team <absl-team@google.com>:

Do not directly use __SIZEOF_INT128__.

In order to avoid linker errors when building with clang-cl (__fixunsdfti, __udivti3 and __fixunssfti are undefined), this CL uses ABSL_HAVE_INTRINSIC_INT128 which is not defined for clang-cl.

PiperOrigin-RevId: 254250739

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89ab385cd26b34d64130bce856253aaba96d2345 by Andy Soffer <asoffer@google.com>:

Internal changes

PiperOrigin-RevId: 254242321

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cffc793d93eca6d6bdf7de733847b6ab4a255ae9 by CJ Johnson <johnsoncj@google.com>:

Adds benchmark for InlinedVector::reserve(size_type)

PiperOrigin-RevId: 254199226

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c90c7a9fa3c8f0c9d5114036979548b055ea2f2a by Gennadiy Rozental <rogeeff@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 254072387

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c4c388beae016c9570ab54ffa1d52660e4a85b7b by Laramie Leavitt <lar@google.com>:

Internal cleanup.

PiperOrigin-RevId: 254062381

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d3c992e221cc74e5372d0c8fa410170b6a43c062 by Tom Manshreck <shreck@google.com>:

Update distributions.h to Abseil standards

PiperOrigin-RevId: 254054946

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d15ad0035c34ef11b14fadc5a4a2d3ec415f5518 by CJ Johnson <johnsoncj@google.com>:

Removes functions with only one caller from the implementation details of InlinedVector by manually inlining the definitions

PiperOrigin-RevId: 254005427

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2f37e807efc3a8ef1f4b539bdd379917d4151520 by Andy Soffer <asoffer@google.com>:

Initial release of Abseil Random

PiperOrigin-RevId: 253999861

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24ed1694b6430791d781ed533a8f8ccf6cac5856 by CJ Johnson <johnsoncj@google.com>:

Updates the definition of InlinedVector::assign(...)/InlinedVector::operator=(...) to new, exception-safe implementations with exception safety tests to boot

PiperOrigin-RevId: 253993691

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5613d95f5a7e34a535cfaeadce801441e990843e by CJ Johnson <johnsoncj@google.com>:

Adds benchmarks for InlinedVector::shrink_to_fit()

PiperOrigin-RevId: 253989647

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2a96ddfdac40bbb8cb6a7f1aeab90917067c6e63 by Abseil Team <absl-team@google.com>:

Initial release of Abseil Random

PiperOrigin-RevId: 253927497

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bf1aff8fc9ffa921ad74643e9525ecf25b0d8dc1 by Andy Soffer <asoffer@google.com>:

Initial release of Abseil Random

PiperOrigin-RevId: 253920512

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bfc03f4a3dcda3cf3a4b84bdb84cda24e3394f41 by Laramie Leavitt <lar@google.com>:

Internal change.

PiperOrigin-RevId: 253886486

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05036cfcc078ca7c5f581a00dfb0daed568cbb69 by Eric Fiselier <ericwf@google.com>:

Don't include `winsock2.h` because it drags in `windows.h` and friends,
and they define awful macros like OPAQUE, ERROR, and more. This has the
potential to break abseil users.

Instead we only forward declare `timeval` and require Windows users
include `winsock2.h` themselves. This is both inconsistent and poor QoI, but so
including 'windows.h' is bad too.

PiperOrigin-RevId: 253852615
GitOrigin-RevId: 7a6ff16a85beb730c172d5d25cf1b5e1be885c56
Change-Id: Icd6aff87da26f29ec8915da856f051129987cef6
2019-06-21 16:18:10 -04:00