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tvl-depot/absl/random/BUILD.bazel
Abseil Team 078b89b3c0 Export of internal Abseil changes 
--
e54b9c7bbb0c58475676c268e2e19c69f4bce48a by Jorg Brown <jorg@google.com>:

Tweak ABSL_PREDICT_TRUE slightly, for better code on some platforms and/or
optimization levels.  "false || (x)" is more verbose than "!!(x)", but
ultimately more efficient.

For example, given this code:

void InitIfNecessary() {
  if (ABSL_PREDICT_TRUE(NeedsInit())) {
    SlowInitIfNecessary();
  }
}

Clang with default optimization level will produce:

Before this CL              After this CL
InitIfNecessary:            InitIfNecessary:
  push rbp                    push rbp
  mov  rbp, rsp               mov  rbp, rsp
  call NeedsInit              call NeedsInit
  xor  al, -1
  xor  al, -1
  test al, 1                  test al, 1
  jne  .LBB2_1                jne  .LBB3_1
  jmp  .LBB2_2                jmp  .LBB3_2
.LBB2_1:                    .LBB3_1:
  call SlowInitIfNecessary    call SlowInitIfNecessary
.LBB2_2:                    .LBB3_2:
  pop  rbp                    pop  rbp
  ret                         ret
PiperOrigin-RevId: 276401386

--
0a3c4dfd8342bf2b1b11a87f1c662c883f73cab7 by Abseil Team <absl-team@google.com>:

Fix comment nit: sem_open => sem_init.

The code calls sem_init, not sem_open, to initialize an unnamed semaphore.
(sem_open creates or opens a named semaphore.)

PiperOrigin-RevId: 276344072

--
b36a664e9459057509a90e83d3482e1d3a4c44c7 by Abseil Team <absl-team@google.com>:

Fix typo in flat_hash_map.h: exchaged -> exchanged

PiperOrigin-RevId: 276295792

--
7bbd8d18276eb110c8335743e35fceb662ddf3d6 by Samuel Benzaquen <sbenza@google.com>:

Add assertions to verify use of iterators.

PiperOrigin-RevId: 276283300

--
677398a8ffcb1f59182cffe57a4fe7ff147a0404 by Laramie Leavitt <lar@google.com>:

Migrate distribution_impl.h/cc to generate_real.h/cc.

Combine the methods RandU64To<Float,Double> into a single method:
GenerateRealFromBits().

Remove rejection sampling from absl::uniform_real_distribution.

PiperOrigin-RevId: 276158675

--
c60c9d11d24b0c546329d998e78e15a84b3153f5 by Abseil Team <absl-team@google.com>:

Internal change

PiperOrigin-RevId: 276126962

--
4c840cab6a8d86efa29b397cafaf7520eece68cc by Andy Soffer <asoffer@google.com>:

Update CMakeLists.txt to address https://github.com/abseil/abseil-cpp/issues/365.
This does not cover every platform, but it does at least address the
first-order issue of assuming gcc implies x86.

PiperOrigin-RevId: 276116253

--
98da366e6b5d51afe5d7ac6722126aca23d85ee6 by Abseil Team <absl-team@google.com>:

Internal change

PiperOrigin-RevId: 276097452
GitOrigin-RevId: e54b9c7bbb0c58475676c268e2e19c69f4bce48a
Change-Id: I02d84454bb71ab21ad3d39650acf6cc6e36f58d7
2019-10-24 10:29:13 -04:00

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#
# Copyright 2019 The Abseil Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# ABSL random-number generation libraries.
load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_test")
load(
"//absl:copts/configure_copts.bzl",
"ABSL_DEFAULT_COPTS",
"ABSL_DEFAULT_LINKOPTS",
"ABSL_TEST_COPTS",
)
package(default_visibility = ["//visibility:public"])
licenses(["notice"])
cc_library(
name = "random",
hdrs = ["random.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distributions",
":seed_sequences",
"//absl/random/internal:nonsecure_base",
"//absl/random/internal:pcg_engine",
"//absl/random/internal:pool_urbg",
"//absl/random/internal:randen_engine",
],
)
cc_library(
name = "distributions",
srcs = [
"discrete_distribution.cc",
"gaussian_distribution.cc",
],
hdrs = [
"bernoulli_distribution.h",
"beta_distribution.h",
"discrete_distribution.h",
"distribution_format_traits.h",
"distributions.h",
"exponential_distribution.h",
"gaussian_distribution.h",
"log_uniform_int_distribution.h",
"poisson_distribution.h",
"uniform_int_distribution.h",
"uniform_real_distribution.h",
"zipf_distribution.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
"//absl/base:base_internal",
"//absl/base:core_headers",
"//absl/meta:type_traits",
"//absl/random/internal:distributions",
"//absl/random/internal:fast_uniform_bits",
"//absl/random/internal:fastmath",
"//absl/random/internal:generate_real",
"//absl/random/internal:iostream_state_saver",
"//absl/random/internal:traits",
"//absl/random/internal:uniform_helper",
"//absl/random/internal:wide_multiply",
"//absl/strings",
"//absl/types:span",
],
)
cc_library(
name = "seed_gen_exception",
srcs = ["seed_gen_exception.cc"],
hdrs = ["seed_gen_exception.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = ["//absl/base:config"],
)
cc_library(
name = "seed_sequences",
srcs = ["seed_sequences.cc"],
hdrs = [
"seed_sequences.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":seed_gen_exception",
"//absl/container:inlined_vector",
"//absl/random/internal:nonsecure_base",
"//absl/random/internal:pool_urbg",
"//absl/random/internal:salted_seed_seq",
"//absl/random/internal:seed_material",
"//absl/types:span",
],
)
cc_test(
name = "bernoulli_distribution_test",
size = "small",
timeout = "eternal", # Android can take a very long time
srcs = ["bernoulli_distribution_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distributions",
":random",
"//absl/random/internal:sequence_urbg",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "beta_distribution_test",
size = "small",
timeout = "eternal", # Android can take a very long time
srcs = ["beta_distribution_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distributions",
":random",
"//absl/base:raw_logging_internal",
"//absl/random/internal:distribution_test_util",
"//absl/random/internal:sequence_urbg",
"//absl/strings",
"//absl/strings:str_format",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "distributions_test",
size = "small",
srcs = [
"distributions_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distributions",
":random",
"//absl/random/internal:distribution_test_util",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "generators_test",
size = "small",
srcs = ["generators_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distributions",
":random",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "log_uniform_int_distribution_test",
size = "medium",
srcs = [
"log_uniform_int_distribution_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distributions",
":random",
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
"//absl/random/internal:distribution_test_util",
"//absl/random/internal:sequence_urbg",
"//absl/strings",
"//absl/strings:str_format",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "discrete_distribution_test",
size = "medium",
srcs = [
"discrete_distribution_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distributions",
":random",
"//absl/base:raw_logging_internal",
"//absl/random/internal:distribution_test_util",
"//absl/random/internal:sequence_urbg",
"//absl/strings",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "poisson_distribution_test",
size = "small",
timeout = "eternal", # Android can take a very long time
srcs = [
"poisson_distribution_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
tags = [
# Too Slow.
"no_test_android_arm",
"no_test_loonix",
],
deps = [
":distributions",
":random",
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
"//absl/container:flat_hash_map",
"//absl/random/internal:distribution_test_util",
"//absl/random/internal:sequence_urbg",
"//absl/strings",
"//absl/strings:str_format",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "exponential_distribution_test",
size = "small",
srcs = ["exponential_distribution_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distributions",
":random",
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
"//absl/random/internal:distribution_test_util",
"//absl/random/internal:sequence_urbg",
"//absl/strings",
"//absl/strings:str_format",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "gaussian_distribution_test",
size = "small",
timeout = "eternal", # Android can take a very long time
srcs = [
"gaussian_distribution_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distributions",
":random",
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
"//absl/random/internal:distribution_test_util",
"//absl/random/internal:sequence_urbg",
"//absl/strings",
"//absl/strings:str_format",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "uniform_int_distribution_test",
size = "medium",
timeout = "long",
srcs = [
"uniform_int_distribution_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distributions",
":random",
"//absl/base:raw_logging_internal",
"//absl/random/internal:distribution_test_util",
"//absl/random/internal:sequence_urbg",
"//absl/strings",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "uniform_real_distribution_test",
size = "medium",
srcs = [
"uniform_real_distribution_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
tags = [
"no_test_android_arm",
"no_test_android_arm64",
"no_test_android_x86",
],
deps = [
":distributions",
":random",
"//absl/base:raw_logging_internal",
"//absl/random/internal:distribution_test_util",
"//absl/random/internal:sequence_urbg",
"//absl/strings",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "zipf_distribution_test",
size = "medium",
srcs = [
"zipf_distribution_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distributions",
":random",
"//absl/base:raw_logging_internal",
"//absl/random/internal:distribution_test_util",
"//absl/random/internal:sequence_urbg",
"//absl/strings",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "examples_test",
size = "small",
srcs = ["examples_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":random",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "seed_sequences_test",
size = "small",
srcs = ["seed_sequences_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":random",
":seed_sequences",
"//absl/random/internal:nonsecure_base",
"@com_google_googletest//:gtest_main",
],
)
BENCHMARK_TAGS = [
"benchmark",
"no_test_android_arm",
"no_test_android_arm64",
"no_test_android_x86",
"no_test_darwin_x86_64",
"no_test_ios_x86_64",
"no_test_loonix",
"no_test_msvc_x64",
"no_test_wasm",
]
# Benchmarks for various methods / test utilities
cc_binary(
name = "benchmarks",
testonly = 1,
srcs = [
"benchmarks.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
tags = BENCHMARK_TAGS,
deps = [
":distributions",
":random",
":seed_sequences",
"//absl/base:core_headers",
"//absl/meta:type_traits",
"//absl/random/internal:fast_uniform_bits",
"//absl/random/internal:randen_engine",
"@com_github_google_benchmark//:benchmark_main",
],
)
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