Squashed 'src/crc32c/' content from commit 224988680f7673cd7c769963d4…

…035cb315aa3388

git-subtree-dir: src/crc32c
git-subtree-split: 224988680f7673cd7c769963d4035cb315aa3388

.appveyor.yml

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+# Build matrix / environment variables are explained on:
+# https://www.appveyor.com/docs/appveyor-yml/
+# This file can be validated on: https://ci.appveyor.com/tools/validate-yaml
+
+version: "{build}"
+
+environment:
+  matrix:
+    # AppVeyor currently has no custom job name feature.
+    # http://help.appveyor.com/discussions/questions/1623-can-i-provide-a-friendly-name-for-jobs
+    - JOB: Visual Studio 2017
+      APPVEYOR_BUILD_WORKER_IMAGE: Visual Studio 2017
+      CMAKE_GENERATOR: Visual Studio 15 2017
+
+platform:
+  - x86
+  - x64
+
+configuration:
+  - RelWithDebInfo
+  - Debug
+
+build_script:
+  - git submodule update --init --recursive
+  - mkdir build
+  - cd build
+  - if "%platform%"=="x64" set CMAKE_GENERATOR=%CMAKE_GENERATOR% Win64
+  - cmake --version
+  - cmake .. -G "%CMAKE_GENERATOR%" -DCRC32C_USE_GLOG=0
+      -DCMAKE_CONFIGURATION_TYPES="%CONFIGURATION%"
+  - cmake --build . --config "%CONFIGURATION%"
+  - cd ..
+
+test_script:
+  - build\%CONFIGURATION%\crc32c_tests.exe
+  - build\%CONFIGURATION%\crc32c_capi_tests.exe
+  - build\%CONFIGURATION%\crc32c_bench.exe

.clang-format

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+---
+Language:      Cpp
+BasedOnStyle:  Google

.clang_complete

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+-Ibuild/include/
+-Ibuild/third_party/glog/
+-Iinclude/
+-Ithird_party/benchmark/include/
+-Ithird_party/googletest/googletest/include/
+-Ithird_party/googletest/googlemock/include/
+-Ithird_party/glog/src/
+-std=c++11

.gitignore

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+# Editors.
+*.sw*
+.DS_Store
+/.vscode
+
+# Build directory.
+build/
+out/

.travis.yml

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+# Build matrix / environment variables are explained on:
+# http://about.travis-ci.org/docs/user/build-configuration/
+# This file can be validated on: http://lint.travis-ci.org/
+
+language: cpp
+dist: bionic
+osx_image: xcode10.3
+
+compiler:
+- gcc
+- clang
+os:
+- linux
+- osx
+
+env:
+- GLOG=1 SHARED_LIB=0 BUILD_TYPE=Debug
+- GLOG=1 SHARED_LIB=0 BUILD_TYPE=RelWithDebInfo
+- GLOG=0 SHARED_LIB=0 BUILD_TYPE=Debug
+- GLOG=0 SHARED_LIB=0 BUILD_TYPE=RelWithDebInfo
+- GLOG=0 SHARED_LIB=1 BUILD_TYPE=Debug
+- GLOG=0 SHARED_LIB=1 BUILD_TYPE=RelWithDebInfo
+
+addons:
+  apt:
+    sources:
+    - sourceline: 'deb http://apt.llvm.org/bionic/ llvm-toolchain-bionic-9 main'
+      key_url: 'https://apt.llvm.org/llvm-snapshot.gpg.key'
+    - sourceline: 'ppa:ubuntu-toolchain-r/test'
+    packages:
+    - clang-9
+    - cmake
+    - gcc-9
+    - g++-9
+    - ninja-build
+  homebrew:
+    packages:
+    - cmake
+    - gcc@9
+    - llvm@9
+    - ninja
+    update: true
+
+install:
+# The following Homebrew packages aren't linked by default, and need to be
+# prepended to the path explicitly.
+- if [ "$TRAVIS_OS_NAME" = "osx" ]; then
+    export PATH="$(brew --prefix llvm)/bin:$PATH";
+  fi
+# /usr/bin/gcc points to an older compiler on both Linux and macOS.
+- if [ "$CXX" = "g++" ]; then export CXX="g++-9" CC="gcc-9"; fi
+# /usr/bin/clang points to an older compiler on both Linux and macOS.
+#
+# Homebrew's llvm package doesn't ship a versioned clang++ binary, so the values
+# below don't work on macOS. Fortunately, the path change above makes the
+# default values (clang and clang++) resolve to the correct compiler on macOS.
+- if [ "$TRAVIS_OS_NAME" = "linux" ]; then
+    if [ "$CXX" = "clang++" ]; then export CXX="clang++-9" CC="clang-9"; fi;
+  fi
+- echo ${CC}
+- echo ${CXX}
+- ${CXX} --version
+- cmake --version
+
+before_script:
+- mkdir -p build && cd build
+- cmake .. -G Ninja -DCRC32C_USE_GLOG=$GLOG -DCMAKE_BUILD_TYPE=$BUILD_TYPE
+           -DBUILD_SHARED_LIBS=$SHARED_LIB -DCMAKE_INSTALL_PREFIX=$HOME/.local
+- cmake --build .
+- cd ..
+
+script:
+- build/crc32c_tests
+- build/crc32c_capi_tests
+- build/crc32c_bench
+- cd build && cmake --build . --target install

.ycm_extra_conf.py

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+# Copyright 2017 The CRC32C Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+"""YouCompleteMe configuration that interprets a .clang_complete file.
+
+This module implementes the YouCompleteMe configuration API documented at:
+https://github.com/Valloric/ycmd#ycm_extra_confpy-specification
+
+The implementation loads and processes a .clang_complete file, documented at:
+https://github.com/Rip-Rip/clang_complete/blob/master/README.md
+"""
+
+import os
+
+# Flags added to the list in .clang_complete.
+BASE_FLAGS = [
+    '-Werror',  # Unlike clang_complete, YCM can also be used as a linter.
+    '-DUSE_CLANG_COMPLETER',  # YCM needs this.
+    '-xc++',  # YCM needs this to avoid compiling headers as C code.
+]
+
+# Clang flags that take in paths.
+# See https://clang.llvm.org/docs/ClangCommandLineReference.html
+PATH_FLAGS = [
+    '-isystem',
+    '-I',
+    '-iquote',
+    '--sysroot='
+]
+
+
+def DirectoryOfThisScript():
+  """Returns the absolute path to the directory containing this script."""
+  return os.path.dirname(os.path.abspath(__file__))
+
+
+def MakeRelativePathsInFlagsAbsolute(flags, build_root):
+  """Expands relative paths in a list of Clang command-line flags.
+
+  Args:
+    flags: The list of flags passed to Clang.
+    build_root: The current directory when running the Clang compiler. Should be
+        an absolute path.
+
+  Returns:
+    A list of flags with relative paths replaced by absolute paths.
+  """
+  new_flags = []
+  make_next_absolute = False
+  for flag in flags:
+    new_flag = flag
+
+    if make_next_absolute:
+      make_next_absolute = False
+      if not flag.startswith('/'):
+        new_flag = os.path.join(build_root, flag)
+
+    for path_flag in PATH_FLAGS:
+      if flag == path_flag:
+        make_next_absolute = True
+        break
+
+      if flag.startswith(path_flag):
+        path = flag[len(path_flag):]
+        new_flag = path_flag + os.path.join(build_root, path)
+        break
+
+    if new_flag:
+      new_flags.append(new_flag)
+  return new_flags
+
+
+def FindNearest(target, path, build_root):
+  """Looks for a file with a specific name closest to a project path.
+
+  This is similar to the logic used by a version-control system (like git) to
+  find its configuration directory (.git) based on the current directory when a
+  command is invoked.
+
+  Args:
+    target: The file name to search for.
+    path: The directory where the search starts. The search will explore the
+        given directory's ascendants using the parent relationship. Should be an
+        absolute path.
+    build_root: A directory that acts as a fence for the search. If the search
+        reaches this directory, it will not advance to its parent. Should be an
+        absolute path.
+
+  Returns:
+    The path to a file with the desired name. None if the search failed.
+  """
+  candidate = os.path.join(path, target)
+  if os.path.isfile(candidate):
+    return candidate
+
+  if path == build_root:
+    return None
+
+  parent = os.path.dirname(path)
+  if parent == path:
+    return None
+
+  return FindNearest(target, parent, build_root)
+
+
+def FlagsForClangComplete(file_path, build_root):
+  """Reads the .clang_complete flags for a source file.
+
+  Args:
+    file_path: The path to the source file. Should be inside the project. Used
+      to locate the relevant .clang_complete file.
+    build_root: The current directory when running the Clang compiler for this
+        file. Should be an absolute path.
+
+  Returns:
+    A list of strings, where each element is a Clang command-line flag.
+  """
+  clang_complete_path = FindNearest('.clang_complete', file_path, build_root)
+  if clang_complete_path is None:
+    return None
+  clang_complete_flags = open(clang_complete_path, 'r').read().splitlines()
+  return clang_complete_flags
+
+
+def FlagsForFile(filename, **kwargs):
+  """Implements the YouCompleteMe API."""
+
+  # kwargs can be used to pass 'client_data' to the YCM configuration. This
+  # configuration script does not need any extra information, so
+  # pylint: disable=unused-argument
+
+  build_root = DirectoryOfThisScript()
+  file_path = os.path.realpath(filename)
+
+  flags = BASE_FLAGS
+  clang_flags = FlagsForClangComplete(file_path, build_root)
+  if clang_flags:
+    flags += clang_flags
+
+  final_flags = MakeRelativePathsInFlagsAbsolute(flags, build_root)
+
+  return {'flags': final_flags}

AUTHORS

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+# This is the list of CRC32C authors for copyright purposes.
+#
+# This does not necessarily list everyone who has contributed code, since in
+# some cases, their employer may be the copyright holder.  To see the full list
+# of contributors, see the revision history in source control.
+Google Inc.
+
+Fangming Fang <[email protected]>
+Vadim Skipin <[email protected]>