Export of internal Abseil changes.

--
07575526242a8e1275ac4223a3d2822795f46569 by CJ Johnson <johnsoncj@google.com>:

Comment cleanup on InlinedVector

PiperOrigin-RevId: 221322176

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49a5e643f85e34d53c41f5e6cc33357c55c9115d by Matt Kulukundis <kfm@google.com>:

Internal cleanup

PiperOrigin-RevId: 221309185

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bb35be87ec9c74244b7d902e7e7d2d33ab139d76 by Abseil Team <absl-team@google.com>:

Fix typo in comment.

PiperOrigin-RevId: 221145354

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afd4d7c106919708004e06aeea068a57c28aec44 by Derek Mauro <dmauro@google.com>:

Update the debugging log message in CallOnceImpl()

PiperOrigin-RevId: 221103254

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0b9dace8b88113777bf26a6d38f9bc0bcaf053a1 by Abseil Team <absl-team@google.com>:

Workaround an MSVC 2015 bug in compile-time initialization.

PiperOrigin-RevId: 220871483

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ea0a3854511ed26beab827e5a5113766b334db86 by Marek Gilbert <mcg@google.com>:

Fix ABSL_HAVE_THREAD_LOCAL when compiling for iOS 8 with Xcode 10.

Xcode 10 has moved the check for thread_local to a link time, so
clang reports __has_feature(cxx_thread_local) but then linking fails
with messages like this:

ld: targeted OS version does not support use of thread local variables
PiperOrigin-RevId: 220815885

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485b6876c158c3dcf37eb32d7e512242d5d4ecc6 by Greg Falcon <gfalcon@google.com>:

Make the absl::c_set_xxxx() algorithms refuse to compile when passed an unordered collection from std:: or absl::.

These algorithms operate on sorted sequences; passing an unordered container to them is nearly certainly a bug.  This change is technically an API break, but it only breaks incorrect code.

We could try to be more clever and detect unordered collections from other libraries, but false positives will break legal code, and this would constitute an API break Abseil cannot afford.

PiperOrigin-RevId: 220794190

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c47cff7f9cc70a4c1604eee0131af552f40e46d6 by Jon Cohen <cohenjon@google.com>:

MSVC 2017's STL throws a Structured Exception (not a C++ exception, essentially equivalent to SIGSEGV) when variant::emplace calls a throwing constructor when using the debug multithreaded MSVC runtime DLL.  This manifests in dbg mode in Bazel builds.  Disable tests which trigger this bug.

It's impossible to specifically pull out MSVC 2017 -dbg modes because there's no way for Bazel to know when version of MSVC is being used -- you tell Bazel the directory where the MSVC tools live, not which version of MSVC tools to use.  Thus the best we can do is switch on _DEBUG, which is set whenever the debug runtime is selected with the /MDd build flag, as in Bazel -dbg modes.  See https://msdn.microsoft.com/en-us/library/b0084kay.aspx ctrl-f "_DEBUG"

PiperOrigin-RevId: 220706161

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43993d4af309d92f4ebff38391dcc245f154ecc7 by Shaindel Schwartz <shaindel@google.com>:

Internal change

PiperOrigin-RevId: 220688429

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2448802972dcc261af153af464f2b022ef54a2a9 by Abseil Team <absl-team@google.com>:

Speed up operator* for uint128 in WIN64.

PiperOrigin-RevId: 220678790

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7b376403dd05ba10152fb52e40b29d8af79b58bb by Abseil Team <absl-team@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 220654834

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ae08af58111c3f838b8d4de25f501c3559c86002 by Abseil Team <absl-team@google.com>:

CMake: Add absl_cc_test function

PiperOrigin-RevId: 220603940
GitOrigin-RevId: 07575526242a8e1275ac4223a3d2822795f46569
Change-Id: Iba7f53eb394c8a9de564582a976793f9bb0596d9

1 files changed, 76 insertions, 7 deletions

diff --git a/CMake/AbseilHelpers.cmake b/CMake/AbseilHelpers.cmake
index d48703656393..3b9148ea72bd 100644
--- a/CMake/AbseilHelpers.cmake
+++ b/CMake/AbseilHelpers.cmake
@@ -62,7 +62,6 @@ function(absl_library)
   endif()
 endfunction()
 
-#
 # CMake function to imitate Bazel's cc_library rule.
 #
 # Parameters:
@@ -77,14 +76,13 @@ endfunction()
 # TESTONLY: When added, this target will only be built if user passes -DABSL_RUN_TESTS=ON to CMake.
 #
 # Note:
-#
 # By default, absl_cc_library will always create a library named absl_internal_${NAME},
 # which means other targets can only depend this library as absl_internal_${NAME}, not ${NAME}.
 # This is to reduce namespace pollution.
 #
 # absl_cc_library(
 #   NAME
-#     awesome_lib
+#     awesome
 #   HDRS
 #     "a.h"
 #   SRCS
@@ -96,7 +94,7 @@ endfunction()
 #   SRCS
 #     "b.cc"
 #   DEPS
-#     absl_internal_awesome_lib # not "awesome_lib"!
+#     absl_internal_awesome # not "awesome"!
 # )
 #
 # If PUBLIC is set, absl_cc_library will instead create a target named
@@ -112,7 +110,6 @@ endfunction()
 # User can then use the library as absl::main_lib (although absl_main_lib is defined too).
 #
 # TODO: Implement "ALWAYSLINK"
-
 function(absl_cc_library)
   cmake_parse_arguments(ABSL_CC_LIB
     "DISABLE_INSTALL;PUBLIC;TESTONLY"
@@ -153,7 +150,8 @@ function(absl_cc_library)
     else()
       # Generating header-only library
       add_library(${_NAME} INTERFACE)
-      target_include_directories(${_NAME} INTERFACE ${ABSL_COMMON_INCLUDE_DIRS})
+      target_include_directories(${_NAME}
+        INTERFACE ${ABSL_COMMON_INCLUDE_DIRS})
       target_link_libraries(${_NAME}
         INTERFACE ${ABSL_CC_LIB_DEPS} ${ABSL_CC_LIB_LINKOPTS}
       )
@@ -166,6 +164,78 @@ function(absl_cc_library)
   endif()
 endfunction()
 
+# absl_cc_test()
+#
+# CMake function to imitate Bazel's cc_test rule.
+#
+# Parameters:
+# NAME: name of target (see Usage below)
+# SRCS: List of source files for the binary
+# DEPS: List of other libraries to be linked in to the binary targets
+# COPTS: List of private compile options
+# DEFINES: List of public defines
+# LINKOPTS: List of link options
+#
+# Note:
+# By default, absl_cc_test will always create a binary named absl_${NAME}.
+# This will also add it to ctest list as absl_${NAME}.
+#
+# Usage:
+# absl_cc_library(
+#   NAME
+#     awesome
+#   HDRS
+#     "a.h"
+#   SRCS
+#     "a.cc"
+#   PUBLIC
+# )
+#
+# absl_cc_test(
+#   NAME
+#     awesome_test
+#   SRCS
+#     "awesome_test.cc"
+#   DEPS
+#     absl::awesome
+#     gmock
+#     gtest_main
+# )
+function(absl_cc_test)
+  if(NOT ABSL_RUN_TESTS)
+    return()
+  endif()
+
+  cmake_parse_arguments(ABSL_CC_TEST
+    ""
+    "NAME"
+    "SRCS;COPTS;DEFINES;LINKOPTS;DEPS"
+    ${ARGN}
+  )
+
+  set(_NAME "absl_${ABSL_CC_TEST_NAME}")
+  add_executable(${_NAME} "")
+  target_sources(${_NAME} PRIVATE ${ABSL_CC_TEST_SRCS})
+  target_include_directories(${_NAME}
+    PUBLIC ${ABSL_COMMON_INCLUDE_DIRS}
+    PRIVATE ${GMOCK_INCLUDE_DIRS} ${GTEST_INCLUDE_DIRS}
+  )
+  target_compile_definitions(${_NAME}
+    PUBLIC ${ABSL_CC_TEST_DEFINES}
+  )
+  target_compile_options(${_NAME}
+    PRIVATE ${ABSL_CC_TEST_COPTS}
+  )
+  target_link_libraries(${_NAME}
+    PUBLIC ${ABSL_CC_TEST_DEPS}
+    PRIVATE ${ABSL_CC_TEST_LINKOPTS}
+  )
+  # Add all Abseil targets to a a folder in the IDE for organization.
+  set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER})
+
+  add_test(NAME ${_NAME} COMMAND ${_NAME})
+endfunction()
+
 #
 # header only virtual target creation
 #
@@ -211,7 +281,6 @@ function(absl_header_library)
 
 endfunction()
 
-
 #
 # create an abseil unit_test and add it to the executed test list
 #