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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

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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
This commit is contained in:
Abseil Team 2019-12-12 10:36:03 -08:00 • committed by Matt Calabrese
parent 1e39f8626a
commit 12bc53e031
339 changed files with 948 additions and 82 deletions
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6
absl/types/variant.h
View file

@ -50,6 +50,7 @@
#include <variant> // IWYU pragma: export
namespace absl {
ABSL_NAMESPACE_BEGIN
using std::bad_variant_access;
using std::get;
using std::get_if;
@ -62,6 +63,7 @@ using std::variant_npos;
using std::variant_size;
using std::variant_size_v;
using std::visit;
ABSL_NAMESPACE_END
} // namespace absl
#else // ABSL_USES_STD_VARIANT
@ -77,6 +79,7 @@ using std::visit;
#include "absl/types/internal/variant.h"
namespace absl {
ABSL_NAMESPACE_BEGIN
// -----------------------------------------------------------------------------
// absl::variant
@ -795,6 +798,7 @@ operator>=(const variant<Types...>& a, const variant<Types...>& b) {
a.index());
}
ABSL_NAMESPACE_END
} // namespace absl
namespace std {
@ -815,6 +819,7 @@ struct hash<absl::variant<T...>>
#endif // ABSL_USES_STD_VARIANT
namespace absl {
ABSL_NAMESPACE_BEGIN
namespace variant_internal {
// Helper visitor for converting a variant<Ts...>` into another type (mostly
@ -850,6 +855,7 @@ To ConvertVariantTo(Variant&& variant) {
std::forward<Variant>(variant));
}
ABSL_NAMESPACE_END
} // namespace absl
#endif // ABSL_TYPES_VARIANT_H_