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24162e64040e89f174531fa78fc0ff43c3a67da4 by Abseil Team <absl-team@google.com>:

Make ABSL_RETIRED_FLAG behave consistently with ABSL_FLAG.

Before the change:
ABSL_RETIRED_FLAG does not compile when there are competing ctors in the type, even when ABSL_FLAG does.

After the change:
ABSL_RETIRED_FLAG compiles when ABSL_FLAG does.

PiperOrigin-RevId: 286437395

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870d4cb4d114813e9cefe30d26d020b0fdcdc4b4 by Tom Manshreck <shreck@google.com>:

Add docs on bind_front

PiperOrigin-RevId: 286433540

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b0c328bd9bb64e0382f942f93b85054229dafeac by Tom Manshreck <shreck@google.com>:

Specify the format for LogSeverity flags

PiperOrigin-RevId: 286402811
GitOrigin-RevId: 24162e64040e89f174531fa78fc0ff43c3a67da4
Change-Id: I89785145d049fee49c6b9cf3357893ece9a6231c
This commit is contained in:
Abseil Team 2019-12-19 12:03:35 -08:00 • committed by CJ Johnson
parent 7bd1935dcb
commit ad904b6cd3
5 changed files with 127 additions and 34 deletions
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12
absl/flags/flag.h
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@ -384,11 +384,19 @@ ABSL_NAMESPACE_END
//
// `default_value` is only used as a double check on the type. `explanation` is
// unused.
//
// ABSL_RETIRED_FLAG support omitting the default value for default
// constructible value type, so that users can delete the code generatring this
// value.
//
// TODO(rogeeff): Return an anonymous struct instead of bool, and place it into
// the unnamed namespace.
#define ABSL_RETIRED_FLAG(type, flagname, default_value, explanation) \
ABSL_ATTRIBUTE_UNUSED static const bool ignored_##flagname = \
([] { return type(default_value); }, \
ABSL_ATTRIBUTE_UNUSED static const bool ignored_##flagname = \
([] { \
return absl::flags_internal::MakeFromDefaultValueOrEmpty<type>( \
default_value); \
}, \
absl::flags_internal::RetiredFlag<type>(#flagname))
#endif // ABSL_FLAGS_FLAG_H_