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Export of internal Abseil changes.

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dcff7cc4eb3837d39d1e083cbf1d4f082054cbf6 by Laramie Leavitt <lar@google.com>:

Add default and fallback modes for SaltedSeedSeq::generate().

SeedSeq::generate will often be called with contiguous ranges of uint32_t.
Detect this case and use the currently direct code paths to handle it.
Otherwise use a fallback mechanism which does an additional copy.
PiperOrigin-RevId: 258853656

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59ec88845ac2ee6567c493021b54385940d66762 by Gennadiy Rozental <rogeeff@google.com>:

Internal change

PiperOrigin-RevId: 258822137

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eb2d1ab21f6f94c24c51c1cd3719846be259e8e7 by Abseil Team <absl-team@google.com>:

Add iOS version 11 to the mix of Apple OS versions that have various C++17 header files
but do not support them.

PiperOrigin-RevId: 258820405

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452cea3e13b29797b2c385d7c6da7613d36bdc45 by Gennadiy Rozental <rogeeff@google.com>:

Internal change

PiperOrigin-RevId: 258802436
GitOrigin-RevId: dcff7cc4eb3837d39d1e083cbf1d4f082054cbf6
Change-Id: I2261cb58e142eb15017ef646a56710dd64f06496
This commit is contained in:
Abseil Team 2019-07-18 15:07:49 -07:00 • committed by Derek Mauro
parent 278b26058c
commit f3840bc5e3
5 changed files with 67 additions and 122 deletions
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21
absl/flags/flag.h
View file

@ -216,17 +216,16 @@ void SetFlag(absl::Flag<T>* flag, const V& v) {
// Note: Name of registrar object is not arbitrary. It is used to "grab"
// global name for FLAGS_no<flag_name> symbol, thus preventing the possibility
// of defining two flags with names foo and nofoo.
#define ABSL_FLAG_IMPL(Type, name, default_value, help) \
namespace absl {} \
ABSL_FLAG_IMPL_DECLARE_DEF_VAL_WRAPPER(name, Type, default_value) \
ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, help) \
absl::Flag<Type> FLAGS_##name( \
ABSL_FLAG_IMPL_FLAGNAME(#name), \
&AbslFlagsWrapHelp##name, \
ABSL_FLAG_IMPL_FILENAME(), \
&absl::flags_internal::FlagMarshallingOps<Type>, \
&AbslFlagsInitFlag##name); \
extern bool FLAGS_no##name; \
#define ABSL_FLAG_IMPL(Type, name, default_value, help) \
namespace absl {} \
ABSL_FLAG_IMPL_DECLARE_DEF_VAL_WRAPPER(name, Type, default_value) \
ABSL_FLAG_IMPL_DECLARE_HELP_WRAPPER(name, help) \
ABSL_CONST_INIT absl::Flag<Type> FLAGS_##name( \
ABSL_FLAG_IMPL_FLAGNAME(#name), &AbslFlagsWrapHelp##name, \
ABSL_FLAG_IMPL_FILENAME(), \
&absl::flags_internal::FlagMarshallingOps<Type>, \
&AbslFlagsInitFlag##name); \
extern bool FLAGS_no##name; \
bool FLAGS_no##name = ABSL_FLAG_IMPL_REGISTRAR(Type, FLAGS_##name)
// ABSL_RETIRED_FLAG