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Export of internal Abseil changes

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--
47f13ea42ae272c995b1cd5073a45e046fa325eb by Matthew Brown <matthewbr@google.com>:

absl::StrFormat: Centralize FormatConversionCharSet vs FormatConversionSpec checking
 - Move it into a central location, rather than requiring individual overloads to
   validate.

PiperOrigin-RevId: 310583805

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a567c8fc8032031d551d6b457755851f442e65ad by Gennadiy Rozental <rogeeff@google.com>:

Internal change

PiperOrigin-RevId: 310427635

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49848f7fab9b0f528d33f60cbccf688e2ea68afa by Gennadiy Rozental <rogeeff@google.com>:

Make Get/Set private methods of absl::Flag<T>.

PiperOrigin-RevId: 310413908
GitOrigin-RevId: 47f13ea42ae272c995b1cd5073a45e046fa325eb
Change-Id: I6530c754731c1a9463877561fa61786460ed60af
This commit is contained in:
Abseil Team 2020-05-08 10:36:00 -07:00 • committed by vslashg
parent a35ef8a62c
commit c45d1c09d5
8 changed files with 148 additions and 36 deletions
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17
absl/strings/internal/str_format/extension.h
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@ -327,12 +327,16 @@ constexpr FormatConversionCharSet FormatConversionCharSetUnion(
static_cast<uint64_t>(FormatConversionCharSetUnion(rest...)));
}
constexpr uint64_t FormatConversionCharToConvInt(FormatConversionChar c) {
return uint64_t{1} << (1 + static_cast<uint8_t>(c));
}
constexpr uint64_t FormatConversionCharToConvInt(char conv) {
return
#define ABSL_INTERNAL_CHAR_SET_CASE(c) \
conv == #c[0] ? (uint64_t{1} << (1 + static_cast<uint8_t>( \
FormatConversionCharInternal::c))) \
:
#define ABSL_INTERNAL_CHAR_SET_CASE(c) \
conv == #c[0] \
? FormatConversionCharToConvInt(FormatConversionCharInternal::c) \
:
ABSL_INTERNAL_CONVERSION_CHARS_EXPAND_(ABSL_INTERNAL_CHAR_SET_CASE, )
#undef ABSL_INTERNAL_CHAR_SET_CASE
conv == '*'
@ -406,6 +410,11 @@ constexpr bool Contains(FormatConversionCharSet set,
static_cast<uint64_t>(c);
}
// Checks whether all the characters in `c` are contained in `set`
constexpr bool Contains(FormatConversionCharSet set, FormatConversionChar c) {
return (static_cast<uint64_t>(set) & FormatConversionCharToConvInt(c)) != 0;
}
// Return capacity - used, clipped to a minimum of 0.
inline size_t Excess(size_t used, size_t capacity) {
return used < capacity ? capacity - used : 0;