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Export of internal Abseil changes.

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--
f9f068aa8a260dc576398e47b8e4540902e41358 by Derek Mauro <dmauro@google.com>:

Fix test string with embedded NUL. Currently parses as octal.

PiperOrigin-RevId: 237088193

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d271ffdd3f450f817f6d30e98ff39d439aaf3a98 by Abseil Team <absl-team@google.com>:

Make symbolizer examine any mapping with read+exec permission regardless of 'w' bit.

PiperOrigin-RevId: 237056461

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af315f8306d36a7367a452fd0b58cafdbf20719d by Abseil Team <absl-team@google.com>:

Switch comments referencing base:: CondVar and Mutex to absl::.

PiperOrigin-RevId: 236917884

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c624d5d1c0bdb917bff5e651ba40599472f84e0e by Gennadiy Rozental <rogeeff@google.com>:

Internal change

PiperOrigin-RevId: 236898300

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3cdc82429af964846d1152f49148abc61d196a4b by Samuel Benzaquen <sbenza@google.com>:

Make the `long double` overload if AbslHashValue a template to avoid invalid
conversions with implicit operators.

This overload was never meant to capture anything other than `long double` and any current caller to it that wasn't a `long double` is potentially a bug.
In particular, any type with an implicit `bool` conversion is calling this
overload instead of trying to find a hash<> specialization, thus causing
pretty bad hash behavior.

PiperOrigin-RevId: 236877073
GitOrigin-RevId: f9f068aa8a260dc576398e47b8e4540902e41358
Change-Id: If9cc008dd814f0ca06ed881f612c06575f1f7137
This commit is contained in:
Abseil Team 2019-03-06 11:36:55 -08:00 • committed by Derek Mauro
parent 9fdf5e5b80
commit febc5ee6a9
70 changed files with 483 additions and 410 deletions
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18
absl/strings/str_cat.h
View file

@ -245,6 +245,7 @@ class AlphaNum {
AlphaNum(const char* c_str) : piece_(c_str) {} // NOLINT(runtime/explicit)
AlphaNum(absl::string_view pc) : piece_(pc) {} // NOLINT(runtime/explicit)
template <typename Allocator>
AlphaNum( // NOLINT(runtime/explicit)
const std::basic_string<char, std::char_traits<char>, Allocator>& str)
@ -317,16 +318,15 @@ ABSL_MUST_USE_RESULT inline std::string StrCat(const AlphaNum& a) {
ABSL_MUST_USE_RESULT std::string StrCat(const AlphaNum& a, const AlphaNum& b);
ABSL_MUST_USE_RESULT std::string StrCat(const AlphaNum& a, const AlphaNum& b,
const AlphaNum& c);
const AlphaNum& c);
ABSL_MUST_USE_RESULT std::string StrCat(const AlphaNum& a, const AlphaNum& b,
const AlphaNum& c, const AlphaNum& d);
const AlphaNum& c, const AlphaNum& d);
// Support 5 or more arguments
template <typename... AV>
ABSL_MUST_USE_RESULT inline std::string StrCat(const AlphaNum& a, const AlphaNum& b,
const AlphaNum& c, const AlphaNum& d,
const AlphaNum& e,
const AV&... args) {
ABSL_MUST_USE_RESULT inline std::string StrCat(
const AlphaNum& a, const AlphaNum& b, const AlphaNum& c, const AlphaNum& d,
const AlphaNum& e, const AV&... args) {
return strings_internal::CatPieces(
{a.Piece(), b.Piece(), c.Piece(), d.Piece(), e.Piece(),
static_cast<const AlphaNum&>(args).Piece()...});
@ -344,18 +344,18 @@ ABSL_MUST_USE_RESULT inline std::string StrCat(const AlphaNum& a, const AlphaNum
// not try to check each of its input arguments to be sure that they are not
// a subset of the string being appended to. That is, while this will work:
//
// string s = "foo";
// std::string s = "foo";
// s += s;
//
// This output is undefined:
//
// string s = "foo";
// std::string s = "foo";
// StrAppend(&s, s);
//
// This output is undefined as well, since `absl::string_view` does not own its
// data:
//
// string s = "foobar";
// std::string s = "foobar";
// absl::string_view p = s;
// StrAppend(&s, p);