Export of internal Abseil changes

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8ebcdcac49f299156a8fd4a77501a258050960e8 by Evan Brown <ezb@google.com>:

In btree_iterator, refactor a bit and update a couple of comments.

PiperOrigin-RevId: 345491436

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421d3b9b5cf484811b9514436ce83f797e109145 by CJ Johnson <johnsoncj@google.com>:

Updates the implementation of InlinedVector to accurately express the value-initialization semantics of the default constructor

PiperOrigin-RevId: 345479151

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88f36a132b2038cb276ed1ad4d9764adb1fc78e6 by CJ Johnson <johnsoncj@google.com>:

Updates the implementation of InlinedVector to accurately express the value-initialization semantics of the default constructor

PiperOrigin-RevId: 345433064

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e55c9b4e7c578c1c4f2df65b1991041c283a97d9 by Chris Kennelly <ckennelly@google.com>:

Internal change

PiperOrigin-RevId: 345388181

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e2284c4e77ff1ebc3009e5bf520524c552226d8a by Chris Kennelly <ckennelly@google.com>:

Internal change

PiperOrigin-RevId: 345357514

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1c496a2ae07ce98578614155d63ef2ea4de5e518 by Chris Kennelly <ckennelly@google.com>:

Mark string lookup functions noexcept.

PiperOrigin-RevId: 345275012
GitOrigin-RevId: 8ebcdcac49f299156a8fd4a77501a258050960e8
Change-Id: I0ccb57d210b543270769e1378de38bf0922f8745

2 files changed, 18 insertions, 9 deletions

diff --git a/absl/strings/match.cc b/absl/strings/match.cc
index 8127cb0c..2d672509 100644
--- a/absl/strings/match.cc
+++ b/absl/strings/match.cc
@@ -19,19 +19,22 @@
 namespace absl {
 ABSL_NAMESPACE_BEGIN
 
-bool EqualsIgnoreCase(absl::string_view piece1, absl::string_view piece2) {
+bool EqualsIgnoreCase(absl::string_view piece1,
+                      absl::string_view piece2) noexcept {
   return (piece1.size() == piece2.size() &&
           0 == absl::strings_internal::memcasecmp(piece1.data(), piece2.data(),
                                                   piece1.size()));
   // memcasecmp uses absl::ascii_tolower().
 }
 
-bool StartsWithIgnoreCase(absl::string_view text, absl::string_view prefix) {
+bool StartsWithIgnoreCase(absl::string_view text,
+                          absl::string_view prefix) noexcept {
   return (text.size() >= prefix.size()) &&
          EqualsIgnoreCase(text.substr(0, prefix.size()), prefix);
 }
 
-bool EndsWithIgnoreCase(absl::string_view text, absl::string_view suffix) {
+bool EndsWithIgnoreCase(absl::string_view text,
+                        absl::string_view suffix) noexcept {
   return (text.size() >= suffix.size()) &&
          EqualsIgnoreCase(text.substr(text.size() - suffix.size()), suffix);
 }
diff --git a/absl/strings/match.h b/absl/strings/match.h
index 90fca98a..6c822c26 100644
--- a/absl/strings/match.h
+++ b/absl/strings/match.h
@@ -43,14 +43,16 @@ ABSL_NAMESPACE_BEGIN
 // StrContains()
 //
 // Returns whether a given string `haystack` contains the substring `needle`.
-inline bool StrContains(absl::string_view haystack, absl::string_view needle) {
+inline bool StrContains(absl::string_view haystack,
+                        absl::string_view needle) noexcept {
   return haystack.find(needle, 0) != haystack.npos;
 }
 
 // StartsWith()
 //
 // Returns whether a given string `text` begins with `prefix`.
-inline bool StartsWith(absl::string_view text, absl::string_view prefix) {
+inline bool StartsWith(absl::string_view text,
+                       absl::string_view prefix) noexcept {
   return prefix.empty() ||
          (text.size() >= prefix.size() &&
           memcmp(text.data(), prefix.data(), prefix.size()) == 0);
@@ -59,7 +61,8 @@ inline bool StartsWith(absl::string_view text, absl::string_view prefix) {
 // EndsWith()
 //
 // Returns whether a given string `text` ends with `suffix`.
-inline bool EndsWith(absl::string_view text, absl::string_view suffix) {
+inline bool EndsWith(absl::string_view text,
+                     absl::string_view suffix) noexcept {
   return suffix.empty() ||
          (text.size() >= suffix.size() &&
           memcmp(text.data() + (text.size() - suffix.size()), suffix.data(),
@@ -70,19 +73,22 @@ inline bool EndsWith(absl::string_view text, absl::string_view suffix) {
 //
 // Returns whether given ASCII strings `piece1` and `piece2` are equal, ignoring
 // case in the comparison.
-bool EqualsIgnoreCase(absl::string_view piece1, absl::string_view piece2);
+bool EqualsIgnoreCase(absl::string_view piece1,
+                      absl::string_view piece2) noexcept;
 
 // StartsWithIgnoreCase()
 //
 // Returns whether a given ASCII string `text` starts with `prefix`,
 // ignoring case in the comparison.
-bool StartsWithIgnoreCase(absl::string_view text, absl::string_view prefix);
+bool StartsWithIgnoreCase(absl::string_view text,
+                          absl::string_view prefix) noexcept;
 
 // EndsWithIgnoreCase()
 //
 // Returns whether a given ASCII string `text` ends with `suffix`, ignoring
 // case in the comparison.
-bool EndsWithIgnoreCase(absl::string_view text, absl::string_view suffix);
+bool EndsWithIgnoreCase(absl::string_view text,
+                        absl::string_view suffix) noexcept;
 
 ABSL_NAMESPACE_END
 }  // namespace absl