Export of internal Abseil changes

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d74f30ef0da7139c30a24eb6c1776bc0c257e642 by Derek Mauro <dmauro@google.com>:

Internal change

PiperOrigin-RevId: 375779441

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25e33cde30d78dbafcb81ee3ce77c3d70c74db5a by Abseil Team <absl-team@google.com>:

Internal change

PiperOrigin-RevId: 375520720

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46857d17d4dbc6fbd13a27dd82e14ec814dd117a by Samuel Benzaquen <sbenza@google.com>:

Add an explicit template parameter barrier to absl::HashOf.

PiperOrigin-RevId: 375103300

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cf2bf52b9a425b0360ed1f46778f0ef1326a3658 by Abseil Team <absl-team@google.com>:

Improve string_view API compliance with C++17 std::basic_string_view.

This adds missing overloads, default values, and constexpr specifiers.

PiperOrigin-RevId: 374885658

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41e55166dc5bd3ed7bce567c400781585d55e1ce by Derek Mauro <dmauro@google.com>:

Update CI to GCC 11.1, Bazel 4.0.0, CMake 3.20.2, and
LLVM git:7bcc0a1e399d461af7ec013ff33bc330a2de6641

PiperOrigin-RevId: 374858288
GitOrigin-RevId: d74f30ef0da7139c30a24eb6c1776bc0c257e642
Change-Id: I657c815c83522b030495ff54ca327e7012ed151e

1 files changed, 16 insertions, 21 deletions

diff --git a/absl/strings/string_view.cc b/absl/strings/string_view.cc
index c5f5de93..d596e08c 100644
--- a/absl/strings/string_view.cc
+++ b/absl/strings/string_view.cc
@@ -78,8 +78,8 @@ std::ostream& operator<<(std::ostream& o, string_view piece) {
   return o;
 }
 
-string_view::size_type string_view::find(string_view s, size_type pos) const
-    noexcept {
+string_view::size_type string_view::find(string_view s,
+                                         size_type pos) const noexcept {
   if (empty() || pos > length_) {
     if (empty() && pos == 0 && s.empty()) return 0;
     return npos;
@@ -98,8 +98,8 @@ string_view::size_type string_view::find(char c, size_type pos) const noexcept {
   return result != nullptr ? result - ptr_ : npos;
 }
 
-string_view::size_type string_view::rfind(string_view s, size_type pos) const
-    noexcept {
+string_view::size_type string_view::rfind(string_view s,
+                                          size_type pos) const noexcept {
   if (length_ < s.length_) return npos;
   if (s.empty()) return std::min(length_, pos);
   const char* last = ptr_ + std::min(length_ - s.length_, pos) + s.length_;
@@ -108,8 +108,8 @@ string_view::size_type string_view::rfind(string_view s, size_type pos) const
 }
 
 // Search range is [0..pos] inclusive.  If pos == npos, search everything.
-string_view::size_type string_view::rfind(char c, size_type pos) const
-    noexcept {
+string_view::size_type string_view::rfind(char c,
+                                          size_type pos) const noexcept {
   // Note: memrchr() is not available on Windows.
   if (empty()) return npos;
   for (size_type i = std::min(pos, length_ - 1);; --i) {
@@ -121,9 +121,8 @@ string_view::size_type string_view::rfind(char c, size_type pos) const
   return npos;
 }
 
-string_view::size_type string_view::find_first_of(string_view s,
-                                                  size_type pos) const
-    noexcept {
+string_view::size_type string_view::find_first_of(
+    string_view s, size_type pos) const noexcept {
   if (empty() || s.empty()) {
     return npos;
   }
@@ -138,9 +137,8 @@ string_view::size_type string_view::find_first_of(string_view s,
   return npos;
 }
 
-string_view::size_type string_view::find_first_not_of(string_view s,
-                                                      size_type pos) const
-    noexcept {
+string_view::size_type string_view::find_first_not_of(
+    string_view s, size_type pos) const noexcept {
   if (empty()) return npos;
   // Avoid the cost of LookupTable() for a single-character search.
   if (s.length_ == 1) return find_first_not_of(s.ptr_[0], pos);
@@ -153,9 +151,8 @@ string_view::size_type string_view::find_first_not_of(string_view s,
   return npos;
 }
 
-string_view::size_type string_view::find_first_not_of(char c,
-                                                      size_type pos) const
-    noexcept {
+string_view::size_type string_view::find_first_not_of(
+    char c, size_type pos) const noexcept {
   if (empty()) return npos;
   for (; pos < length_; ++pos) {
     if (ptr_[pos] != c) {
@@ -180,9 +177,8 @@ string_view::size_type string_view::find_last_of(string_view s,
   return npos;
 }
 
-string_view::size_type string_view::find_last_not_of(string_view s,
-                                                     size_type pos) const
-    noexcept {
+string_view::size_type string_view::find_last_not_of(
+    string_view s, size_type pos) const noexcept {
   if (empty()) return npos;
   size_type i = std::min(pos, length_ - 1);
   if (s.empty()) return i;
@@ -198,9 +194,8 @@ string_view::size_type string_view::find_last_not_of(string_view s,
   return npos;
 }
 
-string_view::size_type string_view::find_last_not_of(char c,
-                                                     size_type pos) const
-    noexcept {
+string_view::size_type string_view::find_last_not_of(
+    char c, size_type pos) const noexcept {
   if (empty()) return npos;
   size_type i = std::min(pos, length_ - 1);
   for (;; --i) {