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

1 files changed, 35 insertions, 29 deletions

diff --git a/absl/strings/escaping_test.cc b/absl/strings/escaping_test.cc
index 9dc27f3..77846dd 100644
--- a/absl/strings/escaping_test.cc
+++ b/absl/strings/escaping_test.cc
@@ -36,18 +36,19 @@ struct epair {
 
 TEST(CEscape, EscapeAndUnescape) {
   const std::string inputs[] = {
-    std::string("foo\nxx\r\b\0023"),
-    std::string(""),
-    std::string("abc"),
-    std::string("\1chad_rules"),
-    std::string("\1arnar_drools"),
-    std::string("xxxx\r\t'\"\\"),
-    std::string("\0xx\0", 4),
-    std::string("\x01\x31"),
-    std::string("abc\xb\x42\141bc"),
-    std::string("123\1\x31\x32\x33"),
-    std::string("\xc1\xca\x1b\x62\x19o\xcc\x04"),
-    std::string("\\\"\xe8\xb0\xb7\xe6\xad\x8c\\\" is Google\\\'s Chinese name"),
+      std::string("foo\nxx\r\b\0023"),
+      std::string(""),
+      std::string("abc"),
+      std::string("\1chad_rules"),
+      std::string("\1arnar_drools"),
+      std::string("xxxx\r\t'\"\\"),
+      std::string("\0xx\0", 4),
+      std::string("\x01\x31"),
+      std::string("abc\xb\x42\141bc"),
+      std::string("123\1\x31\x32\x33"),
+      std::string("\xc1\xca\x1b\x62\x19o\xcc\x04"),
+      std::string(
+          "\\\"\xe8\xb0\xb7\xe6\xad\x8c\\\" is Google\\\'s Chinese name"),
   };
   // Do this twice, once for octal escapes and once for hex escapes.
   for (int kind = 0; kind < 4; kind++) {
@@ -159,15 +160,14 @@ TEST(Unescape, BasicFunction) {
     EXPECT_TRUE(absl::CUnescape(val.escaped, &out));
     EXPECT_EQ(out, val.unescaped);
   }
-  std::string bad[] =
-     {"\\u1",         // too short
-      "\\U1",         // too short
-      "\\Uffffff",    // exceeds 0x10ffff (largest Unicode)
-      "\\U00110000",  // exceeds 0x10ffff (largest Unicode)
-      "\\uD835",      // surrogate character (D800-DFFF)
-      "\\U0000DD04",  // surrogate character (D800-DFFF)
-      "\\777",        // exceeds 0xff
-      "\\xABCD"};     // exceeds 0xff
+  std::string bad[] = {"\\u1",         // too short
+                       "\\U1",         // too short
+                       "\\Uffffff",    // exceeds 0x10ffff (largest Unicode)
+                       "\\U00110000",  // exceeds 0x10ffff (largest Unicode)
+                       "\\uD835",      // surrogate character (D800-DFFF)
+                       "\\U0000DD04",  // surrogate character (D800-DFFF)
+                       "\\777",        // exceeds 0xff
+                       "\\xABCD"};     // exceeds 0xff
   for (const std::string& e : bad) {
     std::string error;
     std::string out;
@@ -258,9 +258,11 @@ TEST_F(CUnescapeTest, UnescapesMultipleOctalNulls) {
   // All escapes, including newlines and null escapes, should have been
   // converted to the equivalent characters.
   EXPECT_EQ(std::string("\0\n"
-                   "0\n"
-                   "\0\n"
-                   "\0", 7), result_string_);
+                        "0\n"
+                        "\0\n"
+                        "\0",
+                        7),
+            result_string_);
 }
 
 
@@ -268,17 +270,21 @@ TEST_F(CUnescapeTest, UnescapesMultipleHexNulls) {
   std::string original_string(kStringWithMultipleHexNulls);
   EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
   EXPECT_EQ(std::string("\0\n"
-                   "0\n"
-                   "\0\n"
-                   "\0", 7), result_string_);
+                        "0\n"
+                        "\0\n"
+                        "\0",
+                        7),
+            result_string_);
 }
 
 TEST_F(CUnescapeTest, UnescapesMultipleUnicodeNulls) {
   std::string original_string(kStringWithMultipleUnicodeNulls);
   EXPECT_TRUE(absl::CUnescape(original_string, &result_string_));
   EXPECT_EQ(std::string("\0\n"
-                   "0\n"
-                   "\0", 5), result_string_);
+                        "0\n"
+                        "\0",
+                        5),
+            result_string_);
 }
 
 static struct {