Update protobuf to 3.18.1

ref:4846abb21711ea0dc148d4c5df7b5edd3d1bdc69

1 files changed, 10 insertions, 12 deletions

diff --git a/contrib/libs/protoc/src/google/protobuf/compiler/parser.cc b/contrib/libs/protoc/src/google/protobuf/compiler/parser.cc
index 41d70aa255f..fa3dffbdb6c 100644
--- a/contrib/libs/protoc/src/google/protobuf/compiler/parser.cc
+++ b/contrib/libs/protoc/src/google/protobuf/compiler/parser.cc
@@ -97,19 +97,19 @@ TProtoStringType MapEntryName(const TProtoStringType& field_name) {
   static const char kSuffix[] = "Entry";
   result.reserve(field_name.size() + sizeof(kSuffix));
   bool cap_next = true;
-  for (int i = 0; i < field_name.size(); ++i) {
-    if (field_name[i] == '_') {
+  for (const char field_name_char : field_name) {
+    if (field_name_char == '_') {
       cap_next = true;
     } else if (cap_next) {
       // Note: Do not use ctype.h due to locales.
-      if ('a' <= field_name[i] && field_name[i] <= 'z') {
-        result.push_back(field_name[i] - 'a' + 'A');
+      if ('a' <= field_name_char && field_name_char <= 'z') {
+        result.push_back(field_name_char - 'a' + 'A');
       } else {
-        result.push_back(field_name[i]);
+        result.push_back(field_name_char);
       }
       cap_next = false;
     } else {
-      result.push_back(field_name[i]);
+      result.push_back(field_name_char);
     }
   }
   result.append(kSuffix);
@@ -131,8 +131,8 @@ bool IsUpperCamelCase(const TProtoStringType& name) {
     return false;
   }
   // Must not contains underscore.
-  for (int i = 1; i < name.length(); i++) {
-    if (name[i] == '_') {
+  for (const char c : name) {
+    if (c == '_') {
       return false;
     }
   }
@@ -140,8 +140,7 @@ bool IsUpperCamelCase(const TProtoStringType& name) {
 }
 
 bool IsUpperUnderscore(const TProtoStringType& name) {
-  for (int i = 0; i < name.length(); i++) {
-    const char c = name[i];
+  for (const char c : name) {
     if (!IsUppercase(c) && c != '_' && !IsNumber(c)) {
       return false;
     }
@@ -150,8 +149,7 @@ bool IsUpperUnderscore(const TProtoStringType& name) {
 }
 
 bool IsLowerUnderscore(const TProtoStringType& name) {
-  for (int i = 0; i < name.length(); i++) {
-    const char c = name[i];
+  for (const char c : name) {
     if (!IsLowercase(c) && c != '_' && !IsNumber(c)) {
       return false;
     }