[clang-tools-extra] [clang-tidy][NFC] Fix miscellaneous clang-tidy warnings (PR #170424)

[Baranov Victor via cfe-commits]

https://github.com/vbvictor created https://github.com/llvm/llvm-project/pull/170424

None

>From fe6d72e15c9d395f3c3d9fbc48ae40d2e09cdb44 Mon Sep 17 00:00:00 2001
From: Victor Baranov <bar.victor.2002 at gmail.com>
Date: Wed, 3 Dec 2025 08:46:45 +0300
Subject: [PATCH] [clang-tidy][NFC] Fix miscellaneous clang-tidy warnings

---
 .../clang-tidy/bugprone/ExceptionEscapeCheck.cpp              | 3 ++-
 clang-tools-extra/clang-tidy/modernize/UseStdPrintCheck.h     | 2 +-
 .../clang-tidy/readability/IdentifierNamingCheck.cpp          | 4 ++--
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/clang-tools-extra/clang-tidy/bugprone/ExceptionEscapeCheck.cpp b/clang-tools-extra/clang-tidy/bugprone/ExceptionEscapeCheck.cpp
index b7de8395ffa05..1cfb1511fa94e 100644
--- a/clang-tools-extra/clang-tidy/bugprone/ExceptionEscapeCheck.cpp
+++ b/clang-tools-extra/clang-tidy/bugprone/ExceptionEscapeCheck.cpp
@@ -72,7 +72,8 @@ void ExceptionEscapeCheck::storeOptions(ClangTidyOptions::OptionMap &Opts) {
 
 void ExceptionEscapeCheck::registerMatchers(MatchFinder *Finder) {
   auto MatchIf = [](bool Enabled, const auto &Matcher) {
-    ast_matchers::internal::Matcher<FunctionDecl> Nothing = unless(anything());
+    const ast_matchers::internal::Matcher<FunctionDecl> Nothing =
+        unless(anything());
     return Enabled ? Matcher : Nothing;
   };
   Finder->addMatcher(
diff --git a/clang-tools-extra/clang-tidy/modernize/UseStdPrintCheck.h b/clang-tools-extra/clang-tidy/modernize/UseStdPrintCheck.h
index 18cff9aa962b5..7d771c4446cd3 100644
--- a/clang-tools-extra/clang-tidy/modernize/UseStdPrintCheck.h
+++ b/clang-tools-extra/clang-tidy/modernize/UseStdPrintCheck.h
@@ -36,7 +36,7 @@ class UseStdPrintCheck : public ClangTidyCheck {
   }
 
 private:
-  Preprocessor *PP;
+  Preprocessor *PP = nullptr;
   bool StrictMode;
   std::vector<StringRef> PrintfLikeFunctions;
   std::vector<StringRef> FprintfLikeFunctions;
diff --git a/clang-tools-extra/clang-tidy/readability/IdentifierNamingCheck.cpp b/clang-tools-extra/clang-tidy/readability/IdentifierNamingCheck.cpp
index d1583a62a8e5e..79f8437057b23 100644
--- a/clang-tools-extra/clang-tidy/readability/IdentifierNamingCheck.cpp
+++ b/clang-tools-extra/clang-tidy/readability/IdentifierNamingCheck.cpp
@@ -318,8 +318,8 @@ std::string IdentifierNamingCheck::HungarianNotation::getDeclTypeName(
   if (!EOL)
     EOL = Begin + strlen(Begin);
 
-  const char *PosList[] = {strchr(Begin, '='), strchr(Begin, ';'),
-                           strchr(Begin, ','), strchr(Begin, ')'), EOL};
+  const char *const PosList[] = {strchr(Begin, '='), strchr(Begin, ';'),
+                                 strchr(Begin, ','), strchr(Begin, ')'), EOL};
   for (const auto &Pos : PosList) {
     if (Pos > Begin)
       EOL = std::min(EOL, Pos);