[PATCH] D129420: [clang-tidy] Initialize boolean variables with 'false' in cppcoreguidelines-init-variables' fix-it

Danny Mösch via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Sat Jul 9 05:50:05 PDT 2022


This revision was automatically updated to reflect the committed changes.
Closed by commit rG33e212954430: [clang-tidy] Initialize boolean variables with `false` in cppcoreguidelines… (authored by SimplyDanny).

Changed prior to commit:
  https://reviews.llvm.org/D129420?vs=443429&id=443434#toc

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D129420/new/

https://reviews.llvm.org/D129420

Files:
  clang-tools-extra/clang-tidy/cppcoreguidelines/InitVariablesCheck.cpp
  clang-tools-extra/docs/ReleaseNotes.rst
  clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/init-variables.cpp


Index: clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/init-variables.cpp
===================================================================
--- clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/init-variables.cpp
+++ clang-tools-extra/test/clang-tidy/checkers/cppcoreguidelines/init-variables.cpp
@@ -64,7 +64,7 @@
 
   bool b;
   // CHECK-MESSAGES: :[[@LINE-1]]:8: warning: variable 'b' is not initialized [cppcoreguidelines-init-variables]
-  // CHECK-FIXES: {{^}}  bool b = 0;{{$}}
+  // CHECK-FIXES: {{^}}  bool b = false;{{$}}
   bool bval = true;
 
   const char *ptr;
Index: clang-tools-extra/docs/ReleaseNotes.rst
===================================================================
--- clang-tools-extra/docs/ReleaseNotes.rst
+++ clang-tools-extra/docs/ReleaseNotes.rst
@@ -247,6 +247,10 @@
   <clang-tidy/checks/readability/simplify-boolean-expr>` to simplify expressions
   using DeMorgan's Theorem.
 
+- Made the fix-it of :doc:`cppcoreguidelines-init-variables
+  <clang-tidy/checks/cppcoreguidelines/init-variables>` use ``false`` to initialize
+  boolean variables.
+
 Removed checks
 ^^^^^^^^^^^^^^
 
Index: clang-tools-extra/clang-tidy/cppcoreguidelines/InitVariablesCheck.cpp
===================================================================
--- clang-tools-extra/clang-tidy/cppcoreguidelines/InitVariablesCheck.cpp
+++ clang-tools-extra/clang-tidy/cppcoreguidelines/InitVariablesCheck.cpp
@@ -84,6 +84,8 @@
 
   if (TypePtr->isEnumeralType())
     InitializationString = nullptr;
+  else if (TypePtr->isBooleanType())
+    InitializationString = " = false";
   else if (TypePtr->isIntegerType())
     InitializationString = " = 0";
   else if (TypePtr->isFloatingType()) {


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