https://bugs.kde.org/show_bug.cgi?id=502458
Bug ID: 502458
Summary: crash in qstring-comparison-to-implicit-char
Classification: Developer tools
Product: clazy
Version: unspecified
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: unassigned-b...@kde.org
Reporter: mar...@coopmasters.de
CC: smart...@kde.org
Target Milestone: ---
SUMMARY
STEPS TO REPRODUCE
1. create a minimal project
main.cpp
~~~~
#include <QByteArray>
#include <QString>
int main() {
QByteArray ba = "this is a qbytearray";
if ((ba == QStringLiteral("windows_generic_MSG")))
{
return 1;
}
return 0;
}
~~~~
and this CMakeLists.txt
~~~~
cmake_minimum_required(VERSION 3.29)
project(clazyerror)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
if(CMAKE_EXPORT_COMPILE_COMMANDS)
set(CMAKE_CXX_STANDARD_INCLUDE_DIRECTORIES
${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES})
endif()
set(CMAKE_CXX_STANDARD 17)
find_package(Qt5Core REQUIRED)
add_executable(clazyerror main.cpp)
target_link_libraries(clazyerror Qt5::Core)
~~~
2.
3.
OBSERVED RESULT
EXPECTED RESULT
SOFTWARE/OS VERSIONS
Windows:
macOS:
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma:
KDE Plasma Version:
KDE Frameworks Version:
Qt Version: qt5-base 5.15.16+kde+r130-4 ( archlinux)
ADDITIONAL INFORMATION
Stack trace:
<unknown> 0x00007fffea4a5624
QStringComparisonToImplicitChar::VisitStmt
qstring-comparison-to-implicit-char.cpp:45
ClazyASTConsumer::VisitStmt Clazy.cpp:149
ClazyASTConsumer::HandleTranslationUnit Clazy.cpp:168
main ClazyStandaloneMain.cpp:216
First commit with this crash:
commit 215b2ca9e187d638d153bbeccdab8bf82f536e2b
Author: Alexander Lohnau <alexander.loh...@gmx.de>
Date: Mon Dec 23 10:31:20 2024 +0100
Optimize more codepaths to use operator enum instead of string comparisons
This is a small optimization, but checking the operator costs 1/10 of the
time of a string comparison.
Especially for the often used Utils and level0 check, this is sensible
to have.
LLVM (version: 19.1.7)
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