cf6e72b150
* Optimised simplifyKnownVariables Changed the check for references to constant variables so instead of iterating through all tokens looking for references (which is very slow for large files), usages of each known variable are recorded so each usage can be checked for whether or not it is a reference. Just checking known usages is a lot quicker than checking through all tokens. * Fixed test error caused by incorrect code * Fixes to constant variable simplification optimisation Indexing variables by varId is easier than by Token pointer, but means we also have to store a reference to the constant variable Token in another collection. Switched to using unordered_map over map as it has slightly better find performance. * Fixed incorrect simplification behaviour This should remove constant variables correctly and efficiently. Requires additional functions, Token::deleteThisInPlace() and TokenList::front(Token*). * Added setter for TokenList::first This allows code that adds and removes Tokens from the list to do so without copying nodes into other nodes, which sometimes create difficulties. * Added deleteThisInPlace function This allows a token to delete itself without invalidating pointers to the node after it. If this token is the first or last in a list the calling code will have to remember to change the list's front or back. * Added declaration for deleteThisInPlace() * Removed premature MatchCompiler optimisation * Added and removed some functions Added declaration for deleteToken(Token*) which deletes a single token from the list Removed public front(Token*) because it broke encapsulation * Implemented deleteToken(Token*) function * Removed 'delete this' from deleteThisInPlace * Switched to using safer function TokenList::deleteToken is better than calling straight into Token::deleteThisInPlace because it doesn't call delete this and doesn't break the TokenList's encapsulation. * Replace constant variables in reverse order This fixes the problem where you have two constant value assignment statements in a row. Replacing and deleting them in reverse order means we avoid the problem of deleteThis() potentially invalidating the pointer to the start of the next assignment statement * Removed unneeded and unsafe deleteThisInPlace * Removed unneeded and unsafe deleteThisInPlace * Removed unneeded deleteToken * Removed unneeded deleteToken * Removed extra whitespace |
||
|---|---|---|
| Cppcheck.xcodeproj | ||
| addons | ||
| cfg | ||
| cli | ||
| cmake | ||
| democlient | ||
| externals | ||
| gui | ||
| htmlreport | ||
| lib | ||
| man | ||
| platforms | ||
| rules | ||
| samples | ||
| snap | ||
| test | ||
| tools | ||
| triage | ||
| win_installer | ||
| .codacy.yml | ||
| .gitignore | ||
| .mailmap | ||
| .travis.yml | ||
| .travis_llvmcheck_suppressions | ||
| .travis_suppressions | ||
| AUTHORS | ||
| CMakeLists.txt | ||
| COPYING | ||
| Makefile | ||
| appveyor.yml | ||
| benchmarks.txt | ||
| build-pcre.txt | ||
| build.bat | ||
| console_common.pri | ||
| cppcheck.cbp | ||
| cppcheck.cppcheck | ||
| cppcheck.sln | ||
| createrelease | ||
| doxyfile | ||
| generate_coverage_report | ||
| readme.md | ||
| readme.txt | ||
| runastyle | ||
| runastyle.bat | ||
| webreport.sh | ||
readme.md
Cppcheck
| Linux Build Status | Windows Build Status | Coverity Scan Build Status |
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Donations
If you find Cppcheck useful for you, feel free to make a donation.
About the name
The original name of this program was "C++check", but it was later changed to "Cppcheck".
Despite the name, Cppcheck is designed for both C and C++.
Manual
A manual is available online.
Compiling
Any C++11 compiler should work. For compilers with partial C++11 support it may work. If your compiler has the C++11 features that are available in Visual Studio 2013 / GCC 4.6 then it will work.
To build the GUI, you need Qt.
When building the command line tool, PCRE is optional. It is used if you build with rules.
There are multiple compilation choices:
- qmake - cross platform build tool
- cmake - cross platform build tool
- Windows: Visual Studio (VS 2010 and above)
- Windows: Qt Creator + mingw
- gnu make
- g++ 4.6 (or later)
- clang++
qmake
You can use the gui/gui.pro file to build the GUI.
cd gui
qmake
make
Visual Studio
Use the cppcheck.sln file. The file is configured for Visual Studio 2015, but the platform toolset can be changed easily to older or newer versions. The solution contains platform targets for both x86 and x64.
To compile with rules, select "Release-PCRE" or "Debug-PCRE" configuration. pcre.lib (pcre64.lib for x64 builds) and pcre.h are expected to be in /externals then.
Qt Creator + MinGW
The PCRE dll is needed to build the CLI. It can be downloaded here: http://software-download.name/pcre-library-windows/
GNU make
Simple, unoptimized build (no dependencies):
make
The recommended release build is:
make SRCDIR=build CFGDIR=cfg HAVE_RULES=yes CXXFLAGS="-O2 -DNDEBUG -Wall -Wno-sign-compare -Wno-unused-function"
Flags:
-
SRCDIR=build
Python is used to optimise cppcheck -
CFGDIR=cfg
Specify folder where .cfg files are found -
HAVE_RULES=yes
Enable rules (PCRE is required if this is used) -
CXXFLAGS="-O2 -DNDEBUG -Wall -Wno-sign-compare -Wno-unused-function"Enables most compiler optimizations, disables cppcheck-internal debugging code and enables basic compiler warnings.
g++ (for experts)
If you just want to build Cppcheck without dependencies then you can use this command:
g++ -o cppcheck -std=c++11 -Iexternals/simplecpp -Iexternals/tinyxml -Ilib cli/*.cpp lib/*.cpp externals/simplecpp/simplecpp.cpp externals/tinyxml/*.cpp
If you want to use --rule and --rule-file then dependencies are needed:
g++ -o cppcheck -std=c++11 -lpcre -DHAVE_RULES -Ilib -Iexternals/simplecpp -Iexternals/tinyxml cli/*.cpp lib/*.cpp externals/simplecpp/simplecpp.cpp externals/tinyxml/*.cpp
MinGW
mingw32-make LDFLAGS=-lshlwapi
Other Compiler/IDE
- Create a empty project file / makefile.
- Add all cpp files in the cppcheck cli and lib folders to the project file / makefile.
- Add all cpp files in the externals folders to the project file / makefile.
- Compile.
Cross compiling Win32 (CLI) version of Cppcheck in Linux
sudo apt-get install mingw32
make CXX=i586-mingw32msvc-g++ LDFLAGS="-lshlwapi" RDYNAMIC=""
mv cppcheck cppcheck.exe