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CPPCHECK(1) cppcheck User Manual CPPCHECK(1) NAME cppcheck - Tool for static C/C++ code analysis SYNOPSIS cppcheck [--check-config] [--check-library] [-D<id>] [-U<id>] [--dis- able=<id>] [--enable=<id>] [--error-exitcode=<n>] [--errorlist] [--exitcode-suppress=<spec>] [--exitcode-suppressions=<file>] [--file-list=<file>] [--filesdir] [--force] [--fsigned-char] [--funsigned-char] [--help] [-I<dir>] [--includes-file=<file>] [--config-exclude=<dir>] [--config-excludes-file=<file>] [--in- clude=<file>] [-i<dir>] [--inconclusive] [--inline-suppr] [-j<jobs>] [-l<load>] [--language=<language>] [--library=<cfg>] [--max-configs=<limit>] [--max-ctu-depth=<limit>] [--plat- form=<type>] [--quiet] [--relative-paths=<paths>] [--re- port-progress] [--report-type=<type>] [--rule=<rule>] [--rule-file=<file>] [--showtime=<mode>] [--std=<id>] [--sup- press=<spec>] [--suppressions-list=<file>] [--sup- press-xml=<.xml file>] [--template='<text>'] [--verbose] [--ver- sion] [--xml] [--xml-version=<version>]] [file or path] ... DESCRIPTION Cppcheck is a command-line tool that tries to detect bugs that your C/C++ compiler doesn't see. It is versatile, and can check non-standard code in- cluding various compiler extensions, inline assembly code, etc. Its inter- nal preprocessor can handle includes, macros, and several preprocessor com- mands. While Cppcheck is highly configurable, you can start using it just by giving it a path to the source code. OPTIONS Analyze given C/C++ files for common errors. --check-config Check Cppcheck configuration. The normal code analysis is disabled by this flag. --check-library Show information messages when library files have incomplete info. -D<id> By default Cppcheck checks all configurations. Use -D to limit the checking. When -D is used the checking is limited to the given configu- ration. Example: -DDEBUG=1 -D__cplusplus -U<id> By default Cppcheck checks all configurations. Use '-U' to explicitly hide certain #ifdef <id> code paths from checking. Example: '-UDEBUG' --disable=<id> Disable individual checks. Please refer to the documentation of --en- able=<id> for further details. --enable=<id> Enable additional checks. The available ids are: all Enable all checks. It is recommended to only use --enable=all when the whole program is scanned, because this enables unusedFunction. warning Enable warning messages style Enable all coding style checks. All messages with the severities 'style', 'performance' and 'portability' are enabled. performance Enable performance messages portability Enable portability messages information Enable information messages unusedFunction Check for unused functions. It is recommend to only enable this when the whole program is scanned missingInclude Warn if there are missing includes By default none of the additional checks are enabled. Several ids can be given if you separate them with commas, e.g. --enable=style,unused- Function. See also --std --error-exitcode=<n> If errors are found, integer <n> is returned instead of default 0. EXIT_FAILURE is returned if arguments are not valid or if no input files are provided. Note that your operating system can modify this value, e.g. 256 can become 0. --errorlist Print a list of all possible error messages in XML format. --exitcode-suppress=<spec> Used to specify an error ID which should not result in a non-zero exit- code. --exitcode-suppressions=<file> Used when certain messages should be displayed but should not cause a non-zero exitcode. --file-list=<file> Specify the files to check in a text file. One filename per line. When file is -, the file list will be read from standard input. --filesdir Print the built-in FILESDIR. -f, --force Force checking of files that have a lot of configurations. Error is printed if such a file is found so there is no reason to use this by default. If used together with --max-configs=, the last option is the one that is effective. --fsigned-char Treat char type as signed. This overrides previous --platform options and is overridden by following ones. --funsigned-char Treat char type as unsigned. This overrides previous --platform options and is overridden by following ones. -h, --help Print help text. -I <dir> Give path to search for include files. Give several -I parameters to give several paths. First given path is searched for contained header files first. If paths are relative to source files, this is not needed. --includes-file=<file> Specify directory paths to search for included header files in a text file. Add one include path per line. First given path is searched for contained header files first. If paths are relative to source files, this is not needed. --config-exclude=<dir> Path (prefix) to be excluded from configuration checking. Preprocessor configurations defined in headers (but not sources) matching the prefix will not be considered for evaluation of configuration alternatives. --config-exclude-file=<file> A file that contains a list of config-excludes. --include=<file> Force inclusion of a file before the checked file. Can be used for ex- ample when checking the Linux kernel, where autoconf.h needs to be in- cluded for every file compiled. Works the same way as the GCC -include option. -i <dir> Give path to ignore. Give several -i parameters to ignore several paths. Give directory name or filename with path as parameter. Direc- tory name is matched to all parts of the path. --inconclusive Allow that Cppcheck reports even though the analysis is inconclusive. There are false positives with this option. Each result must be care- fully investigated before you know if it is good or bad. --inline-suppr Enable inline suppressions. Use them by placing comments in the form: // cppcheck-suppress memleak before the line to suppress. -j <jobs> Start <jobs> threads to do the checking work. -l <load> Specifies that no new threads should be started if there are other threads running and the load average is at least <load> (ignored on non UNIX-like systems) --language=<language> Forces cppcheck to check all files as the given language. Valid values are: c, c++ --library=<cfg> Use library configuration. --max-configs=<limit> Maximum number of configurations to check in a file before skipping it. Default is 12. If used together with --force, the last option is the one that is effective. --max-ctu-depth=<limit> Maximum depth in whole program analysis. Default is 2. --platform=<type> Specifies platform specific types and sizes.The available platforms are: unix32 32 bit unix variant unix64 64 bit unix variant win32A 32 bit Windows ASCII character encoding win32W 32 bit Windows UNICODE character encoding win64 64 bit Windows By default the platform which was used to compile Cppcheck is used. -q, --quiet Only print something when there is an error. -rp, -rp=<paths>, --relative-paths;, --relative-paths=<paths> Use relative paths in output. When given, <paths> are used as base. You can separate multiple paths by ';'. Otherwise path where source files are searched is used. E.g. if given value is test, when checking test/test.cpp, the path in output will be test.cpp instead of test/test.cpp. The feature uses string comparison to create relative paths, so using e.g. ~ for home folder does not work. It is currently only possible to apply the base paths to files that are on a lower level in the directory tree. --report-progress Report progress when checking a file. --report-type=<type> Add guideline and classification fields for specified coding standard. The available report types are: normal Default, only show cppcheck error ID and severity) autosar Autosar cert-c-2016 Cert C 2016 cert-cpp-2016 Cert C++ 2016 misra-c-2012 Misra C 2012 misra-c-2023 Misra C 2023 misra-c-2025 Misra C 2025 misra-cpp-2008 Misra C++ 2008 misra-cpp-2023 Misra C++ 2023 --rule=<rule> Match regular expression to create your own checks. E.g. rule "/ 0" can be used to check division by zero. This command is only available if cppcheck was compiled with HAVE_RULES=yes. --rule-file=<file> Use given rule XML file. See https://sourceforge.net/projects/cp- pcheck/files/Articles/ for more info about the syntax. This command is only available if cppcheck was compiled with HAVE_RULES=yes. --showtime=<mode> Show timing information. The available mode are: none Show nothing (default) file Show for each processed file file-total Show total time only for each processed file summary Show a summary at the end top5_file Show the top 5 for each processed file top5_summary Show the top 5 summary at the end --std=<id> Set standard. The available options are: c89 C code is C89 compatible c99 C code is C99 compatible c11 C code is C11 compatible (default) c++03 C++ code is C++03 compatible c++11 C++ code is C++11 compatible c++14 C++ code is C++14 compatible c++17 C++ code is C++17 compatible c++20 C++ code is C++20 compatible (default) --suppress=<spec> Suppress a specific warning. The format of <spec> is: [error id]:[file- name]:[line]. The [filename] and [line] are optional. [error id] may be * to suppress all warnings (for a specified file or files). [filename] may contain the wildcard characters * or ?. --suppressions-list=<file> Suppress warnings listed in the file. Each suppression is in the format of <spec> above. --suppress-xml=<.xml file> Use suppressions defined in xml as described in the manual --template='<text>' Format the error messages. E.g. '{file}:{line},{severity},{id},{mes- sage}' or '{file}({line}):({severity}) {message}'. Pre-defined tem- plates: gcc, vs -v, --verbose More detailed error reports --version Print out version information --xml Write results in XML to error stream --xml-version=<version> Select the XML file version. Also implies --xml. Currently only version 2 is available. The default version is 2. AUTHOR The program was written by Daniel Marjamaki and Cppcheck team. See AUTHORS file for list of team members. SEE ALSO Full list of features: https://sourceforge.net/p/cppcheck/wiki/Home/ AUTHOR Reijo Tomperi <aggro80@users.sourceforge.net> Wrote this manpage for the Debian system. COPYRIGHT Copyright (C) 2009 - 2016 Reijo Tomperi This manual page was written for the Debian system (but may be used by oth- ers). Permission is granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 3 or (at your option) any later version published by the Free Software Foundation. On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL-3. cppcheck 08/04/2026 CPPCHECK(1)
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