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64 Commits

Author SHA1 Message Date
Paul Fultz II f16d9d7d90 Issue 6175: Check lifetime of a variables stored in containers and member variables 
Cppcheck will now warn for all cases here:

```cpp
#include <vector>
class CCluster {};
class MyClass
{ public:
    std::vector<CCluster*> m_cluster;
    void createCluster()
    {
        CCluster cl;
        CCluster* pcl=&cl;
        m_cluster.push_back(pcl);
    }
    void createCluster2()
    {
        CCluster cl;
        m_cluster.push_back(&cl);
    }
    CCluster* Cluster()
    {
        CCluster cl;
        CCluster* pcl=&cl;
        return pcl;
    }
    CCluster* Cluster2()
    {
        CCluster cl;
        return &cl;
    }
};

```
 2018-11-21 08:43:57 +01:00
Paul Fultz II 0e11bb07c8 Extend lifetime analysis to pointer usage (#1477) 
* Use lifetime analysis for pointers as well

* Fix issue 1143: Pointer to local array

* Update message when using pointers

* Avoid infinite loop in tracing lifetimes
 2018-11-12 10:08:17 +01:00
Paul Fultz II 68d6b96878 Diagnose invalid lifetimes (#1475) 
* Add check for invalid lifetimes

* Fix FP with member variables

* Dont forward lifetime values in subfunction

* Update message to use out of scope
 2018-11-11 16:43:54 +01:00
Paul Fultz II 1ffcc6b730 Add initial lifetime checker (#1448) 
* Inital valueflow lifetime checker

* Forward values

* Add initial tests

* Fix deplicate messages

* Fix traversing nested lambdas

* Turn test case into a todo

* Skip if returning a container

* Fix FP when using references

* Add missing header

* Fix FP from broken scopes

* Fix FP with static variable

* Add test for more FPs

* Parse lambda functions

* Check for capture by value

* Add tests for using a container and lambda together

* Fix cppcheck errors

* Add test for nextAfterAstRightmostLeaf

* Add valueflow tests

* Update error message

* Check for correct lambda token

* Improve error path reporting

* Fix hang when parsing arrays that look almlost like lambdas
 2018-11-10 16:40:40 +01:00
Daniel Marjamäki 66ca03fa0c Fixed #8826 (false negative: Invalid memory address freed) 2018-11-03 18:55:20 +01:00
IOBYTE ce50df8047 Fix override warnings. (#1234) 2018-05-15 16:37:40 +02:00
Daniel Marjamäki 7e4dba6a7e Updated copyright year 2018-03-31 20:59:09 +02:00
Daniel Marjamäki c110770481 Fixed #8325 (False negative: address of auto variable being returned when assigned to another variable first) 2018-01-27 14:48:45 +01:00
Daniel Marjamäki cb297a00fc Auto variables: Assign address of local variable to global pointer (#6825) 2018-01-25 22:50:41 +01:00
Daniel Marjamäki 599e038282 AutoVariables: Warn when address of local array is assigned to global pointer and pointer is not reassigned 2018-01-24 21:33:58 +01:00
Daniel Marjamäki c4caee6b18 Updated copyright year 2018-01-14 15:37:52 +01:00
Ayaz Salikhov 28aa939d69 iwyu - include what you use 2017-05-27 04:33:47 +02:00
amai2012 eba1b0881d Minor refactoring: use nullptr (instead of 0/NULL), change signature of Tokenizer::createTokens 2016-05-07 16:30:54 +02:00
Lauri Nurmi 996c9244d8 Update copyright year to 2007-2016. 2016-01-01 15:34:45 +02:00
Daniel Marjamäki 0f9d90d2be Changed Copyrights. Removed my name. 2015-11-18 20:04:50 +01:00
Daniel Marjamäki ad0d23036c Fixed some cppcheck warnings about methods that can be static/const 2015-11-14 18:43:07 +01:00
Simon Martin 6fb19b02d0 Properly differentiate arrays of pointers and pointers to arrays. 2015-08-25 21:19:19 +02:00
Daniel Marjamäki ff11ba9847 Updated copyright year to 2015 2015-01-03 12:14:58 +01:00
Daniel Marjamäki 051d42ae6b astyle formatting 2014-11-20 14:20:09 +01:00
orbitcowboy f5d804f71a running astyle 2014-11-20 10:13:03 +01:00
Daniel Marjamäki fbc6323a9b doc: changed --doc output to Markdown syntax 2014-09-30 14:56:12 +02:00
PKEuS ac59485e7e Refactorized CheckAutoVariables::assignFunctionArg(): 
- Splitted message into style message (assigning non-pointers) and warning message (assigning pointers)
- Support operator++/-- (#4793)
 2014-08-04 11:45:24 +02:00
PKEuS 8f79dc3ff8 Cleaned up includes and forward declarations in checkers: 
- Removed definitely unnecessary forward declarations (e.g. "class Token"; token.h is already included by check.h, so a definition is unnecessary)
 - Removed unused includes
 2014-05-24 12:50:03 +02:00
Daniel Marjamäki fd3a8a2a18 Update copyright 2014-02-15 07:45:39 +01:00
Alexander Mai 12df5300ba Fixed #5290 (Doxygen fixes (32be409)) 2014-01-01 20:46:00 +01:00
Daniel Marjamäki 0ef1529ba5 Fixed #5005 (false positive: (warning) Assignment of function parameter has no effect outside the function.) 2013-10-06 16:07:27 +02:00
Ettl Martin 9ab6655d85 Fixed #5007 (Same include guard naming) 2013-09-04 20:59:49 +02:00
PKEuS a9a5dc0354 Updated to AStyle 2.03, require this version 2013-08-07 16:27:37 +02:00
PKEuS 33cf561d85 Refactorized check for assigning function parameters: 
- Fixed false negative: Check is also valid for all non-references, not only for pointers.
- Fixed false negative: Usage before assignment doesn't require bailout
- Fixed false positive #4598 caused by inadequate usage of CheckUninitVar::isVariableUsage
- Made several member functions static
 2013-02-18 08:52:49 -08:00
Daniel Marjamäki cbbb582fc9 Fixed #2930 (new check: redundant assignment of pointer function parameter) 2013-02-01 19:16:17 +01:00
Robert Reif 94c953931d Simplify checks by caching symbol database Variable pointer in Token 2013-01-31 20:08:48 +01:00
Robert Reif 859793731d SymbolDatabase: Refactor findFunction handling. Ticket: #4494 2013-01-28 06:47:48 +01:00
Reijo Tomperi 5d5f7085bf Updating year 2012 -> 2013 to .cpp and .h files and man page. 2013-01-01 18:29:08 +02:00
Edoardo Prezioso b50e1f4451 Attempt to fix all doxygen warnings. 2012-10-24 01:32:07 +02:00
Robert Reif 0d4b87c71e SymbolDatabase: Improved find function functionality. Taking arguments into account 2012-10-14 17:30:37 +02:00
XhmikosR 6e4e3dfbfb lib: tabs to spaces, remove trailing spaces and extra empty lines at the end of files 2012-09-17 13:51:23 +02:00
PKEuS 1e5d082251 Moved remaining part of c_str() checking to checkstl.cpp. Fixed false positive #4157. 2012-09-10 15:20:38 +02:00
PKEuS 1b40668e04 Refactorizations: 
- Made several functions (Check*::myName and others) because they don't touch depend on a specific instance. (cppcheck findings)
- Removed description of a check in CheckConst that has moved to CheckIO
 2012-08-02 09:50:48 -07:00
PKEuS 247d820027 Fixed #3972: Don't issue auto variable error when the address is assigned to a reference to a non-pointer. 2012-07-13 05:21:45 -07:00
PKEuS 4b80e91145 Implemented support for building cppcheck lib into a dll 
Updated VS9 solution
New VS10 solution that builds cppcheck into a dll used by cli and testrunner.
Functional changes and advantages of new solution:
- Share code between testrunner and cli; ability to share code with gui as well (not yet implemented)
- Files of /lib are no longer compiled twice (should improve build time on single core machines)
- Added configuration for building with PCRE support
- Executables are build into /bin (/bin/debug in debug mode) folder (Should no longer require rebuild when switching between debug and release)
- Completely x64 compatible (contains also x64-debug configuration now)
 2012-06-10 05:19:09 -07:00
PKEuS 1ef99e2f21 Improved checkautovariables: 
- Added support for checking a few more code patterns
- Simplified code by using more information from the symboldatabase
- Moved redundant part of c_str-check to checkstl
Two fixes according to output of pvs studio in testsimplifytokens.cpp
 2012-03-01 18:38:20 +01:00
PKEuS b1ff900aaa Some refactorizations 2012-02-18 23:43:51 +01:00
Reijo Tomperi 8cae17fda8 Update year to 2012 2012-01-01 01:05:37 +02:00
PKEuS dca03c3ce2 Remove unnecessary includes 
Also add a unit test related to #3427
Also improve the description text in checkclass and remove unused variable.
 2011-12-23 23:31:48 +02:00
Daniel Marjamäki 6f8e42a5af changed the astyle formatting flags 2011-10-13 20:53:06 +02:00
Robert Reif e7dc765ece fix #3064 (false negative: returning address of stack variable) 2011-08-31 21:36:31 -04:00
Daniel Marjamäki 2b8b0c44b2 Fixed #2969 (False positive: assign address of auto-var to function parameter, when function parameter is reassigned later) 2011-08-09 18:24:39 +02:00
Daniel Marjamäki 31e3844f3f Fixed #2856 (--errorlist not printing all auto-variable errors) 2011-07-21 14:50:38 +02:00
Robert Reif 55898c0dfc convert last check in checkautovariables to use the symbol database 2011-04-23 09:50:56 -04:00
Daniel Marjamäki 7507f64ee7 Fixed #2558 (false positive: (error) Returning reference to auto variable) 2011-02-12 15:39:26 +01:00