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9350 Commits

Author SHA1 Message Date
Oliver Stöneberg de9f489b08 use range loops / constness (#2181) 
* use range loops / constness

* platform.cpp: avoid shadowed variable
 2019-09-19 20:29:33 +02:00
Sebastian bf55e835aa
Windows testrunner: Add testexprengine.cpp (#2184) 
Add export of executeAllFunctions() in exprengine.h
 2019-09-19 19:40:00 +02:00
versat 7277fe5a2b gnu.cfg: Add support for macro __extension__ 
The macro does nothing except preventing from warnings when compiling
with "pedantic" or other options.
 2019-09-19 12:27:21 +02:00
Sebastian 8207fb7b14
cairo.cfg: Add library configuration/tests/... for cairo library (#2176) 
Reference: https://www.cairographics.org/
 2019-09-19 08:48:04 +02:00
versat 076c604de8 python.cfg: Improve Python C API configuration 
Add configurations for types, macros, alloc/dealloc and functions.
 2019-09-18 15:09:13 +02:00
versat d08539fe17 windows.cfg: Fix PostMessage() configuration 
First argument is optional (allowed to be NULL). See also the annotation
"_In_opt_".
Reference:
https://docs.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-postmessagea
 2019-09-18 09:22:57 +02:00
Sebastian 5bf6bd1f5e
windows.cfg: Enhance/fix Windows configuration (#2177) 
Add/fix some missing/incorrect function configurations found by
analyzing TortoiseGit project.
Add some macros.
 2019-09-18 08:41:37 +02:00
Daniel Marjamäki 2d651b09fc ExprEngine: Add new experimental path-sensitive data flow analysis. Initially used for 'verification' but could possibly later be used as a complement in the normal analysis. The code is work-in-progress and hacky! 2019-09-17 21:00:59 +02:00
Sebastian fbbaea3cd9
qt.cfg: Add some missing macro definitions (#2175) 
Found by daca@home
 2019-09-16 15:58:35 +02:00
Daniel Marjamäki 887e65d006 TestSymbolDatabase: Clean up code using ASSERT 2019-09-16 11:18:01 +02:00
Daniel Marjamäki 5a5cecd4d5 TestSymbolDatabase: Clean up code using ASSERT 2019-09-16 11:12:40 +02:00
Daniel Marjamäki 004b4e4dbe TestSuite: The ASSERT and ASSERT_EQUALS will now stop executing the test case upon failure. This can be used to avoid extra guard logic in tests. 2019-09-16 06:34:45 +02:00
Daniel Marjamäki 033640310b One more fix for #9354 (Unknown macro is not reported and then Cppcheck is silent about issues) 2019-09-15 21:07:20 +02:00
Daniel Marjamäki 742c437953 Fixed #9354 (Unknown macro is not reported and then Cppcheck is silent about issues) 2019-09-13 13:05:48 +02:00
Paul Fultz II 068b0b246c Fix issue 9352: FP constParameter and constVariable for auto& in combination with ternary ?: operator (#2173) 2019-09-13 08:33:30 +02:00
Armin Müller a4ca6dfee7 testgarbage.cpp: Spelling in comment (#2172) 2019-09-12 20:52:39 +02:00
Daniel Marjamäki da363c7d6f Fixed #9349 (FP ctuuninitvar for pointer dereferenced inside sizeof) 2019-09-12 13:29:52 +02:00
Daniel Marjamäki 8855978f8a Import project: Ignoring paths better 2019-09-12 09:32:24 +02:00
IOBYTE 4e222afa2c template simplifier: ignore alias template definitions with syntax errors (#2169) 
Is not allowed to define a type in an alias template definition.

This code:

template<int N>
using A1 = struct B1 { static auto constexpr value = N; };
A1<0> a1;

produces this output:

2: } ;
3: struct B1 { static const auto value = 0 a1 ;

test.cpp:2:57: error: Analysis failed. If the code is valid then please
report this failure. [cppcheckError]
using A1 = struct B1 { static auto constexpr value = N; };
                                                        ^

because it tries to instantiate the invalid alias template definition
and generates garbage code.
 2019-09-11 19:31:15 +02:00
Paul Fultz II ba037837c9 Track lifetime across multiple returns 
This will now warn when doing something like this:

```cpp
template <class T, class K, class V>
const V& get_default(const T& t, const K& k, const V& v) {
    auto it = t.find(k);
    if (it == t.end()) return v;
    return it->second;
}
const int& bar(const std::unordered_map<int, int>& m, int k) {
    auto x = 0;
    return get_default(m, k, x);
}
```

The lifetime warning is considered inconclusive in this case.

I also updated valueflow to no tinject inconclusive values unless `--inconclusive` flag is passed. This creates some false negatives because library functions are not configured to not modify their input parameters, and there are some checks that do not check if the value is inconclusive or not.
 2019-09-11 19:25:09 +02:00
warmsocks a56bc006b7 Fixed a typo in lib/checkother.cpp. Corrected spelling errors found by codespell. (#2170) 2019-09-11 19:21:38 +02:00
Paul Fultz II dc0b3527ad Fix issue 9311: False positive duplicateCondition "same if condition" with pointer inside array of struct (#2166) 
* Check for typeOf through an array

* Handle array constructors

* Format

* Fix compile error on gcc 4.8
 2019-09-10 19:41:35 +02:00
Paul Fultz II 2595b82634 Fix issue 9348: FP uninitvar for pointer passed to memcpy (#2167) 2019-09-10 19:40:08 +02:00
orbitcowboy da29a1f56b gnu/bsd.cfg: Cleanup redundant configuration for timercmp() and add more tests. 2019-09-10 11:51:47 +02:00
Paul Fultz II b2ae835b4b cmake: Add dependency on cppcheck (#2165) 
This adds a dependency on cppcheck so it will be built when calling `make check`
 2019-09-10 06:21:59 +02:00
IOBYTE 639c29eb5c Fix #9338 (Regression: Syntax error on valid C++) (#2156) 
* Fix #9338 (Regression: Syntax error on valid C++)

* fix cppcheck warning
 2019-09-09 21:46:21 +02:00
Paul Fultz II d20b1b2525 Add cfg tests to cmake (#2154) 
* Add cfg tests to cmake

* Fix test
 2019-09-09 21:44:30 +02:00
Paul Fultz II 9753e18ebd Fix issue 9340: AST broken: endless recursion from '{' (#2161) 2019-09-09 21:35:49 +02:00
Sebastian 4a119640c5 #8755: Add regression test (#2160) 
* #8755: Add regression test

https://trac.cppcheck.net/ticket/8755
False negative: uninitvar not detected

* Fixed formatting (runastyle)
 2019-09-09 17:20:03 +02:00
versat 7737a448cf Fix #9345 FP wrongPrintfScanfArgNum for vasprintf 
Configuration "<formatstr/>" for function is wrong, for the argument it
is fine.
 2019-09-09 15:02:55 +02:00
orbitcowboy aed5e17867 #9323, #9331: Moved configuration and tests to gnu and bsd. 2019-09-08 19:17:15 +02:00
orbitcowboy 12c851d9a8 posix.cfg: Fixed #9323, #9331 by adding timercmp() configuration. 2019-09-07 10:42:09 +02:00
IOBYTE 59fdbd8435 Fix #9337 (Syntax error on valid C++) (#2152) 2019-09-07 09:09:04 +02:00
Paul Fultz II 27ebff7ae4 Add deeper analysis of when a function changes a containers size (#2149) 
* Add deeper analysis of when a function changes a containers size

* Fix issues

* Track addressOf
 2019-09-06 21:18:45 +02:00
Sebastian 4531b31a4a
Test for issue 9334: FP resourceLeak for dlopen/dlclose with library posix (#2151) 
Add test to avoid further FP for valid code.
Tests for true positives are already present.
https://trac.cppcheck.net/ticket/9334
 2019-09-06 16:37:51 +02:00
Sebastian 32dad3f44a
posix.cfg: Fix vsyslog() configuration (#2150) 
Add tests to make sure no false positives are reported.
Found the issue via daca@home
 2019-09-06 10:16:11 +02:00
Paul Fultz II 70cad280ea Fix issue 9319: FP knownConditionTrueFalse related to aggregate initialization of struct (#2147) 2019-09-05 19:36:45 +02:00
Paul Fultz II 9e140831eb Fix issue 9329: FP knownConditionTrueFalse - vector modified by function calls (#2145) 2019-09-05 16:42:26 +02:00
Paul Fultz II e657cf4073 Fix issue 9320: False positive knownConditionTrueFalse related to truncation (#2144) 2019-09-05 15:15:58 +02:00
Daniel Marjamäki 068b0ef648 Make Travis happy 2019-09-04 13:38:19 +02:00
Daniel Marjamäki a9fda3f488 Clarify redundantVarAssignment warnings 2019-09-04 10:55:41 +02:00
IOBYTE e5220bdf0c make ellipsis ... a single token (#2143) 
* make ellipsis ... a single token

Using cppcheck -E to preprocess code with ellipsis produces output that
can't be compiled because ... is split into 3 tokens.

* try to fix addon
 2019-09-04 08:07:30 +02:00
Paul Fultz II 1afd56e964 Fix issue 8785: ValueFlow: Track pointer alias 
This fixes the issue by making `ProgramMemory` keep track of values based on the conditions.

It also removes the `deadpointer` check since it duplicates the `invalidLifetime` check.
 2019-09-03 17:16:15 +02:00
Paul Fultz II 55a78f482b Fix issue 9293: false negative: uninitvar 2019-09-03 06:46:34 +02:00
Paul Fultz II dc201d110d Fix issue 9274: false negative: (error) Buffer is accessed out of bounds (std::string, std::wstring) 2019-09-03 06:43:54 +02:00
Paul Fultz II 88d194214f Fix FP with invalidContainerRef (#2141) 2019-09-03 06:41:35 +02:00
Daniel Marjamäki 7d63bdee6f astyle formatting 
[ci skip]
 2019-09-02 06:59:07 +02:00
Paul Fultz II cb509f1a8b Fix issue 4845: alias to vector element invalid after vector is changed (#2113) 
* Try harder to track ref lifetimes

* Dont add lifetimes for references

* Use correct token

* Check for front and back as well

* Improve handling of addresses

* Formatting

* Fix FP
 2019-09-02 06:58:09 +02:00
Paul Fultz II 255c1062e4 Run test fixtures as seperate tests so they can run in parallel (#2126) 2019-09-02 06:53:35 +02:00
IOBYTE fd403bf7e6 template simplifier: only add recursive instantiation if its arguments are a constant expression (#2138) 2019-09-02 06:51:19 +02:00