Commit Graph

23495 Commits

Author SHA1 Message Date
Daniel Marjamäki 376860f796 AST: Adjust AST for variable declaration 'char var[] = str;' 2020-10-31 17:05:42 +01:00
Daniel Marjamäki 6cf571af97 compare_ast_symdb.py: improved script for comparing cppcheck/clang ast etc 2020-10-31 14:57:12 +01:00
Wolfgang Stöggl 661ff1e067
release-windows: Use current ProductVersion (#2867)
The filename of the daily built installer still contains 2.0 e.g.:
cppcheck-2.0.182-x64-Setup.msi
- Read the ProductVersion from productInfo.wxi and use it in the
file name of the cppcheck setup file.
- Add possibility to manually trigger this GitHub action using
  workflow_dispatch:
- Fix indentation, yamllint error:
  10:5 error wrong indentation: expected 6 but found 4 (indentation)
2020-10-31 12:23:24 +01:00
vilarion bc5ec38149
Fix #9806 (False positive: template function can be static) (#2868)
* Include detecting variadic template functions by matching against endTok instead of startTok.
* Add argument count check for variadic (template) member functions.
2020-10-31 10:02:15 +01:00
shaneasd a623168942
fix passedByValueError on enums (#2869) 2020-10-30 18:32:35 +01:00
Daniel Marjamäki b96f23a388 Fixed tools/compare_ast.py 2020-10-30 10:14:18 +01:00
Daniel Marjamäki 6d0b78433b astyle formatting 2020-10-29 21:43:56 +01:00
Daniel Marjamäki e044d6e219 Clang import: fixed AST for 'return new S()' 2020-10-29 21:43:35 +01:00
Daniel Marjamäki ef42b82a49 fix tools/compare_ast.py 2020-10-29 21:18:40 +01:00
Daniel Marjamäki 9ed4dc4199 Clang Import: Fix AST for 'new S;' 2020-10-29 20:52:09 +01:00
Rikard Falkeborn de19dc9e3e
Fix #8327 (Memleak with mmap return value check) (#2864)
Also fix a broken test case related to checking the return value -1
where socket was not defined in the library used in the tests.

This was tested running test-my-pr with 500 packages. The difference was
six fewer FPs.
2020-10-29 13:17:33 +01:00
Daniel Marjamäki 16f4f198eb Clang import: handle DefaultStmt 2020-10-29 09:48:35 +01:00
Daniel Marjamäki 40156365b8 Adjust cppcheck AST debug output a little bit. Write location for each AST tree 2020-10-28 21:41:21 +01:00
Georgy Komarov b87aaaac52
Fix and impove MISRA 6.1 and 6.2 rules (#2863) 2020-10-28 20:54:43 +01:00
Daniel Marjamäki 417bc5c732 tools; remove old script for comparing cppcheck and clang asts 2020-10-27 21:02:34 +01:00
Lars Even Almaas 79b9dd5345
MISRA Rule 6.1/6.2 Bit field check (#2861) 2020-10-27 16:00:19 +01:00
Daniel Marjamäki 4eb829933e Tokenizer: Fixed unwanted unknownMacro warning for decltype 2020-10-27 09:08:13 +01:00
Wolfgang Stöggl 1f6cb7a54b
Remove ./ from relative paths in online-help.qhp (#2860)
- Fixes the following errors, when opening online-help.qhc using Qt
  assistant: QTextBrowser: No document for
  qthelp://cppcheck.sourceforge.net/doc/./preferences.html
  etc.
- Furthermore, ./ is not used anymore in Qt documentation:
    https://doc.qt.io/qt-5/qtassistant-simpletextviewer-example.html
  It was used previously:
    https://doc.qt.io/archives/qt-4.8/qt-help-simpletextviewer-example.html
  Example:
    <section title="Find File" ref="./findfile.html">
    ->
    <section title="Find File" ref="findfile.html">
2020-10-26 10:07:47 +01:00
Even Rouault 6d4ca8e82f
qt.cfg: allow bool as second argument of setProperty() (#2859)
A QVariant can be constructed with a bool, so there is no reason to
forbid this.
2020-10-26 07:32:59 +01:00
Daniel Marjamäki 34c8334882 Fixed #9737 (False positive: unreadVariable) 2020-10-25 20:32:45 +01:00
Daniel Marjamäki 05514950af astyle formatting
[ci skip]
2020-10-25 07:12:30 +01:00
miltolstoy d55874ec37
checkunusedvar: handle initialization list (#2836) 2020-10-25 07:11:45 +01:00
Daniel Marjamäki eb2c0bb6ee Fix TestExprEngine 2020-10-24 22:53:15 +02:00
Daniel Marjamäki 3876b601d5 Fixed #9476 (Tokenizer: report unknown macro) 2020-10-24 22:12:10 +02:00
amai2012 2fa837c716
threadsafety shall not warn about const vars (in C++11) (#2847)
threadsafety shall not warn about const vars (in C++11) 
For C++03 a new id threadsafety-const was created.
2020-10-23 11:58:25 +02:00
Rikard Falkeborn d7a8e25d92
Fix #9647: Set correct enum value (#2856)
* Tokenize: Set varId for variables in enum

Set varIds in enum values. It was previously disabled in 5119ae84b8
to avoid issues with enums named the same as global variables. Take care
to only set varids to variables used to set the value of an enumerator,
not the enumerator itself. This is somewhat complicated by the fact that
at the time this happens, astOperand1(), astOperand2(), astParent() etc
are not set. The current implementation is not perfect, for example in
the code below, y will not have a varid set, but x and z will. This is
deemed sufficient for now.

            int x, y, z;
            enum E { a = f(x, y, z); };

* Fix #9647: Value of enums with variables as init values

C++ allows enum values to be set using constexprs, which cppcheck did
not handle before. To solve this, add a new pass to valueflow to update
enum values after global consts have been processed. In order to do so,
I moved all settings of enum values to valueflow. After setting the enum
values, we need another call to valueFlowNumber() to actually set users
of the enums.

There is still room for improvements, since each pass of
valueFlowGlobalConstVar() and valueFlowEnumValue() only sets variables
that are possible to set directly, and not if setting the value of a
variable allows us to set the value of another. For example

	constexpr int a = 5;
	constexpr int b = a + 5;
	enum E { X = a };
	constexpr E e = X;

Here both b and e will not have their values set, even though cppcheck
should be possible to figure out their values. That's for another PR
though.

This was tested by running test-my-pr.py with 500 packages. The only
difference was one error message in fairy-stockfish_11.1, where cppcheck
now printed the correct size of an array instead of 2147483648 which I
assume is some kind of default value. In that package, using a constexpr
when setting enum values is common, but as mentioned, there was no
change in the number of warnings.
2020-10-22 07:45:04 +02:00
Paul Fultz II 64638d82bb
Fix issue 9945: FP: containerOutOfBounds (#2845) 2020-10-22 07:41:52 +02:00
Daniel Marjamäki 47914b9960 Crash: Add regression test 2020-10-22 07:40:06 +02:00
Daniel Marjamäki 33844b28ab Another fix for the crash 2020-10-22 06:59:13 +02:00
Daniel Marjamäki bcc7c5cd50 Use astIsPointer to avoid crashes 2020-10-22 06:55:48 +02:00
Ken-Patrick Lehrmann e4a54a24db
Fix regression in CheckCondition (#2854)
Introduced by e2a81a382f.
2020-10-20 07:56:41 +02:00
Pino Toscano 0a50d8e8f4
FileLister: ensure enough space for resulting dirent (#2850)
On some platforms, the 'd_name' field of struct dirent is not a static
fixed-sized array but a "flexarray" (i.e. a single character); in this
situation, 'd_name' points to a buffer allocated somewhere, usually
at the end of the buffer used for dirent (which is then allocated in a
bigger memory). Because of this, creating a struct dirent on stack as
buffer for readdir_r is not enough to store all the memory needed for
a dirent on those platforms.

As result, create an helper union with all the needed space, calculated
statically at build time. NAME_MAX+1 is still not a perfect option, but
it will do the job in the vast majority of cases.
2020-10-18 20:43:33 +02:00
Rikard Falkeborn 2624d791e6
Symboldatabase: Don't set unknown enum values (#2852)
Previously, if an enum value was set to a value unknown to cppcheck, the
next enum value would erroneously be set to the last set value plus one
(or zero, if no enum value had been set before). This partially fixes
Trac ticket #9647, in the sense that it no longer sets wrong values for
these enum values. Further improvements to this would be to set the
correct values instead. It also fixes the false positive mentioned in the
comments in the ticket.
2020-10-18 20:41:36 +02:00
lakshit24 3b092c17e8
removed spaces and added punctuations marks (#2849) 2020-10-18 08:31:54 +02:00
Wolfgang Stöggl fa84b30444
Enable building of Qt online-help in gui.pro (#2851)
- gui.pro: Update the path of the output file, so that it is also built
  inside the help sub-directory (add $$PWD/help/ to the path):
  -o $$PWD/help/online-help.qhc
- Use qcollectiongenerator in case of Qt version < 5.12, otherwise
  qhelpgenerator
- appveyor.yml: Add %QTDIR%\bin to PATH. This allows qhelpgenerator
  or qcollectiongenerator to be found
2020-10-18 08:07:27 +02:00
Rikard Falkeborn 33739d23aa
Fix #9941: Return value type of library functions returning unsigned (#2848)
Fix return value types of library functions returning unsigned.
Previously, the valueType of auto x = f() would be signed even if f()
was specified to return an unsigned type.

This fixes #9941, which is a regression in cppcheck 2.2 compared to 2.1.
The regression was introduced in 32df807b22.
2020-10-16 07:56:31 +02:00
Armin Müller 08cef9e815
Typos found by running "codespell" (#2846) 2020-10-15 19:24:13 +02:00
orbitcowboy 47d0be3249 windows.cfg: Added support for more interfaces 2020-10-14 23:39:15 +02:00
Wolfgang Stöggl df9f6f38be
Look for Qt online-help file also in FILESDIR (#2844) 2020-10-11 03:49:27 +02:00
Wolfgang Stöggl 2fda1646d9
Add generation of online-help to CI (#2843) 2020-10-11 03:48:34 +02:00
Daniel Marjamäki f1ce5a9101 Fixed #9929 (False positive: suspicious semicolon after macro) 2020-10-09 20:34:20 +02:00
Paul Fultz II 047c3ed6ba
Fix issue 9935: FP: knownConditionTrueFalse value flow doesn't account for virtual functions (#2839) 2020-10-09 17:21:27 +02:00
Daniel Marjamäki 586ddf74f1 Clang import; fixed ast for function call with multiple arguments 2020-10-09 07:54:16 +02:00
Daniel Marjamäki 65721dd7a9 Bug hunting; Better handling of constant 2020-10-08 17:24:35 +02:00
orbitcowboy bb6b4f9f41 wxwidgets.cfg: Improved configuration for wxStrlen 2020-10-07 13:17:32 +02:00
Daniel Marjamäki 40faca7dd9 Fix TestClangImport 2020-10-06 23:19:32 +02:00
Daniel Marjamäki 64608f4e95 clang import; fix symbol database for 'struct Fred { int a; }; int b; void f(int c, int d) { int e; }' 2020-10-06 19:06:10 +02:00
Paul Fultz II 372161c89b
Fix issue 9939: False positive: Reference to temporary returned (static variable) (#2840) 2020-10-06 09:16:54 +02:00
Georgy Komarov b90b87af5b
boost.cfg: Add support for more interfaces (#2838) 2020-10-05 09:07:47 +02:00
Steve Browne 0eb1c0cb46
Remove not-null from wxCommandEvent::SetClientData (#2837) 2020-10-05 06:44:11 +02:00