Commit Graph

910 Commits

Author SHA1 Message Date
Paul Fultz II 913dbeb8d8
Fix FP when inserting a range into a container (#3108) 2021-02-02 14:57:48 +01:00
Paul Fultz II e17d22eb87
Fix issue 10134: False positive: value is not known. Early return. (#3086) 2021-01-28 12:37:56 +01:00
IOBYTE 4e1ff86bb2
use nonneg int for varid and exprid (#3085) 2021-01-27 19:49:13 +01:00
Daniel Marjamäki 987c8a854e astyle formatting
[ci skip]
2021-01-25 22:51:50 +01:00
Paul Fultz II 0f8f207719
Remove valueFlowFwdAnalysis and update valueFlowAfterAssign to handle expressions (#3074) 2021-01-25 17:24:36 +01:00
Daniel Marjamäki 772b44d11a Fixed compiler warnings 2021-01-23 18:04:28 +01:00
Paul Fultz II c860de8565
Fix issue 8143: valueFlowCondition: before and inside while (#3045) 2021-01-23 17:52:01 +01:00
Paul Fultz II d80f2fb46f
Reapply f1cc3ad and fix performance regression (#3076) 2021-01-23 08:47:39 +01:00
orbitcowboy bb451ca289 Running astlye [ci skip] 2021-01-22 21:47:24 +01:00
Daniel Marjamäki 0fa89ff2ba Revert 14365ffc7 and f1cc3ada8, there was a performance regression 2021-01-22 10:51:46 +01:00
Daniel Marjamäki 14365ffc7c make a function static 2021-01-21 20:27:28 +01:00
Paul Fultz II f1cc3ada86
Refactor valueFlowTerminatingCondition to handle inner conditions and complex conditions (#3060) 2021-01-21 20:18:53 +01:00
Paul Fultz II d05acf3c41
Fix issue 10120: FP: containerOutOfBounds, regression (#3064) 2021-01-21 19:50:57 +01:00
Paul Fultz II 8b26ecbcdd
Extend ProgramMemory to handle expressions (#3069) 2021-01-21 19:49:37 +01:00
Paul Fultz II 25ada657da
Fix issue 9030: ValueFlow: Possible value after conditional assignment in for loop (#3059) 2021-01-18 10:12:07 +01:00
Paul Fultz II b571e9fe0b
Fix issue 10106: FP: nullPointerRedundantCheck (#3044) 2021-01-13 12:36:26 +01:00
Daniel Marjamäki 1858465bca astyle formatting
[ci skip]
2021-01-12 21:28:56 +01:00
Armin Müller 0de0a954d2
Typos found by running "codespell" (#3042) 2021-01-12 20:48:25 +01:00
Paul Fultz II b1c56d33ac
Fix issue 9133: Invalid iterator; vector::push_back, functions (#3008) 2021-01-11 18:47:38 +01:00
Paul Fultz II 678ee00fe9
Infer variables from conditions in valueFlowSubfunction (#3037) 2021-01-11 08:00:13 +01:00
Paul Fultz II a3617fe573
Fix issue 10102: False positive: knownConditionTrueFalse in for loop (#3038) 2021-01-11 07:56:16 +01:00
Daniel Marjamäki 707f1f2fbe ValueFlow: Fixed isEqual 2021-01-10 16:52:11 +01:00
Daniel Marjamäki 98c7c0af96 Fixed GCC compiler warnings 2021-01-10 15:27:42 +01:00
Daniel Marjamäki f493ce16b3 astyle formatting
[ci skip]
2021-01-10 14:46:19 +01:00
Paul Fultz II bc3f5554a4
Fix issue 8871: improve check: mismatching container size conditions (#2988) 2021-01-10 13:30:00 +01:00
Paul Fultz II c267d85640
Add generic valueflowBeforeCondition (#3001) 2021-01-08 22:55:04 +01:00
Oliver Stöneberg 96704c9971
fixed and enabled some more clang-tidy warnings (#3007) 2021-01-05 17:51:32 +01:00
Paul Fultz II e004731f1c
Fix issue 8650: ValueFlow: Track if pointer is created by '&' operator (#3011) 2021-01-05 16:56:38 +01:00
Paul Fultz II f0b5668436
Fix issue 9890: ValueFlow: known value not found (variable is changed in path that returns) (#3010) 2021-01-05 16:49:08 +01:00
Oliver Stöneberg d59abfd977
fixed clang-tidy warnings (#3006)
* clang_tidy.cmake: added clang-tidy-11 to list of executables to look for

* .clang-tidy: disabled warnings we are (currently) not interested in

* fixed clang-tidy warnings
2021-01-02 23:10:27 +01:00
Rikard Falkeborn d19454b935
Refactoring: Convert ValueType to enum class (#3005) 2021-01-02 09:30:00 +01:00
shaneasd 53734a3da1
Test for return address of reference (#2991) 2020-12-28 10:50:42 +01:00
orbitcowboy 38fc6f209d Running astye [ci skip] 2020-12-26 14:02:03 +01:00
Oliver Stöneberg 00071d09f6
split "valueFlowBailoutIncompleteVar" from more generic "valueFlowBailout" (#2976) 2020-12-26 13:48:22 +01:00
Daniel Marjamäki 8fcef7ad0d astyle formatting
ci skip
2020-12-25 08:58:12 +01:00
Paul Fultz II 7861aa00cf
Refactor afterCondition handlers into to seperate classes (#2975) 2020-12-24 20:07:46 +01:00
Paul Fultz II a770342593
Fix crash in getInitListSize (#2960) 2020-12-19 12:23:19 +01:00
Daniel Marjamäki 1744cbaf66 astyle formatting
[ci skip]
2020-12-19 08:56:46 +01:00
Paul Fultz II 626dcd0eba
Fix issue 10037: False positive when passing variables to functions by address (#2957) 2020-12-19 08:29:37 +01:00
Paul Fultz II b044f9ba96
Fix issue 9996: false negative: containerOutOfBounds with std::vector::front() and c++11 braced initializer (#2958) 2020-12-18 07:14:11 +01:00
Paul Fultz II 904d52acac
Fix issue 10004: ValueFlow: pointer value, wrongly set known value (#2931) 2020-12-03 07:15:31 +01:00
IOBYTE 43ce1607c7
fix a large number of valgrind warnings in testrunner (#2920)
Co-authored-by: Robert Reif <reif@FX6840>
2020-11-24 18:21:07 +01:00
Daniel Marjamäki 5e69def679 Code cleanup; Remove unused functions 2020-11-18 20:27:51 +01:00
Paul Fultz II e8c1c792a5
Fix issue 9987: false positive: danglingTempReference with && variable and assignment (#2907) 2020-11-17 06:52:12 +01:00
Rikard Falkeborn 324e267559
getSizeOf: Handle long double (#2888) 2020-11-11 22:51:17 +01:00
Daniel Marjamäki 7182da5c8e astyle formatting 2020-11-11 09:17:54 +01:00
Paul Fultz II bd7e915c20
Add generic reverse valueflow (#2878) 2020-11-10 16:00:55 +01:00
Daniel Marjamäki 88a35d2253 Fix CodeQL warning, Multiplication result converted to larger type 2020-11-06 19:50:05 +01:00
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