ca5f2562fc
Fix false negatives in checkIncrementBoolean ( #2210 )
...
Detect incrementing boolean expressions involving pointer dereferences,
array element accesses, etc.
2019-09-25 13:07:39 +02:00
12f93b63a8
template simplifier: fix simplification of "< %num% %comp% %num% >" ( #2214 )
...
* template simplifier: fix simplification of "< %num% %comp% %num% >"
* fix test to not fail on 32 bit platforms
2019-09-25 12:06:29 +02:00
0011fb5a36
ExprEngine: Temporary hardcoding for calloc
2019-09-24 22:22:16 +02:00
7cf8327b31
ExprEngine: Sign extension in truncateValue
2019-09-24 20:31:12 +02:00
0471e74489
ExprEngine: Handle char literals
2019-09-24 20:11:07 +02:00
1769af4a6c
ExprEngine: Passing variable address to function
2019-09-24 19:53:33 +02:00
ba035074f0
ExprEngine: Extended value truncation
2019-09-24 13:28:14 +02:00
0df4876059
Fix issue 9367: FP knownConditionTrueFalse ( #2209 )
2019-09-24 08:15:03 +02:00
c1ff3419a6
ExprEngine: Value truncation
2019-09-23 20:28:12 +02:00
1616282f6b
Use fixed number of iterations for valueflow loop ( #2205 )
2019-09-23 19:35:39 +02:00
9025b47f82
ExprEngine: some handling of NULL pointer
2019-09-23 18:10:06 +02:00
a903aa7070
Fix issue 9351: false negative: (style) Condition '...' is always true ( #2201 )
2019-09-23 08:49:04 +02:00
bb5ac32872
Fix #7031 (improve error message for memory related warnings) ( #2204 )
...
Printout both the locations on double free errors, mismatching
alloc/dealloc and dealloc return error.
2019-09-22 21:50:02 +02:00
28d13e7567
ExprEngine: Implement basic float handling
2019-09-22 21:14:36 +02:00
df800e35d4
Fix memleak FP with return with parenthesis ( #2202 )
...
* Fix memleak FP with return with parenthesis
Fix FPs pointed out by daca@home on the following form:
void* f(void) {
void* x = malloc(1);
return(x);
}
Fix it by only skipping tokens if there is an actual match with a
variable. This allows to remove the special casing of "return;".
* Add testcase with cast
2019-09-22 19:18:31 +02:00
6e17853ea9
ExprEngine: Guess function call return value
2019-09-22 16:40:48 +02:00
5c07cfd2e8
ExprEngine: Better handling of pointer aliasing
2019-09-22 15:58:55 +02:00
ec4b7c1f4b
ExprEngine: Better handling of pointers
2019-09-22 10:56:57 +02:00
7d6fd915be
ExprEngine: Better handling of compound assignments
2019-09-21 21:15:51 +02:00
c1961cec1c
Fix issue 9362: FP: (style) Condition '(v&1)==0' is always false ( #2200 )
2019-09-21 19:53:54 +02:00
da91c139d5
ExprEngine: Passing array to function, array data might be overwritten
2019-09-21 19:34:06 +02:00
46ac0d79c1
Checkmemleakautovar: fix crash and FP ( #2196 )
...
This fixes crashes found by daca where valueType() is NULL. Also,
somewhat related, it removes warnings when casting to a type that is
unknown to cppcheck, for example, there is no longer a warning for the
following code:
void* f() {
void *x = malloc(1);
return (mytype)x;
}
2019-09-21 14:59:54 +02:00
b2cab003ff
ExprEngine: Fix output for arrays
2019-09-21 14:17:16 +02:00
3d0d3ec4c5
ExprEngine: handling array initialization with string literal
2019-09-21 11:36:34 +02:00
d6a70d27c7
Fix false negatives in checkAssignBoolToFloat and minor related improvements ( #2198 )
...
* Fix false negatives in checkAssignBoolToFloat
Detect assignments to expressions involving pointer dereferences, array
element accesses, etc.
* Pass assignment token to assignBoolToFloatError
Pass assignment token rather than boolean token to make error reporting
consistent between checkAssignBoolToFloat and checkAssignBoolToPointer,
as well as with other assignment checks in the code base.
* Make checkAssignBoolToPointer check consistent with checkAssignBoolToFloat
2019-09-21 08:24:54 +02:00
40f1635c35
Fix issue 9361: false positive: (style) Condition 'isdigit(c)!=0' is always true ( #2199 )
2019-09-21 08:19:54 +02:00
65d1e90aa3
deleted methods should be public ( #2193 )
2019-09-20 21:58:09 +02:00
b5c598cca4
added missing OVERRIDE usage and removed redundant virtual ( #2190 )
2019-09-20 21:57:16 +02:00
9028b4a81d
do not access static methods through instance ( #2189 )
2019-09-20 21:54:30 +02:00
49b7ef84d9
Fix crashes in checkleakautovar ( #2195 )
...
Crashes found by daca@home
http://cppcheck1.osuosl.org:8000/crash.html
For instance
```
2019-09-20 16:27
ftp://ftp.se.debian.org/debian/pool/main/n/nedit/nedit_5.7.orig.tar.gz
cppcheck-options: -j1 --library=posix --library=gnu --library=motif -D__GNUC__ --check-library --inconclusive --enable=style,information --platform=unix64 --template=daca2 -rp=temp temp
platform: Linux-4.19.0-6-amd64-x86_64-with-debian-10.1
python: 2.7.16
client-version: 1.1.37
cppcheck: head 1.89
head-info: 38dec6a9a#0 0x000055555564b862 in CheckLeakAutoVar::ret (this=0x7fffffffb8c0, tok=0x5555582ea9e0, varInfo=...) at lib/token.h:340
#1 0x0000555555651764 in CheckLeakAutoVar::check (this=0x7fffffffb8c0) at build/checkleakautovar.cpp:714
#2 0x0000555555652b37 in CheckLeakAutoVar::runChecks (this=<optimized out>, tokenizer=0x7fffffffc3a0, settings=<optimized out>, errorLogger=<optimized out>) at lib/checkleakautovar.h:108
#3 0x00005555556bc833 in CppCheck::checkNormalTokens (this=0x7fffffffce50, tokenizer=...) at build/cppcheck.cpp:732
#4 0x00005555556bf694 in CppCheck::checkFile (this=0x7fffffffce50, filename=..., cfgname=..., fileStream=...) at build/cppcheck.cpp:542
#5 0x00005555556c1cb8 in CppCheck::check (this=this@entry=0x7fffffffce50, path="temp/nedit-5.7/source/shell.c") at /usr/include/c++/8/bits/basic_string.h:936
#6 0x00005555557fd63f in CppCheckExecutor::check_internal (this=0x7fffffffdbd0, cppcheck=..., argv=<optimized out>) at cli/cppcheckexecutor.cpp:884
#7 0x00005555557fda92 in CppCheckExecutor::check (this=this@entry=0x7fffffffdbd0, argc=argc@entry=14, argv=argv@entry=0x7fffffffdf58) at cli/cppcheckexecutor.cpp:198
#8 0x00005555555e6358 in main (argc=14, argv=0x7fffffffdf58) at cli/main.cpp:95
DONE
```
2019-09-20 21:29:17 +02:00
6c59957109
ExprEngine: Better handling of conditions
2019-09-20 21:27:51 +02:00
007b5d3e8d
Fix #9343 (memleak FP when return with cast) ( #2162 )
...
This was most likely introduced when the checks were changed to run on
the full tokenlist instead of the simplified one.
Take care to warn about cases where casts destroy the pointer, such as
uint8_t f() {
void* x = malloc(1);
return (uint8_t)x;
}
2019-09-20 15:09:27 +02:00
049f6475ee
astyle formatting
...
[ci skip]
2019-09-20 15:07:27 +02:00
ad8abdb0c3
Add impossible values to ValueFlow ( #2186 )
...
* Add impossible category
* Replace values
* Try to adjust known values
* Add ! for impossible values
* Add impossible with possible values
* Remove contradictions
* Add values when the branch is not dead
* Only copy possible values
* Dont bail on while loops
* Load std lib in valueflow
* Check for function calls
* Fix stl errors
* Fix incorrect impossible check
* Fix heap-after-use error
* Remove impossible values when they are lowered
* Show the bound and remove overlaps
* Infer conditions
* Dont push pointer values through dynamic_cast
* Add test for dynamic_cast issue
* Add shifttoomanybits test
* Add test for div by zero
* Add a test for issue 9315
* Dont make impossible value inconclusive
* Fix FP with shift operator
* Improve handleKnownValuesInLoop for impossible values
* Fix cppcheck warning
* Fix impossible values for ctu
* Bailout for streams
* Check equality conditions
* Fix overflows
* Add regression test for 9332
* Remove duplicate conditions
* Skip impossible values for invalid value
* Check for null
* Rename bound to range
* Formatting
2019-09-20 15:06:37 +02:00
8c5cf8c029
Fixed #9046 syntaxError ( #2180 )
...
* Fixed #9046 syntaxError
* fix another syntax error
* fix some more syntax errors
2019-09-20 12:35:01 +02:00
8fba2af267
Try to make Travis happy
2019-09-20 07:04:58 +02:00
6c38b69e11
Rename dataIndex to mDataIndex according to our naming conventions
2019-09-20 06:12:35 +02:00
de9f489b08
use range loops / constness ( #2181 )
...
* use range loops / constness
* platform.cpp: avoid shadowed variable
2019-09-19 20:29:33 +02:00
5f0f8afc27
ExprEngine: Print some 'debug' output
2019-09-19 20:18:55 +02:00
bf55e835aa
Windows testrunner: Add testexprengine.cpp ( #2184 )
...
Add export of executeAllFunctions() in exprengine.h
2019-09-19 19:40:00 +02:00
745c91106e
Removed unused Data::dump
2019-09-19 09:16:18 +02:00
b37b0c0f78
Running astyle [ci skip]
2019-09-19 08:03:29 +02:00
d97c826319
Compile fix for VisualStudio
2019-09-18 22:07:42 +02:00
5355df8b6e
Add exprengine.cpp to VisualStudio solution
2019-09-18 21:56:31 +02:00
5a6084fbec
Map #warning to #pragma message for VisualStudio
2019-09-18 21:50:23 +02:00
b66d701599
Fix Cppcheck warnings
2019-09-17 22:28:36 +02:00
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
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
742c437953
Fixed #9354 (Unknown macro is not reported and then Cppcheck is silent about issues)
2019-09-13 13:05:48 +02:00
068b0b246c
Fix issue 9352: FP constParameter and constVariable for auto& in combination with ternary ?: operator ( #2173 )
2019-09-13 08:33:30 +02:00
fc25fe83bd
ctu: fixed error locations
2019-09-12 19:20:13 +02:00
4e076e1854
Fix travis build
2019-09-12 19:06:57 +02:00
da363c7d6f
Fixed #9349 (FP ctuuninitvar for pointer dereferenced inside sizeof)
2019-09-12 13:29:52 +02:00
b8e3d3b982
CTU: Add 'column'
2019-09-12 10:46:33 +02:00
8855978f8a
Import project: Ignoring paths better
2019-09-12 09:32:24 +02:00
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
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
a56bc006b7
Fixed a typo in lib/checkother.cpp. Corrected spelling errors found by codespell. ( #2170 )
2019-09-11 19:21:38 +02:00
bee30b0ca2
astyle formatting
...
[ci skip]
2019-09-10 19:42:17 +02:00
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
2595b82634
Fix issue 9348: FP uninitvar for pointer passed to memcpy ( #2167 )
2019-09-10 19:40:08 +02:00
ddb1f1b5ce
Try to fix issue 9341: daca crash: isContainerSizeChangedByFunction ( #2168 )
2019-09-10 19:39:44 +02:00
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
9753e18ebd
Fix issue 9340: AST broken: endless recursion from '{' ( #2161 )
2019-09-09 21:35:49 +02:00
59fdbd8435
Fix #9337 (Syntax error on valid C++) ( #2152 )
2019-09-07 09:09:04 +02:00
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
70cad280ea
Fix issue 9319: FP knownConditionTrueFalse related to aggregate initialization of struct ( #2147 )
2019-09-05 19:36:45 +02:00
9e140831eb
Fix issue 9329: FP knownConditionTrueFalse - vector modified by function calls ( #2145 )
2019-09-05 16:42:26 +02:00
e657cf4073
Fix issue 9320: False positive knownConditionTrueFalse related to truncation ( #2144 )
2019-09-05 15:15:58 +02:00
a9fda3f488
Clarify redundantVarAssignment warnings
2019-09-04 10:55:41 +02:00
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
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
55a78f482b
Fix issue 9293: false negative: uninitvar
2019-09-03 06:46:34 +02:00
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
af449779f0
astyle formatting
...
[ci skip]
2019-09-03 06:43:08 +02:00
88d194214f
Fix FP with invalidContainerRef ( #2141 )
2019-09-03 06:41:35 +02:00
5c172bb55a
Fix issue 8897: Huge array initializations ( #2135 )
...
* Fix issue 8897: Huge array initializations
iscpp11init would take a lot of time when parsing huge arrays.
This patch add memoization to keeps track that we are parsing an array,
and allows to propagate the result without re-parsing the array for each
of its members.
* Use enum class instead of enum
2019-09-02 20:31:01 +02:00
e9f8dddabe
Set version to 1.89.99/1.90 dev
2019-09-02 15:44:40 +02:00
7d63bdee6f
astyle formatting
...
[ci skip]
2019-09-02 06:59:07 +02:00
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
fd403bf7e6
template simplifier: only add recursive instantiation if its arguments are a constant expression ( #2138 )
2019-09-02 06:51:19 +02:00
005765a561
Clarify valueFlowUninit ( #2136 )
...
https://github.com/danmar/cppcheck/pull/2129#issuecomment-526916467
2019-09-02 06:50:56 +02:00
7a75aa084b
Fix crash in CheckUninitVar ( #2129 )
...
http://cppcheck.osuosl.org:8000/ycmd
```
2019-08-30 23:21
ftp://ftp.se.debian.org/debian/pool/main/y/ycmd/ycmd_0+20181101+git600f54d.orig.tar.gz
cppcheck-options: -j1 --library=posix --library=gnu --library=qt --library=python --library=googletest --library=boost -D__GNUC__ --check-library --inconclusive --enable=style,information --platform=unix64 --template=daca2 -rp=temp temp
platform: Linux-4.15.0-58-generic-x86_64-with-Ubuntu-18.04-bionic
python: 2.7.15+
client-version: 1.1.31
cppcheck: head 1.88
count: Crash! 83
elapsed-time: -11.0 61.2
head results:
Checking temp/ycmd-0+20181101+git600f54d/ycmd/tests/clang/testdata/completion_fixit.cc: __GNUC__=1...
Program received signal SIGSEGV, Segmentation fault.
CheckUninitVar::valueFlowUninit (this=this@entry=0x7fffffffb350) at build/checkuninitvar.cpp:2376
2376 if (!tok->variable())
#0 CheckUninitVar::valueFlowUninit (this=this@entry=0x7fffffffb350) at build/checkuninitvar.cpp:2376
#1 0x00005555556901ac in CheckUninitVar::runChecks (this=<optimized out>, tokenizer=0x7fffffffbcb0, settings=0x7fffffffcd10, errorLogger=<optimized out>) at lib/checkuninitvar.h:68
#2 0x00005555556a2210 in CppCheck::checkNormalTokens (this=this@entry=0x7fffffffcaf0, tokenizer=...) at build/cppcheck.cpp:730
#3 0x00005555556a6ee2 in CppCheck::checkFile (this=this@entry=0x7fffffffcaf0, filename="temp/ycmd-0+20181101+git600f54d/ycmd/tests/clang/testdata/completion_fixit.cc", cfgname="", fileStream=...) at build/cppcheck.cpp:540
#4 0x00005555556aad4c in CppCheck::check (this=this@entry=0x7fffffffcaf0, path="temp/ycmd-0+20181101+git600f54d/ycmd/tests/clang/testdata/completion_fixit.cc") at build/cppcheck.cpp:195
#5 0x00005555557ef167 in CppCheckExecutor::check_internal (this=this@entry=0x7fffffffd880, cppcheck=..., argv=argv@entry=0x7fffffffdc08) at cli/cppcheckexecutor.cpp:884
#6 0x00005555557efa9a in CppCheckExecutor::check (this=0x7fffffffd880, argc=17, argv=0x7fffffffdc08) at cli/cppcheckexecutor.cpp:198
#7 0x00005555555b1d1b in main (argc=17, argv=0x7fffffffdc08) at cli/main.cpp:95
```
2019-09-01 14:51:40 +02:00
9163248e0c
Fixed linker errors on Windows
2019-09-01 14:44:03 +02:00
4ede39a9b7
1.89: Set version
2019-09-01 12:16:33 +02:00
c32261c737
Updated copyright year
2019-09-01 11:49:43 +02:00
2c656d6586
Issue 9255: Prevent infinite recursion in parsedecl ( #2134 )
2019-09-01 11:36:02 +02:00
3a1aec8850
template simplifier: ignore friend templates ( #2122 )
...
* template simplifier: ignore friend templates
friend templates were interpreted as variable templates
* fix cppcheck warning
2019-09-01 09:56:33 +02:00
d918f76a0d
Remove useless check introduced by 717aa826d8 ( #2130 )
...
I was confused by the naming in the forum entry (this/that). This would
be a pointer, there's no point checking for it there.
2019-09-01 09:53:45 +02:00
d1c6cb9aa5
Fix issue 9304: boolean type of ternary ( #2131 )
...
* Add test cases for 9304
* Fix 9304
2019-09-01 09:51:53 +02:00
121093658d
Fix issue 9202: False positive: std::array, size is a constant ( #2132 )
2019-09-01 09:44:34 +02:00
717aa826d8
Fix false positive in initializationListUsage ( #2128 )
...
https://sourceforge.net/p/cppcheck/discussion/general/thread/d5b690ef19/
Check that we warn only about using the initializer list when we assign
the object being constructed.
2019-08-31 12:27:07 +02:00
e8435b9ecb
Fix issue 9306: Adjust shiftTooManyBitsSigned for C++14 ( #2127 )
2019-08-31 07:40:57 +02:00
1a25d3f9ec
astyle formatting
...
[ci skip]
2019-08-30 18:34:14 +02:00
0b9e823fc8
Fix issue 9305: False positive uninitvar - struct initialized via function ( #2123 )
2019-08-30 18:32:45 +02:00
2942be53f7
Add more tests for valueFlowUninit ( #2124 )
2019-08-30 08:41:17 +02:00
03fe6795bf
Fix issue 9302: FP uninitvar - struct accessed via pointer ( #2121 )
2019-08-29 08:38:50 +02:00
28a95802a2
template simplifier: fix syntax error false positive (an expression can't be a template) ( #2115 )
...
https://stackoverflow.com/questions/57590411/cppcheck-syntax-error-with-using-typedef
2019-08-27 06:37:58 +02:00
a47633c4b9
Added TODO comment
2019-08-26 06:56:29 +02:00
4bd9d76a4c
Try to make Travis happy
2019-08-25 10:24:13 +02:00
82eec11898
Created redundantInitialization id
2019-08-25 09:45:39 +02:00
324e5e581b
Redundant assignments: Fix false positive when reassignment expression contains assembler
2019-08-24 20:15:52 +02:00
0dfda5eb4a
Try to make Travis happy
2019-08-24 15:43:31 +02:00
996daaee4e
STL: Fixed outOfBounds false positive
2019-08-24 15:40:29 +02:00
9d26be8380
Fixed #5259 (Improve check: Uninitialized variable not reported when used in array initialization)
2019-08-24 14:43:35 +02:00
5c488b9519
Fix issue 9190: FP uninitvar for struct member ( #2112 )
...
* Fix issue 9190: FP uninitvar for struct member
* Add more test cases
* Fix false negative
2019-08-24 11:27:47 +02:00
35fb55d76c
Fixed #5259 (Improve check: Uninitialized variable not reported when used in array initialization)
2019-08-24 08:01:55 +02:00
9cbdc262f6
Fix Cppcheck internal warning
2019-08-23 16:56:28 +02:00
d3f7fc92f2
Quick fix to make Travis happy
2019-08-23 15:23:49 +02:00
50c6af5e5d
astyle formatting
...
[ci skip]
2019-08-23 10:19:29 +02:00
7061cc334b
RedundantAssignment: Don't warn for initialization with {0}
2019-08-23 08:51:16 +02:00
d122b1c722
Fix issue with __declspec and final ( #2107 )
...
* Add missing Qt macros
Add two Qt macros that were missing
* Fix issue with __declspec and final
This change is a bit naive but it fixes the issues I was having when combining __declspec(dllexport) and final classes. Without the fix I get errors along the line of "The code 'class x final :' is not handled. You can use -I or --include to add handling of this code. "
2019-08-23 06:43:02 +02:00
fd3cb24973
leakNoReturnVar: Don't break early ( #2095 )
...
There seems to be no reason for stopping checking the scope if a call to
free() is seen (or fclose() or realloc()), so just continue checking.
Also, if there are multiple arguments, check all, perhaps there are more
memory leaks to warn about.
2019-08-23 06:33:00 +02:00
c0a8d628b9
Fix issue 6010: Uninitialized inner struct ( #2098 )
...
* Fix issue 6010: Uninitialized inner struct
* Show to root variable that is unitialized
* Warn on pointer dereferences
2019-08-23 06:23:20 +02:00
6815e38879
TokenList::insertTokens: copy column also
2019-08-20 20:53:44 +02:00
4b231c53a4
Fixed #9287 and #9288 (Syntax error on valid C++ code) ( #2104 )
2019-08-20 20:25:18 +02:00
ef47d3d304
Fixed #9286 (FP: syntax error: { .abc.a = 1)
2019-08-20 13:56:38 +02:00
474fed453e
memleak: Fixed false negative for sample
2019-08-18 19:45:39 +02:00
a5ba82c2d3
Fixed #9260 (--template=gcc does not work correctly with -j)
2019-08-18 16:33:32 +02:00
d95f29b23a
Fixed test/cli
2019-08-18 12:51:32 +02:00
2d9a131817
Refactoring: Rename variables. Do not use leading _. Renamed 'col' to 'column'
2019-08-18 12:19:05 +02:00
de9b928d98
ErrorLogger: add 'column' in serializer/deserializer
2019-08-18 09:06:40 +02:00
04e3884ff6
xml: Add column attribute in <location>
2019-08-18 08:37:56 +02:00
c3a27eb8c1
Fix a few cppcheck internal warnings
2019-08-17 16:02:58 +02:00
a17f2a6f05
Compiling/Installing : The CFGDIR parameter was removed. Use FILESDIR instead.
2019-08-17 10:53:07 +02:00
04bb6c0d1f
template simplifier: fix new daca crashes ( #2093 )
2019-08-17 07:38:07 +02:00
ee7fe3aaa1
Fix FP: Unitialized variable when using a pointer
...
This fixes the FP in cases like this:
```cpp
void f() {
bool b;
bool * x = &b;
if (x != nullptr)
x = 1;
}
```
It tracks the indirection of the uninit value in valueflow.
2019-08-17 07:36:41 +02:00
3e0d1141d3
Fix issue 9277: FP: Dont warn for knwon conditions in if constexpr ( #2085 )
2019-08-16 07:56:39 +02:00
3aef0c9bd3
Fix issue 8715: regression uninitvar not detected ( #2092 )
2019-08-16 07:48:54 +02:00
ef714225bb
Use library to track container lifetimes
2019-08-15 21:14:54 +02:00
95ac8db584
TemplateSimplifier: Set column number for expanded tokens
2019-08-15 15:22:56 +02:00
f33a8a417f
Put 'isExpandedMacro' info in the dump files
2019-08-15 14:24:56 +02:00
a57d22d2d9
astyle formatting
...
[ci skip]
2019-08-15 10:46:16 +02:00
af214e8212
Fix issue 8825: ValueFlow: uninitialized struct member ( #2087 )
...
* Pass uninit value across pointers
* Add more testing
2019-08-15 10:44:55 +02:00
fc1d5b187f
leakNoVarFunctionCall: Use AST more ( fix #9252 ) ( #2086 )
...
Use the AST a little bit more to improve the check. In order to do so,
rewrite the check to work from the outer function first and then check
the arguments, instead of the other way around.
It also fixes Trac ticket #9252 , no warning is now given for
void* malloc1() {
return(malloc1(1));
}
This FP seems to be common in daca results.
It also makes it possible to improve handling of casts, for example
cppcheck now warns about
void f() {
strcpy(a, (void*) strdup(p));
}
But not for
char* f() {
char* ret = (char*)strcpy(malloc(10), "abc");
return ret;
}
These FP/FN were introduced when the check was switched to use the
simplified token list.
2019-08-14 22:01:40 +02:00
f139558d90
Dmake cleanups ( #2077 )
...
* dmake: Refactor object files to separate function
No functional change.
* dmake: Use range for loops
No functional change.
* Add all external cpp files instead of open coding
No functional change.
* Remove duplicate check.h in lib.pri HEADERS
* Add missing newline
No functional change, but the readability of the generated Makefile is
slightly improved.
2019-08-14 20:53:51 +02:00
4f76588f98
Fix issue 9275: False positive: Non-local object uses local variable ( #2084 )
2019-08-14 20:09:33 +02:00
0c1dff5c93
Fix issue 9268: false negative: (style) Condition '...' is always true ( #2080 )
...
* Fix issue 9268: false negative: (style) Condition '...' is always true
* Fix copy and paste mistake
2019-08-14 06:34:27 +02:00
13df5b2413
Fix FP with negative index and negated condition ( #2081 )
2019-08-14 06:32:31 +02:00
d4549217d0
Renamed safeClassRefMember => unsafeClassRefMember
2019-08-13 20:58:31 +02:00
ed7edc6d2a
Improve warning message
2019-08-13 20:42:25 +02:00
41f8c1b281
Fixed #9271 (Safe classes: Class that store references)
2019-08-13 20:40:48 +02:00
ffcceb097e
Memleak: Refactor check to separate function ( #2079 )
...
This makes all the checks in CheckMemoryLeakNoVar separate functions to
improve readability.
2019-08-13 13:00:59 +02:00
c0c6f92221
Fix issue 8431 and 8776: Size of constant string
...
Fixes these cases:
```cpp
void f(void) {
const std::string msg="xyz";
if(!msg.empty()){} // Always true
}
```
And out of bounds access:
```cpp
#include <string>
char fstr1(){const std::string s = "<a><b>"; return s[42]; }
wchar_t fwstr1(){const std::wstring s = L"<a><b>"; return s[42]; }
```
2019-08-12 20:24:16 +02:00
68e8253920
Fix issue 8313 and 7326: Track values of pointer aliases in valueflow
2019-08-12 12:58:53 +02:00
aec217fede
astyle formatting
...
[ci skip]
2019-08-12 12:54:25 +02:00
cd36f8ed0a
Fix #9253 : leakNoVarFunctionCall: do not warn if freopen opens standard stream ( #2076 )
...
This fixes false positives from daca@home where freopen is used to
reopen a standard stream. There is no longer a warning for
void f() {
assert(freopen("/dev/null", "r", stdin));
}
2019-08-12 12:53:59 +02:00
9aa97cbb95
Fix issue 8296: ValueFlow: value not set in conditional scope in subfunction ( #2071 )
...
* Fix issue 8296: ValueFlow: value not set in conditional scope in subfunction
* Refactor condition checkingg
* Make test case TODO
2019-08-11 15:39:37 +02:00
0edc4feb57
Try to make Appveyor happy
2019-08-10 08:46:27 +02:00
5fc5e3728d
template simplifier: refactor TemplateSimplifier::TokenAndName into a… ( #2073 )
...
* template simplifier: refactor TemplateSimplifier::TokenAndName into a class
assert when more than one family flag is set
* fix function parameter names
2019-08-10 08:42:12 +02:00
6a260929e2
CLI: error id from addon is <addon>-<id>
2019-08-10 07:43:47 +02:00
0fbbe2ff23
Refactor load/write of cppcheck project. Reuse same string constants in cli and gui.
2019-08-09 21:15:02 +02:00
785cc69644
Typos found by running "codespell" ( #2072 )
2019-08-08 21:05:28 +02:00
bd02ca5ccb
Fix issue 9207: Not detected 'always true' and unreachable code
2019-08-08 07:46:47 +02:00
c6c50567cf
Fix #9250 (Regression: crash in gcc testsuite) ( #2067 )
...
* Fix #9250 (Regression: crash in gcc testsuite)
* fix cppcheck warning
2019-08-07 08:05:02 +02:00
cb0b057595
8706 ( #2066 )
...
* 8706
* Add test case for #8706
2019-08-07 08:04:10 +02:00
9ec8886898
Use std::any_of in token.h ( #2065 )
...
[lib/token.h:964]: (style) Consider using std::any_of algorithm instead of a raw loop.
2019-08-07 08:02:07 +02:00
aaeec462e6
Re-enable valueFlowSubFunction ( #2063 )
...
* Re-enable valueFlowSubFunction
* Formatting
* Skip ternary operators in subfunctions
* Fix test with iostreams
* Fix FP with multiple parameters
2019-08-05 16:26:32 +02:00
ebcca4edd1
Improve --debug-warnings output for 'auto' tokens without type. Do not report that prematurely before the type is set properly.
2019-08-05 13:42:06 +02:00
20278d9c92
Clarify signConversion warning message
2019-08-05 12:41:08 +02:00
ffdd2dc793
Fix issue 8924: Re-enable valueFlowTerminatingCondition
2019-08-05 07:18:06 +02:00
7ebc9d1b5f
Fix #9249 (Syntax error on valid C++) ( #2062 )
2019-08-04 10:24:44 +02:00
510748134f
Fixed #9234 (FP unreadVariable - assignment via iterator)
2019-08-04 10:21:16 +02:00
ce53931d00
Fixed #9251 (False positive: unininitialized variable (multi variables))
2019-08-03 21:12:34 +02:00
cdc602e1be
Fixed #9137 (Tokenizer: Wrong handling of volatile pointer)
2019-08-03 12:28:50 +02:00
c03df8e6b4
SymbolDatabase: Improved matchParameter for containers
2019-08-03 10:10:40 +02:00
2da83df37b
Fix #9246 (Syntax error on C++ code) ( #2061 )
2019-08-03 08:15:06 +02:00
f02636e995
Refactoring: Convert enums to enum classes
2019-08-02 21:14:29 +02:00
d2b9c1f15a
Fix some bugs in new Scope Calculation code ( #2060 )
...
* Fix for too much information in scope name
When the scope calculation encounters code such as
"friend class X::Y;"
or
"template<> class X<void> {"
it will now reset the additional name component of the scope that is about to be opened.
* Made sure new scope name is reset after being used
2019-08-02 19:55:08 +02:00
e66e6549ee
SymbolDatabase: Improved ValueType::matchParameter handling of containers
2019-08-02 15:59:22 +02:00
26b0ea52ed
SymbolDatabase: Simplify code
2019-08-02 15:41:18 +02:00
0d1685cd29
Fix #9178 example with instantiation ( #2059 )
2019-08-02 07:53:39 +02:00
29596baa92
Refactoring: Convert enum Direction to enum class
2019-08-01 20:56:02 +02:00
7eaa49fd5b
Refactoring SymbolDatabase::findFunction. No functional change is intended.
2019-08-01 17:53:14 +02:00
81db8fda18
SymbolDatabase: Code cleanup in findFunction
2019-08-01 17:29:25 +02:00
25a13d061c
Refactoring SymbolDatabase::findFunction
2019-08-01 16:14:00 +02:00
f95fdd80dd
SymbolDatabase: Refactoring findFunction
2019-08-01 14:30:29 +02:00
2a17b897c5
SymbolDatabase: Use ValueType::matchParameter for *var parameters
2019-08-01 13:29:44 +02:00
dbddc321e8
SymbolDatabase: Try to match function parameters with unknown types
2019-08-01 13:25:03 +02:00
f6726b76ae
Fix 9215 (add tilde for missing destructor override warning) ( #2057 )
2019-08-01 10:43:45 +02:00
8a934805ed
Convert InvalidValueType to enum class
2019-07-31 22:56:16 +02:00
b0fbbb5aa7
Convert SHOWTIME_MODES to enum class
2019-07-31 22:35:51 +02:00
8deb855b41
Fix ValueType::matchParameter for 'const float *' => 'signed long long'
2019-07-31 18:55:55 +02:00
91ca6165eb
SymbolDatabase: Use ValueType::matchParameter for expression parameters
2019-07-31 18:35:56 +02:00
70ac607a5c
SymbolDatabase: extend usage of ValueType::matchParameter for variable parameters
2019-07-31 18:25:47 +02:00
c51f44ce4c
SymbolDatabase: extend usage of ValueType::matchParameter for variable parameters
2019-07-31 18:24:15 +02:00
1eb5f2266c
ValueType::matchParameter: Fix matching of char** and void*
2019-07-31 16:23:50 +02:00
a3dc2db77a
SymbolDatabase: Use ValueType::matchParameter for variable address parameters
2019-07-31 12:38:36 +02:00
039d49bcb1
Improve ValueType::matchParameter for pointers with different types
2019-07-31 12:12:17 +02:00
35a3a34632
Revert "SymbolDatabase: Use ValueType::matchParameter"
...
This reverts commit cea00a8e09
2019-07-31 12:07:07 +02:00
cea00a8e09
SymbolDatabase: Use ValueType::matchParameter
2019-07-31 11:20:43 +02:00
a9bdf99e07
std.cfg: Added *experimental* support for math constants liken M_PI. These are *NOT* standard, but they are supported by GCC/Clang and VS.
2019-07-31 11:11:01 +02:00
728ac6ae2e
SymbolDatabase: Use ValueType::matchParameter for char literal parameters
2019-07-31 09:35:32 +02:00
e629f9a90f
Calculate token scopes in advance rather than as the tokenlist is iterated ( #2038 )
...
* Removed redundant scope calculation
* Add scope propagation code to insertToken
* Add relevant scope code to Token class
* Add code to calculate the scope of Tokens
* Add calculateScopes method to class
* Add missing include for shared_ptr
2019-07-31 09:19:27 +02:00
9436f72a94
Fix daca dnsdist crash ( #2053 )
2019-07-31 09:18:43 +02:00
e58e51ee14
SymbolDatabase::findFunction: For string literal, a std::string parameter is a better match than a void* parameter
2019-07-30 21:20:01 +02:00
f5c269a191
SymbolDatabase: Use ValueType::matchParameter for string literal parameters
2019-07-30 21:02:35 +02:00
d5d50d9b17
ValueType::matchParameter: Improved constness matching
2019-07-30 09:19:51 +02:00
914430dede
Appveyor: A quick fix to make Appveyor happy, revert the changes
2019-07-30 07:59:28 +02:00
88e3199372
SymbolDatabase: Use ValueType::matchParameter for numeric literal parameters
2019-07-30 07:48:14 +02:00
bf219aecde
SymbolDatabase::findFunction: Use ValueType::matchParameter for expression parameters
2019-07-30 07:14:05 +02:00
f13b1a0bce
SymbolDatabase: Use ValueType::matchParameter for boolean parameters
2019-07-29 22:58:12 +02:00
ed5ae7c5fa
SymbolDatabase::findFunction: Use ValueType::matchParameter for float literal parameters
2019-07-29 21:53:39 +02:00
cccbfaa0e4
SymbolDatabase::findFunction: Use getArguments utility function
2019-07-29 21:17:31 +02:00
3ad9d6a1ad
Make the code a bit more robust
2019-07-29 20:57:16 +02:00
f63011c219
Try to fix daca@home crashes
2019-07-29 19:06:41 +02:00
9e738db435
SymbolDatabase: expand usage of ValueType::matchParameter for non-pointer variables
2019-07-29 18:46:50 +02:00
3066c0653c
Fixed #8668 (SymbolDatabase: Wrong findFunction match for const pointer argument)
2019-07-29 18:14:23 +02:00
607b3daca8
ValueFlow: Improve bailout for structs etc in loops
2019-07-29 15:51:48 +02:00
a1214348c0
Fixed #8974 (false negative regression about never used variable)
2019-07-29 08:49:19 +02:00
07ac6c5f08
Fix ternary operator simplification to accept template parameters. ( #2048 )
...
Also simplify decltype of bool and numeric literals in template
arguments.
2019-07-28 21:52:52 +02:00
badc573b80
Fix #9224 (Performance regression in template parsing: 250x - 1200x slower) ( #2046 )
2019-07-28 09:25:18 +02:00
e8ec6e6f11
Fixed #8349 (Noisy nullPointerRedundantCheck)
2019-07-27 20:03:06 +02:00
0324bbf63c
dmake: Fix check of last header file in lib.pri ( #2045 )
...
Since the number of test files is larger than the number of lib files,
this only caused an extra harmless '\' being printed after the last
header file in lib.pri. If the number of test files would have been
smaller than the number of lib files, the generated lib.pri would have
been broken.
2019-07-27 09:45:04 +02:00
1c75257212
Token::hasKnownIntValue: Fix when there is one possible int value and one known BUFFER_SIZE value, it should return false.
2019-07-27 08:25:07 +02:00
f95d193e22
Fix #8282 (memleak FP when returning std::pair) ( #2039 )
2019-07-26 07:03:58 +02:00
ee28a45db4
Fix issue 9235: new crash in astutils isVariableChanged from endless recursion ( #2040 )
2019-07-26 07:03:21 +02:00
b049fd9303
Improve propogation of lifetimes of function arguments
...
This will now warn for cases like this:
```cpp
int* f(int * x) {
return x;
}
int * g(int x) {
return f(&x);
}
````
2019-07-26 07:02:07 +02:00
a69a570505
Fix FP leakVarNotUsed with freopen() and stdin ( #2034 )
...
One usecase for freopen() is to redirect input and output streams to
files. For that, the return value is not needed.
2019-07-25 21:09:23 +02:00
9009eeb83d
Tweak Function::isSafe()
2019-07-25 20:52:24 +02:00
4611cbb5bb
One more fix for Function::isSafe
2019-07-25 17:31:52 +02:00
09be07f2b2
Fix Function::isSafe
2019-07-25 17:28:32 +02:00
45d1ca6f7c
Safe checks: Clarify a warning message
2019-07-25 17:19:51 +02:00
744a94ad5a
Fix issue 9231: FP constParameter - argument passed parent ctor ( #2032 )
2019-07-24 20:59:58 +02:00
999d2f797c
Fix #9225 (Crash on valid C++14 code) ( #2031 )
...
* Fix #9225 (Crash on valid C++14 code)
This only fixes the crash. Specialization of nested templates is still
broken.
* fix cppcheck warnings
* fixed another cppcheck warning
2019-07-24 19:20:19 +02:00
bbcffce529
Fixed #9062 (False positive "condition is always true")
2019-07-24 19:16:35 +02:00
e11dcc609b
Fixed #7758 (Function array is seen as Uninitialized)
2019-07-24 18:20:23 +02:00
7c0b011c05
Fixed #9230 (Improve check: integer conversion overflow in return)
2019-07-24 16:17:52 +02:00
2da75d5af4
Split up Cppcheck attribute. low and high values can be specified separately and they can be used for variables also.
2019-07-24 15:08:26 +02:00
641b350cf7
astutils.h: Remove conflicting function declaration for isAliased()
...
This function was made static with commit 6c82685fbf
2019-07-24 13:23:54 +02:00
fb7f18ddea
ValueFlow: fix false detection of duplicate values
2019-07-24 12:30:33 +02:00
cab9f61b79
safe checks: Handle float parameters
2019-07-24 12:09:13 +02:00
e0738c48d2
simplify code
2019-07-24 11:40:51 +02:00
10be2a1941
Safe checks: container parameters
2019-07-24 11:39:35 +02:00
6c82685fbf
Fixed compiler warnings
2019-07-24 11:01:38 +02:00
bb52a63c4e
Add check for const variables
...
When a local reference is declared, this will check if that local reference can be declared as `const`.
2019-07-24 09:59:01 +02:00
4c3191e577
Lower recursion limit when using asan ( #2013 )
2019-07-24 09:57:53 +02:00
753efb4c9b
Function::isSafe: handle global/namespace functions better
2019-07-24 08:23:05 +02:00
3ec45acc43
astyle formatting
...
[ci skip]
2019-07-24 08:22:12 +02:00
3ec3bd52e0
Fix FP when using a pointer to a container ( #2029 )
2019-07-24 00:04:49 +02:00
ab0fcc7640
Fix issue 9216: reset() method confusion ( #2025 )
...
* Fix issue 9216 with smart pointer reset
* Check for arrow
2019-07-23 22:45:58 +02:00
60b670babd
Fix issue 9219: False positive, returnDanglingLifetime ( #2026 )
...
* Check for pointer deref for container methods
* Formatting
2019-07-23 21:59:05 +02:00
5ad5cfcc29
Fix #9217 (Regression: Memory explodes in simplifyTemplateAliases) ( #2021 )
...
* Fix #9217 (Regression: Memory explodes in simplifyTemplateAliases)
* fix use after free when nothing was copied
2019-07-23 21:28:24 +02:00
4fb6c27276
Modernize: Use enum class
2019-07-23 14:29:02 +02:00
680fbfe612
Fix Cppcheck warning, unused value
2019-07-23 14:10:34 +02:00
681bd0a911
GUI: Better settings for extended safe checks
2019-07-23 11:54:38 +02:00
74bd2aa680
Use range for loop
2019-07-22 12:24:16 +02:00
a81c39af09
Replace 'unsigned' with 'nonneg'
2019-07-22 11:25:51 +02:00
7ed3db7b32
astyle formatting
...
[ci skip]
2019-07-22 10:38:17 +02:00
8cd1d5a47d
Use library for memleak checks ( #2002 )
...
* Use library for memleak checks
Change memleakOnRealloc and leakReturnValNotUsed to use library
configuration instead of hardcoding "realloc".
In order to do so, some care needs to be taken when matching for a
reallocation function, since it can no longer be assumed that the input
to be allocated is the first argument of the function. This complicates
getReallocationType() and checkReallocUsage() but is necessary in order
to handle for example freopen() properly.
Also, refactor memleakOnRealloc check to reduce duplicated code when
checking "a" and "*a". When doing so, extending the check to look for
arbitrary number of "*" can be done for free (just change an if
statement to a while statement). Most likely, this is an unusual case in
real world code.
* Remove redundant whitespace in Token::Match()
* Run on simplified checks
* Fix cppcheck warning
2019-07-22 10:37:36 +02:00
Tyson Nottingham
IOBYTE
Daniel Marjamäki
Paul Fultz II
Rikard Falkeborn
Oliver Stöneberg
Ken-Patrick Lehrmann
Sebastian
orbitcowboy
amai2012
warmsocks
PKEuS
Thomas Niederberger
Armin Müller
rebnridgway