eac040a00b
Various clang-tidy fixes ( #2192 )
...
* use range loops
* removed redundant string initializations
* use nullptr
* use proper boolean false
* removed unnecessary continue from end of loop
* removed unnecessary c_str() usage
* use emplace_back()
* removed redundant void arguments
2019-09-25 15:25:19 +02:00
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
Oliver Stöneberg
Tyson Nottingham
IOBYTE
Daniel Marjamäki
Paul Fultz II
Rikard Falkeborn
Ken-Patrick Lehrmann
Sebastian
orbitcowboy
amai2012
warmsocks
PKEuS