68062e3702
Fixed #8954 (false positive: Local variable x shadows outer variable)
2019-02-23 16:22:22 +01:00
fd3c1fd040
Fix issue 1777: Undefined Behavior: Comparing pointers to different objects
...
This uses the lifetime analysis to check when comparing pointer that point to different objects:
```cpp
int main(void)
{
int foo[10];
int bar[10];
int diff;
if(foo > bar) // Undefined Behavior
{
diff = 1;
}
return 0;
}
```
2019-02-23 08:32:08 +01:00
941dd79f0d
Fix FP issue 8986: constArgument check warns for elements of const array ( #1683 )
2019-02-22 06:39:59 +01:00
cf1ad5087a
Extend constStatement checker
...
This reworks constStatement to find more issues. It catches issue [8827](https://trac.cppcheck.net/ticket/8827 ):
```cpp
extern void foo(int,const char*,int);
void f(int value)
{
foo(42,"test",42),(value&42);
}
```
It also catches from issue [8451](https://trac.cppcheck.net/ticket/8451 ):
```cpp
void f1(int x) {
1;
(1);
(char)1;
((char)1);
!x;
(!x);
~x;
}
```
And also:
```cpp
void f(int x) {
x;
}
```
The other examples are not caught due to incomplete AST.
2019-02-15 13:31:40 +01:00
dc4e7cef88
Run simplifyPlatformTypes on library return types ( #1672 )
...
Add a call to simplifyPlatformTypes() in
SymbolDatabase::setValueTypeInTokenList() to simplify return types of
library configured functions. This fixes the FN in #8141 . Regression
tests are added, both for the original issue and another FN in the comments.
In order to do that, move simplifyPlatformTypes() to TokenList from Tokenizer.
This is a pure refactoring and does not change any behaviour. The code was
literally copy-pasted from one file to another and in two places
'list.front()' was changed to 'front()'.
When adding the call to simplifyPlatformTypes(), the original type of
v.size() where v is a container is changed from 'size_t' to 'std::size_t'.
Tests are updated accordingly. It can be noted that if v is declared as
'class fred : public std::vector<int> {} v', the original type of 'v.size()'
is still 'size_t' and not 'std::size_t'.
2019-02-15 13:29:52 +01:00
bd7790fd8c
Update copyright year
2019-02-09 07:24:06 +01:00
d7c20b15e7
Fix FP with const argument when doing a variable and cast ( #1649 )
2019-02-07 14:59:09 +01:00
91de606243
TestOther: Shorter test cases ( #1637 )
...
* Remove newlines after check(
* Remove unneeded statements after if-statements
As an example, the previous test case
check(
"bool foo(int x) {\n"
" if (x < 0)"
" return true;\n"
" return false;\n"
"}");
is changed to
check("void foo(int x) {\n"
" if (x < 0) {}\n"
"}");
2019-01-31 23:57:05 +01:00
7779a9186e
Use valueflow in unsigned less than zero checker ( #1630 )
...
The unsigned less than zero checker looked for patterns like "<= 0".
Switching to use valueflow improves the checker in a few aspects.
First, it removes false positives where instead of 0, the code is using
0L, 0U, etc. Instead of having to hard code the different variants of 0,
valueflow handles this automatically. This fixes FPs on the form
uint32_t value = 0xFUL;
void f() {
if (value < 0u)
{
value = 0u;
}
}
where 0u was previously not recognized by the checker. This fixes #8836 .
Morover, it makes it possible to handle templates properly. In commit
fa076598ad#3233
template<int n> void foo(unsigned int x) {
if (x <= n);
}
foo<0>();
but give a warning for the following case
template<int n> void foo(unsigned int x) {
if (x <= 0);
}
Previously, both these cases gave inconclusive warnings.
Finally, it makes it possible to give warnings for the following code:
void f(unsigned x) {
int y = 0;
if (x <= y) {}
}
Also, previously, the checker for unsigned variables larger than 0, the
checker used the string of the astoperand. This meant that for code like
the following:
void f(unsigned x, unsigned y) {
if (x -y >= 0) {}
}
cppcheck would output
[unsigned-expression-positive.c] (style) Unsigned variable '-' can't be negative so it is unnecessary to test it.
using expressionString() instead gives a better error message
[unsigned-expression-positive.c] (style) Unsigned expression 'x-z' can't be negative so it is unnecessary to test it.
2019-01-31 09:30:29 +01:00
080c9d53af
8205 regression test ( #1618 )
...
* Fix trac ticket reference
* Add regression test for #8205
Ticket #8205 was fixed in f65cf220ba
2019-01-24 07:20:26 +01:00
8356ec6774
Add regression test for #6906 and #7284 ( #1614 )
...
* Add regression test for #6906
Ticket #6906 was fixed in f65cf220ba#7284
Ticket #7284 was fixed in 5d1fdf7958
2019-01-23 09:09:03 +01:00
8dd641b8be
Use OVERRIDE in test
2019-01-12 15:45:25 +01:00
19514331fb
Fixed #8907 (unknown macro not detected)
2019-01-01 19:30:13 +01:00
a73e989d1a
isConstVarExpression: Fix FPs when there is C++ cast
2019-01-01 11:34:44 +01:00
ac357a96f7
Fixed #7384 (confuses syntax with variable name / "variable '(' is less than zero")
2018-12-31 18:36:06 +01:00
bc34f0239d
Disable the subfunction value flow analysis. It does not work well and needs to be rewritten. There are false positives.
2018-12-18 14:36:49 +01:00
fe38e256cc
Fixed #7907 (FN: redundant assignment inside switchcase, overwritten by assignment outside of switch)
2018-12-17 16:10:47 +01:00
858d9a18a7
Fixed #3857 (false negative: (style) Variable 'var' is assigned a value that is never used)
2018-12-17 15:16:47 +01:00
9b973e652c
Issue 8830: New check: Function argument evaluates to constant value
...
Add a check for function arguments that can be constant:
```cpp
extern void bar(int);
void f(int x) {
bar((x & 0x01) >> 7); // function 'bar' is always called with a '0'-argument
}
```
2018-12-17 06:04:24 +01:00
21eb1c5e22
FwdAnalysis: Fix false negatives for struct members
2018-12-16 18:32:34 +01:00
a16f694254
Revert "Fix issue 8884: Regression: False positive: Variable 'f' is reassigned a value before the old one has been used ( #1513 )"
...
This reverts commit 6953dddfa6
2018-12-08 08:25:20 +01:00
6953dddfa6
Fix issue 8884: Regression: False positive: Variable 'f' is reassigned a value before the old one has been used ( #1513 )
2018-12-08 07:33:51 +01:00
ba564076db
Fixed #7907 (FN: redundant assignment inside switchcase, overwritten by assignment outside of switch)
2018-12-02 14:04:59 +01:00
13c6489571
Redundant variable assignment: Fix FN for struct members
2018-11-27 18:22:22 +01:00
affd03f1d6
Minor tweak for redundantVariableAssignment
2018-11-26 11:16:50 +01:00
0160f80ffe
redundantVarAssignment: avoid FPs when loops are used
2018-11-25 10:32:30 +01:00
22f736eae2
redundant variable assignments: avoid FPs for initializations
2018-11-25 08:49:09 +01:00
2f66b31d43
redundantAssignmentInSwitch: fix false positive when there is goto
2018-11-24 21:39:01 +01:00
866688c70a
Rewriting redundantAssignment checker
2018-11-24 10:03:54 +01:00
a8cbbe0e16
Fixed #8816 (FP shadowLocal - variable shadows a template function?)
2018-11-19 07:00:15 +01:00
58882b1f14
Fixed #8261 (False positive "Statements following return, break, continue, goto or throw will never be executed.")
2018-11-12 06:31:17 +01:00
3f55707b30
Fixed #8064 (Taking the address of a moved variable is not accessing it)
2018-11-11 12:47:27 +01:00
4cef2e94e7
Fixed #8368 (FP redundantAssignment - assignment has unknown side-effects)
2018-11-10 18:42:13 +01:00
1d5e797e6d
testother: Fixed typos in tests. Replaced 'voif' with 'void'.
2018-11-04 14:46:22 +01:00
2989c44f59
Enable checking duplicate expressions across associative operators ( #1445 )
...
* Enable checking duplicate expressions across associative operators
* Remove bitshift operators and check for streamRead
2018-10-21 07:09:20 +02:00
29feaa5a51
Tokenizer: Avoid constant folding
2018-10-20 10:51:50 +02:00
16c62281d0
Use followVar in checking duplicateBranch ( #1423 )
...
* Use isSameExpression for duplicate branches
* Add errorPath
* Add another test
2018-10-18 11:56:23 +02:00
58d1de5814
Expand the duplicate variable assignment warnings when the inconclusive flag is used ( #1433 )
...
* Warn for more duplicate var expressions when inconclusive is set
* Fix issue with missing function name
2018-10-17 06:57:33 +02:00
1245a036f7
Add check for shadow variables
2018-10-16 20:17:27 +02:00
75caf8e4de
Fix #8230 : FP unknown evaluation order on comma expression in while clause ( #1415 )
...
The while part of a do-while loop looks almost like a function call, so
extend the check for function calls to ignore while-statements.
Note that there was only an FP when checking c-code, since the check is
disabled for c++-code. Therefore, make sure the test cases are run on a
c-file.
2018-10-09 14:44:01 +02:00
aa58f41e6d
Fixed #7152 (False positive for redundantAssignment after calling a lambda function)
2018-10-08 21:07:21 +02:00
e170a45230
Enable followVar for opposite expressions ( #1404 )
...
Enable followVar for opposite expressions
2018-10-04 21:17:47 +02:00
4598995564
Enable followVar for duplicate ternary expressions ( #1406 )
2018-10-01 14:31:06 +02:00
f65cf220ba
Fix false positives in unknownEvaluationOrder when using followVar ( #1391 )
...
Fix false positives in unknownEvaluationOrder when using followVar
2018-09-28 08:38:24 +02:00
5bebeec224
Fix issue 8775: Dont follow aliased variables ( #1390 )
2018-09-24 06:37:47 +02:00
afe09f4d7a
Temporarily comment out the followVariable() handling
2018-09-23 16:03:18 +02:00
90a29d986b
Fix issue 8730: Dont follow variables with unknown symbols ( #1374 )
2018-09-12 17:30:18 +02:00
f4f3f81e8f
Fix issue 8741: Require pure when following variables in isSameExpression ( #1373 )
2018-09-09 07:08:32 +02:00
5a2362b2a0
Fix issue 8738: Dont warn about multiconditions when value is known ( #1369 )
2018-09-07 15:02:34 +02:00
2da958efb5
Fix issue 8722: Avoid duplicate messages due for followVar ( #1367 )
2018-09-06 06:55:36 +02:00
b46e25c18e
Fix issue 8730: False positive: Opposite expression on both sides of && ( #1366 )
2018-09-05 18:07:01 +02:00
08f301a0de
Reenable followVar ( #1363 )
...
Reenable followVar
2018-09-05 05:53:33 +02:00
93be440f92
Fix issue 8709: crash with switch statement with followVar ( #1362 )
...
* Fix crash with switch statement
* Update comment
2018-09-03 19:54:14 +02:00
0e5fabf4dc
Dont follow volatile variables ( #1365 )
2018-09-03 19:51:48 +02:00
8353f94b93
Fix crashes in followVarExpression ( #1358 )
...
* Fix crashes in followVarExpression
* Add a regression test for issue 8717
* Skip reference declarations
2018-09-02 08:28:53 +02:00
a331206b44
Temporarily disable followVariableExpressions(), there are problems that should be fixed.
2018-09-01 08:32:06 +02:00
7591616f43
Fixed #8710 (Update message duplicateExpression when operand is integer literal)
2018-08-30 18:28:34 +02:00
a5f4c5d0eb
Improve message for same expressions ( #1349 )
...
* Improve message for same expressions
* Update message
2018-08-25 14:25:31 +02:00
c5154286da
Fix issue 8687: false positive with same expression ( #1336 )
2018-08-13 12:55:41 +02:00
80290a15e0
Fix FP with duplicate assign ( #1330 )
2018-08-08 08:31:31 +02:00
c3a44ce56b
astyle formatting
...
[ci skip]
2018-08-07 18:06:51 +02:00
f603b529df
Fix issue 8413: Condition is always false 'i=expr; if (i != expr) {}' ( #1295 )
...
* Follow variables when comparing same expression
* Remove assert include
* Dont follow function arguments
* Improve the checking to check more cases
* Add more tests
* Check if the variable is used inside a loop
* Follow both variables
* Only skip loops when variable is modified in scope
* Fix FP when followed variable is modified
* Dont follow arrays
* Skip pointer indirection
* Make recursive
* Improve checking more variables
* Fix test with sizeof
* Skip following operators
* Fix test when using sizeof
* Dont check every step
* Use early returns
* Update test to use a loop instead of conditional
* Add static
* Check variables are global
* Check local variables in another scope
* Fix issue with const pointers
* Distinguish between pointer indirection and multiply
* Use simple match
* Prevent crash with uniform initialization
* Use unary op and ast to detect pointer indirection
* Expand error message when expression do not match exactly
* Add errorpath to issameexpression
* Revert "Clarify warning message for 'Same expression on both sides of operator'"
This reverts commit 0e491b41a8
2018-08-07 09:32:16 +02:00
0e491b41a8
Clarify warning message for 'Same expression on both sides of operator'
2018-08-05 10:48:02 +02:00
f9a5a114bb
astyle formatting
...
[ci skip]
2018-07-25 07:44:06 +02:00
12e58c8521
fix ticket 8570: passedByValue with member initializer list and std::move ( #1316 )
...
* fix ticket 8570
allow member initializer list variables that are moved to be non-const
* review feedback
* replace tabs with spaces in test code
2018-07-22 15:01:18 +02:00
5d1fdf7958
Fix issue 7904: Handle double nots in isSameExpression ( #1305 )
...
* Fix issue 7904: Handle double nots in isSameExpression
* Skip checking double nots in assignments
* Use ast to check for double not
2018-07-15 11:30:02 +02:00
03faa25d12
Conditions: Better handling of function calls
2018-07-08 15:58:04 +02:00
24dd4c9c26
Restore code in checkVariableScope. Fixes false negative
2018-07-01 22:31:45 +02:00
655a8b21b6
Fix false positive 'passedByValue' when address of argument is used
2018-06-23 23:25:06 +02:00
d0614b9b36
varScope: Fix false negatives for references
2018-06-22 22:51:03 +02:00
593f7eee38
Fixed #8624 (Crash below CheckOther::checkDuplicateExpression)
2018-06-14 22:39:26 +02:00
daacf27c2e
Fix false positive from issue 8612 ( #1285 )
2018-06-10 00:05:23 +02:00
8d53bcfd63
Fix FP when using non-const members and also check return type of function ( #1283 )
2018-06-09 08:05:19 +02:00
84f0a18053
passedByReference: avoid false positives for std::pair
2018-06-08 10:19:02 +02:00
44c78d1770
passedByReference: avoid false positives for std::function
2018-06-08 08:40:14 +02:00
de09c117bf
Fixed #8618 (False positive: shared_ptr is passed by reference by intention)
2018-06-07 22:39:21 +02:00
ce50df8047
Fix override warnings. ( #1234 )
2018-05-15 16:37:40 +02:00
7ef714b0c6
Fix FP with duplicate assignments by checking if the expression is unique ( #1223 )
...
* Fix FP with duplicate assignments by checking if the expression is unique
* Use array of pointers
* Reorder scope condition
2018-05-13 20:20:55 +02:00
f5dbfce8ff
Fix false positive with oppositeExpression when using binary op ( #1211 )
...
* Fix false positive with oppositeExpression when using binary op
* Simplify conditional
2018-05-08 20:43:57 +02:00
cac68c6b81
Fix FP when using - as a binary operator ( #1201 )
2018-05-04 07:58:30 +02:00
f191a3e753
Improve checking of opposite expressions ( #1199 )
...
* Improve checking of opposite expressions
* Fix some formatting
2018-05-02 06:32:33 +02:00
e1db4c0e2c
astyle formatting
...
[ci skip]
2018-04-21 13:28:31 +02:00
d939c6015a
Report opposite expressions ( #1182 )
...
* Report opposite expressions
* Skip assignment operator
2018-04-21 11:28:21 +02:00
d5fb529d4f
Fixed #8492 (Improve message: parameter should be passed by reference)
2018-04-20 17:33:42 +02:00
bbfcccf078
Refactorization: Replace several push_back-sequences by initializer lists
2018-04-09 09:41:24 +02:00
95fc84a26b
Find duplicate expressions assigned to the same variable ( #1129 )
...
* Check for duplicate assignments
* Improve checking of expression
* Add more tests
* Use simple match
* Improve robustness of check
* check for null
* Reduce side effects by checking for side effects
* Improve verbose message
* Reword the error message
2018-04-08 14:43:19 +02:00
b133d50ebe
#6426 Regression now has platform dependent results
2018-04-04 16:07:07 +02:00
7581231d9d
#6426 FP duplicateExpressionTernary - (expr) ? ~0u : ~0ul. Add regression test
2018-04-04 14:31:48 +02:00
7efc4dd26e
astyle formatting
...
[ci skip]
2018-04-04 10:04:40 +02:00
bce5fe5cef
Improve duplicate expressions in the ternary op by checking for equal values as well ( #1134 )
...
* Improve duplicate expressions in the ternary op by checking for equal values as well
* Use value instead of expression
2018-04-03 21:43:55 +02:00
c4caee6b18
Updated copyright year
2018-01-14 15:37:52 +01:00
bbeff99cc3
Fixed #6930 (Token: need function that says if the token comes from instantiated template argument)
2018-01-11 09:41:22 +01:00
eb58df236e
CheckOther::accessMovedError() / accessMoved, accessForwarded warnings: put variable name into single quotes.
2018-01-07 10:57:19 +01:00
b802b98136
Do not warn when unique pointers are passed by value
...
A unique pointer should only be passed by value or by const reference.
Passing by value means transferring ownership it makes no sense to have a pass by value Warning for unique_ptr
Signed-off-by: Andreas Pokorny <andreas.pokorny@siemens.com>
2017-07-25 11:17:56 +02:00
0967700f4b
Refactoring tests
2017-06-06 08:59:18 +02:00
ff38cc5c13
Set struct size cutoff in passedByValue check to 2*sizeof_pointer
...
Struct arguments are either pushed to the stack or passed in the
registers. Since both methods operate on machine words it is logical to
tie the maximum size of a struct argument that doesn't trigger
passedByValue diagnostic to the size of the machine word.
Also guessed size of STL classes is set to 3*sizeof_pointer, this better
represents reality and ensures that structs containing them will still
trigger passedByValue.
2017-06-06 08:48:11 +02:00
28aa939d69
iwyu - include what you use
2017-05-27 04:33:47 +02:00
3817384223
FIX: test: parameter 'settings' is always rewritten
2017-05-27 04:17:18 +02:00
040d2f0012
Use simplecpp lexer in test cases
2017-05-18 21:52:31 +02:00
7fd04cd8d0
Updated Token::expressionString(), write '->' instead of '.'
2017-04-30 14:22:18 +02:00
101dc28afa
Refactoring: Moved checkMemset.. from CheckOther to CheckFunctions
2017-04-23 07:53:41 +02:00
50da7d4919
Tokenizer: Write syntax error if there is C++ code in C file.
2017-04-06 08:50:35 +02:00
3dba1b1739
Tests for git pull request #882 .
2017-03-25 15:46:25 -04:00
816106560a
More conservative check for non-commutative operator+ in isSameExpression() ( #7938 )
2017-03-15 19:17:40 +01:00
00904ba32a
Fixed false negatives in CheckOther::checkPassByReference() when assignment operator is used.
2017-03-07 21:49:28 +01:00
59c1c76a97
Fixed #7466 (Reference variable does not count side-effects (FP variableScope))
2017-03-03 19:07:00 +01:00
f80e888b7e
run astyle
...
[ci-skip]
2017-01-31 16:22:31 +01:00
a012e5b5fb
( Fixed #7846 ) Syntax error when using C++11 braced-initializer in function last argument
...
Add an optional extended description…
2017-01-23 12:50:36 +01:00
3022d74801
Do not suggest pass by reference for std::initializer_list
2017-01-19 11:14:55 +01:00
139071d88b
Fixed #7875 (New check: function declaration and definition argument names don't match)
2017-01-05 08:52:11 +01:00
770abcf453
Fixed #5398 (False positive: Scope of variable can be reduced does not account for other variables not reduceable)
2016-12-26 14:14:40 +01:00
df6ae9f3b4
Fixed #7847 (Can't detect shift negative values when some op is executed)
2016-12-22 09:40:19 +01:00
606bb78297
ValueFlow: Better handling of casts
2016-12-20 19:32:21 +01:00
9a871d33f7
Improve Fix #6180 ("reset" and "clear" clears the move status)
2016-12-17 16:39:30 +01:00
f4ab45f13b
Improve Fix #6180 (Do not warn about move if it is part of a reassignment of the variable)
2016-12-17 16:39:30 +01:00
8cba02dc66
Readd test case I removed in b098d5fbd6
2016-12-11 21:24:12 +01:00
b098d5fbd6
ValueFlow: We need better handling of casts
2016-12-10 22:09:01 +01:00
2f6350a0d0
Refactorized Library
2016-12-06 14:09:28 +01:00
57b57428c2
Fix some typos in comments (found by codespell)
...
Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-11-27 11:40:42 +01:00
213589ee68
ValueFlow: don't perform UB when a function returns shifts of/by negative values. Fixes #7814 .
2016-11-24 23:23:47 +01:00
c8ff96fe8f
Fixed #6180 (Usage of variable after std::move or std::forward)
2016-11-20 15:14:49 +01:00
e23dc5c1e2
Fixed wrong message shown if unused label appears directly after a switch() scope
2016-11-20 14:43:54 +01:00
919f8ac323
Fixed typos. There are no real changes.
2016-11-04 15:01:05 +01:00
0154d39bf6
Show struct member in unsignedLessThanZeroError warning
...
Before:
[/tmp/test.c:8]: (style) Checking if unsigned variable '.' is less than zero.
[/tmp/test.c:12]: (style) Checking if unsigned variable '.' is less than zero.
After:
[/tmp/test.c:8]: (style) Checking if unsigned variable 'd.n' is less than zero.
[/tmp/test.c:12]: (style) Checking if unsigned variable 'd.n' is less than zero.
2016-09-22 08:03:30 +07:00
2f39ed6f88
redundantPointerOpError: put pointer name into single quotes in the error message.
2016-09-16 22:18:24 +02:00
939b42df06
Fixed #7134 (False positive redundantAssignment - assignment to local variable of unknown type)
2016-08-29 03:48:08 +02:00
bd21cd7c85
Fixed #6309 (FP: checkRedundantAssignment should not warn for pointer alias)
2016-08-08 21:43:00 +02:00
e784901303
Fixed #6971 (False positive duplicateExpressionTernary - cast ignored)
2016-08-01 21:53:43 +02:00
92e3e802fb
Attempt to fix travis build and testrunner failure
2016-07-28 20:59:09 +02:00
452ecc7ceb
Improved check: Detect passedByValue even for arguments that are not declared as "const"
2016-07-28 19:37:10 +02:00
0767284ca1
Fixed #7630 (FP: dead store, modifying array, index var modified)
2016-07-25 07:35:33 +02:00
ed4a47de45
Tokenizer: Improve syntax checking of switch,if,while
2016-07-22 16:54:24 +02:00
03d2829fb9
Merge simplecpp branch
2016-07-20 12:21:00 +02:00
0ddeac0429
refactor (use ast) and improve CheckOther::checkRedundantAssignment (warn about global variables unless they are volatile, handle arrays in lhs better)
2016-07-18 12:43:23 +02:00
d1f06ff47c
Fixed #7175 (False positive performance warning (buffer overwritten before its old content has been used))
2016-06-13 15:46:43 +02:00
710e066a9a
Fixed #6406 (VarId: struct member initialization)
2016-05-22 21:18:52 +02:00
0bf85f9aa5
ValueType: Support integers defined in libraries ( #7394 )
2016-05-04 15:39:56 +02:00
100c4276ea
Fixed #7424 (value type: wrong sign)
2016-03-18 10:30:57 +01:00
9700dfead0
Testcase succeeds on Win32-VC-32bit, only 64bit needs to be fixed.
2016-03-01 22:32:27 +01:00
b4b38fb7ce
Use ValueType in CheckOther::invalidPointerCast()
...
False negative: operator new is currently not supported by ValueType.
2016-02-05 20:28:43 +01:00
cc8c498ebb
Moved a few tests to testgarbage.cpp
2016-02-04 09:10:20 +01:00
841f17776b
Set ValueType for assignment operators, detect division by zero for %= and /= again ( #7322 )
2016-02-02 17:17:55 +01:00
9d2258677d
Improved CheckOther::checkUnusedLabel(): Write a warning instead of a style message if it happens inside a switch()
2016-01-31 12:07:24 +01:00
79aec559d5
Fixed #7243 (False positive unknownEvaluationOrder - comma operator inside while-clause)
2016-01-18 16:10:51 +01:00
7b1710a44f
redundantAssignment: change from severity 'performance' to 'style' since avoiding unneccessary stores is a basic optimization done by compilers.
2016-01-15 22:01:40 +01:00
7802517a69
#7285 wrong var name: memset() called to fill 0 bytes of '&' memset with pointer: remove var name from message. Correct some entries in posix.cfg.
2016-01-12 23:20:48 +01:00
b3208fb4b3
Fixed #7211 (False positive: Finding the same expression on both sides of an operator (enumconstant == 0))
2016-01-10 11:21:43 +01:00
79e663dd6f
Settings: Remove '_' prefix for public member variables
2016-01-03 16:18:17 +01:00
996c9244d8
Update copyright year to 2007-2016.
2016-01-01 15:34:45 +02:00
bd1037e95b
Fixed #7242 (False positive unknownEvaluationOrder - comma expression in function argument)
2015-12-29 12:06:42 +01:00
25a5ac1846
Split up TestOther::testEvaluationOrder()
2015-12-28 14:04:14 +01:00
15ecb26a6c
Tokenizer: Moved simplifyAssignmentInFunctionCall from simplifyTokenList1 to simplifyTokenList2
2015-12-28 13:58:41 +01:00
0ddb5c12ce
Fixed #7238 (False positive unknownEvaluationOrder for comma operator on C code)
2015-12-28 13:45:55 +01:00
908bc664a4
Evaluation order: ignore usage in sizeof
2015-12-27 14:08:16 +01:00
c672210e06
Evaluation order: don't warn for 'dostuff(expr++, &expr)'
2015-12-26 15:48:43 +01:00
ab6809f3fa
Fixed testrunner
2015-12-25 19:01:32 +01:00
24438c326e
Fixed #7233 (Fasle negative 'unknownEvaluationOrder in case of macro)
2015-12-25 18:31:21 +01:00
27af1bcfd8
Fixed #7229 (Improve check; unknown evaluation order, write different message for self assignment)
2015-12-25 18:00:19 +01:00
07b929e13f
Added TODO test case for unknown evaluation order
2015-12-25 17:48:15 +01:00
90a54b1fae
Fixed #7232 (False positive unknownEvaluationOrder on id = Remap( id += 42 );)
2015-12-25 16:45:11 +01:00
81f0597316
Fixed #3206 and #7226 (New check: Undefined execution order)
2015-12-24 09:13:20 +01:00
0baad496f2
Fixed #6383 (FP shiftNegative - value converted to unsigned in function argument)
2015-12-14 10:55:23 +01:00
9d8dffbd79
#6269 false positives in case of overloaded standard library functions. Detect memset() with proper argument cound, using new function numberOfArguments()
2015-12-06 12:50:05 +01:00
98f2cd021e
#7199 SymbolDatabase::validate() should be run in debug mode and print debug messages. In turn correct some test examples with invalid code.
2015-12-06 08:14:04 +01:00
8f8a0097fe
Detect more non-interlocked accesses
2015-12-02 10:58:57 +03:00
fb8cce647c
invalidTestForOverflow: Refactor; move from checkother to checkcondition
2015-11-30 08:51:15 +01:00
26a07265a8
Fixed #7184 (Invalid test for overflow 'p + x < p')
2015-11-29 20:59:50 +01:00
4fa888ec44
Warn when shifting a negative value, it is UB. ( #4931 )
2015-11-29 16:28:55 +01:00
f516de8633
Moved a few checks from CheckOther to CheckFunctions
2015-11-22 13:49:10 +01:00
0f9d90d2be
Changed Copyrights. Removed my name.
2015-11-18 20:04:50 +01:00
435a980ce2
Convert wrong test result for #7133 to TODO_ASSERT_EQUALS and add more test cases
2015-11-15 20:14:20 +01:00
65666a1ba4
Makefile: explicit list directories which should be used with ctags. Run astyle.
2015-11-15 19:03:18 +01:00
f0bf749621
#7133 crash: Variable::declarationId().
2015-11-15 19:01:29 +01:00
1589841cb6
Fixed crash in clang test suite with member variable pointers
2015-11-11 18:26:59 +01:00
36c5815ddb
Fixed false positive about redundant variable assignment in try-scopes if the variable is read in catch block ( #6555 )
2015-11-11 17:21:55 +01:00
7d8b62e615
Add regression test for #6669 Return value of malloc is reported not stored, while it is.
2015-10-26 18:24:49 +01:00
ee58587706
Fixed false positive unreachableCode when ternary operator is used ( #6664 )
2015-10-26 08:29:43 +01:00
0a34b206e8
Refactorization: Reduced code duplication in test suite
2015-10-08 11:35:51 +02:00
07b661ef62
Refactorization: Improved handling of preprocessor in test suite
...
- Set Preprocessor::macroChar to '$' once in the beginning to avoid problems when changing the order of tests
- Removed Preprocessor usage from where it is not required
- Fixed a TODO in testuninitvar.cpp
2015-10-07 14:18:57 +02:00
a574fda8a9
Fixed #6935 (Wrong duplicate expression)
2015-10-03 14:56:24 +02:00
c5a8ecb6f9
New check: Detect unused 'goto' labels ( #5124 )
2015-08-30 16:45:47 +02:00
6fb19b02d0
Properly differentiate arrays of pointers and pointers to arrays.
2015-08-25 21:19:19 +02:00
128a926d9d
Collected some more garbage code tests in testgarbage.cpp; Avoid std::string creation in testgarbage.cpp
2015-08-16 19:12:12 +02:00
b77912a0b5
Support namespaces in CheckOther::checkIgnoredReturnValue()
2015-08-15 12:19:14 +02:00
391194579c
CheckOther::checkComparisonFunctionIsAlwaysTrueOrFalseError: "evaluates always" -> "always evaluates"
2015-08-11 13:27:55 +02:00
c9e239afbf
Fixed #6908 (False positive: Same expression on both sides of '+='.)
2015-08-07 20:28:25 +02:00
ec3d76be5e
astyle formatting
2015-08-07 20:27:32 +02:00
53feb88614
Merge pull request #630 from Dmitry-Me/detectRaceInInterlockedAccess
...
Prototype for detecting non-interlocked check after InterlockedDecrement()
2015-08-06 15:43:10 +02:00
43800a9419
Detect non-interlocked check after InterlockedDecrement()
2015-08-05 12:20:28 +03:00
67e9ed9294
ZeroDiv: Avoid constant folding in testcases
2015-08-02 18:56:26 +02:00
ea62ab337b
Add more testcases for zerodiv
2015-08-02 14:05:09 +02:00
965a034afd
Fix some more false positives on zerodiv: error should be issued if type of epxression is known to be integral
2015-08-01 18:42:17 +02:00
f91ad9bbf6
5402 false positive: (error) Division by zero -- with boost::format
2015-08-01 17:28:54 +02:00
d4344bd859
cleanup testcases for div()
2015-07-30 14:05:53 +02:00
6790d91fbb
Improve error messages for conditional values. make valueFlowSwitchVariable values conditional that depend on the case. Partial fix for #6884 .
2015-07-29 19:54:57 +02:00
738057229c
Improved astIsFloat(): Handle function calls and sizeof, fixed ordering of checks
...
Handle sizeof in isSameExpression() (#6851 )
2015-07-29 14:28:24 +02:00
29fbbef001
TestOther: Added zeroDiv test to make sure there is not FN when there is cast
2015-07-26 22:23:37 +02:00
bf921251e9
TestOther: code cleanup
2015-07-26 22:21:26 +02:00
389aec51ae
Fixed #6598 (False positive zerodivcond - cast to double ignored)
2015-07-26 22:08:36 +02:00
473336f986
#6426 FP duplicateExpressionTernary - (expr) ? ~0u : ~0ul. Regression test added. That issue got fixed in 1.69 already
2015-07-26 06:28:23 +02:00
176b3925b3
Removed "verify" code in testrunner. Fixing its messages reduces the accuracy of the test suite.
2015-07-25 14:18:41 +02:00
9910c1fa0c
Fixed #6617 (preprocessor performance improvement)
2015-07-24 13:30:41 +02:00
48fed95942
Fixed wrong test case in testother: mathfunctionCall_atan2().
2015-07-16 10:55:58 +02:00
027bdd3370
Reverted cebc105856.
2015-07-13 21:31:24 +02:00
08d6c244ee
Running astyle.
2015-07-13 16:50:48 +02:00
cebc105856
Changed test case from recent commit into a TODO test case. Since it is a FP.
2015-07-13 16:50:23 +02:00
d042151b62
Checkother:selfAssignment: Improved test coverage.
2015-07-13 16:39:21 +02:00
6e03e7dca2
Remove some code checking for invalid class hierarchy which got obsolete since 480a5672b0. Run astyle
2015-07-01 07:50:13 +02:00
108b035af2
Adjust two checks which have different results on Windows/Visual Studio than on Linux: one succeeds already, another fails. Analysis/fix is under development. Temporary repair allows to detect further regressions.
2015-06-30 21:21:26 +02:00
63f39ea48f
Change unusedScopedObject severity from error to style. The checker does not determine that there is ub or wrong behaviour.
2015-06-20 11:22:15 +02:00
519bd7007a
Ticket #6588 : Properly detect whether the condition in a ternary operator is constant on C input.
2015-05-31 22:40:13 +02:00
764df4dd56
Ticket #6588 : Added test cases since the initial issue is fixed by some past commit.
2015-05-30 22:57:54 +02:00
e28e9be82f
Add TODO testcase for #5738 . Refactoring: add some const
2015-05-25 08:20:14 +02:00
22fbc18fb7
Fixed false positive for *a++ in for-loop condition
...
Moved unit test to testgarbage.cpp
2015-05-07 20:34:57 +02:00
818346622c
More tests for checking negative pointers
2015-03-19 16:46:00 +03:00
bc5132e0ac
Refactorization: Moved declaration of errout, ... to testsuite.h, uniformized style
2015-03-11 22:54:43 +01:00
6646a896f9
Fixed #6446 (FP zerodivcond on double arithmetics)
2015-03-03 15:50:31 +01:00
130ffc5752
Fixed #6538 (Symboldatabase: improve isFunction)
2015-02-24 06:11:31 +01:00
fb5cc6fded
Fixed #5905 (isSameExpression: comparisons 'a<b' and 'a>b' are same)
2015-02-23 16:38:55 +01:00
830d1eb3fd
Revert "Fixed #6538 (Symboldatabase: improve isFunction)"
...
This reverts commit d7ef89bbe6
2015-02-23 08:07:19 +01:00
d7ef89bbe6
Fixed #6538 (Symboldatabase: improve isFunction)
2015-02-23 06:49:50 +01:00
5f31242ee8
CheckOther::checkRedundantAssignment(): Bail out on inline assembly ( #6525 )
2015-02-22 12:03:53 +01:00
e9663873e5
TestOther: refactoring library testing
2015-02-17 15:52:45 +01:00
0a6babea74
#6181 Drop redundantGetAndSetUserId. Ensure (style-) warnings are issued if setuid()/getuid() and some related functions are ignored. Move strdupa()/strndupa() from posix.cfg to gnu.cfg
2015-02-16 22:19:51 +01:00
d83f07dddd
TestOther: moved posix.cfg testing
2015-02-16 16:25:27 +01:00
21cb0cfd60
Take simplifyIfNotNull and simplifyIfNot out of simplifyTokenList1 (first step for #6072 )
2015-01-31 20:12:02 +01:00
0488f45a5f
Removed standalone check CheckOther::checkDoubleFree(), integrated (most of) the functionality into CheckLeakAutoVar. Added support for new/delete to checkLeakAutoVar.
2015-01-28 17:38:43 +01:00
3285f85ebf
Fixed #6460 (Library: better function/type matching)
2015-01-27 17:55:18 +01:00
58cb6cc116
Add new "style" check to catch redundant pointer operations
...
Doing "&*some_ptr_var" is redundant and might be the remainder
of a refactoring. Warnings for expanded macros are excluded though:
They are often used with and without pointers and
do something like this: "func(&(*macroarg))".
The new check is fully AST based and was given
strong false positive testing on a large code base.
2015-01-18 00:34:07 +01:00
cf64fd3dad
Add more complex variation of the #6406 unit test
...
This is a false negative right now.
2015-01-15 14:45:10 +01:00
0286abfb45
Add unit test for #6406
2015-01-14 23:05:33 +01:00
a80101f277
CheckMemoryLeak: Fix FP for allocation functions that register memory before returning it
2015-01-05 13:23:38 +01:00
fb685f096a
CheckOther:checkNegativeBitwiseShift: Fix FP when shift is protected by ?:
2015-01-05 10:01:04 +01:00
7bafbfbd6e
Tokenizer: cleanup simplification of '!= 0' to avoid FP in 'x[(y & 0x80) != 0]' (linux)
2015-01-04 13:50:54 +01:00
267552779d
Improved check ( #6391 ): Detect identical code in both branches of ternary operator
2015-01-03 18:01:49 +01:00
ff11ba9847
Updated copyright year to 2015
2015-01-03 12:14:58 +01:00
9e8a66ee40
Fixed #6373 : Support bitops in clarifyCalculation check
2014-12-30 17:55:29 +01:00
9e60f584d9
Fixed #6321 : Implemented function Token::swapWithNext().
2014-12-27 10:53:26 +01:00
d5e10c18d3
checkUnreachableCode(): fix FP for statements that just hide compiler warnings about unused function arguments
...
Seen throughout the rockbox codebase.
2014-12-22 11:18:23 +01:00
4cbbca3db0
Refactoring: Avoid to load posix.cfg multiple times while testing (testother.cpp) ( #6336 )
2014-12-17 16:33:55 +01:00
6b78ae7c46
Add mmap() / mmap64() / munmap() to posix.cfg. Enables basic leak tracking
...
Includes function prototype in posix.cfg as comment
for easier overview of the function arguments.
2014-12-14 13:30:24 +01:00
269a4419f0
Fixed false positives about strdupa() / strndupa() memleak
...
strdupa() / strndupa() allocates memory on the stack using alloca().
This memory is freed automatically once the current function is left.
2014-12-10 22:23:52 +01:00
051d42ae6b
astyle formatting
2014-11-20 14:20:09 +01:00
f5d804f71a
running astyle
2014-11-20 10:13:03 +01:00
cb9a6c1cb5
Don't show warning for same expressions alongside == in static_assert
2014-11-13 16:04:34 +01:00
7e0fc3d481
Fixed #6252 (False positive "freed twice")
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--HG--
extra : rebase_source : 24f801452fbefa3a59ab2cca62c3cf02aea513b6
2014-11-03 21:24:34 +01:00
662283cab8
Refactorization: Avoid iterations over whole token list, limited several checks to function scopes.
2014-10-31 11:42:54 +01:00
b5ea677180
Some fixes for CheckOther::checkIgnoredReturnValue():
...
- Fixed name of the function
- Fixed false positive for code like "class strcmp { strcmp() {} };"
- Fixed FP #6233 on checking side (no AST generated for function call)
2014-10-30 23:24:13 +01:00
b7996bd0b0
Handle overloads and custom implementations of functions checkReturnIgnoredReturnValue() to avoid false positives
2014-10-30 21:26:32 +01:00
3923618b8d
Fixed #6222 (Missing varid for multiple braced initialized variables)
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-> Fixed broken code in unit tests
2014-10-16 20:46:57 +02:00
49a14d72e7
Fixed C&P-error in unit test that was added in previous commit
2014-09-29 19:57:27 +02:00
374ea8f039
Fixed false positive ignoredReturnValue on unknown member function log() ( #6197 )
2014-09-29 19:55:32 +02:00
1495a411eb
Fixed false positive ignoredReturnValue for variables initialized with constructor syntax ( #6194 )
2014-09-29 10:15:29 +02:00
210294443e
New check: Check for unused return values ( #653 )
2014-09-27 21:31:04 +02:00
cafddcb109
Fixed wrong function log10 being recommended instead of log1p
2014-09-14 13:36:12 +02:00
1e298a31cf
Refactoring tests. Use utility function to warn about unsimplified code in tests.
2014-09-13 12:59:32 +02:00
bf3a8686ec
Ticket #6164 : Added test case that now works (failed in 1.66).
2014-09-12 21:56:13 +02:00
6f92557478
Use information about pure/leak-ignore from library to improve accuracy of several bailouts
2014-09-11 20:27:07 +02:00
fb0d145b34
Don't show inconclusive message redundantCopyLocalConst if --inconclusive is not set.
...
Ran AStyle
2014-09-11 19:45:52 +02:00
7847263451
Fixed #6158 (New check: dangerous sign conversion)
2014-09-11 18:10:19 +02:00
865fc9aa67
Fixed #6154 : Don't suggest to reduce scope if inner scope is a lambda.
2014-09-10 20:56:34 +02:00
974c8688c3
Fixed #1751 (Undefined Behavior: Signed integer overflow)
2014-09-10 17:02:18 +02:00
f111a89639
Fixed #1757 (Undefined Behavior: Shift too many bits)
2014-09-09 07:24:59 +02:00
ff4fc6a234
New check: Recommend expm1, log1p, erfc ( #5392 )
2014-09-07 11:38:49 +02:00
efab840b50
#5230 Explicit reinterpret_cast should not give a warning. Lower all invalidPointerCast messages to 'portability'
2014-09-06 13:09:02 +02:00
29b46cb505
#6132 crash: daca: kvirc CheckOther::checkRedundantAssignment()
2014-09-05 20:03:34 +02:00
7d9342d16a
More test cases for pointer sign detection
2014-09-04 15:51:18 +04:00
ddc19febb5
Merge pull request #413 from Dmitry-Me/improveCStyleCastsDetection
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Improve C style casts detection
2014-09-02 08:07:53 +02:00
00044aabb0
Handle ternary operator in redundantAssignment check ( #5964 )
2014-09-01 23:16:52 +02:00
a4ff30301a
#5805 'Passing value -1.0 to sqrt() leads to undefined result' is incorrect. Degrade wrongmathcall from error to warning, since it deals with implementation-defined behaviour
2014-09-01 19:31:32 +02:00
f937dde1e0
Improve C style casts detection
2014-09-01 16:40:28 +04:00
c92230dfee
Fixed crash on garbage code introduced by recent commit.
2014-09-01 12:41:30 +02:00
20a066bb14
Run unreachableCode checking only on executable scopes ( #5789 )
2014-09-01 11:29:39 +02:00
b5e064e737
Fixed unreachableCode message if a lambda is returned ( #6008 ).
2014-09-01 11:10:42 +02:00
353a9e9a64
Bailout for duplicateBranch check if branches are empty ( #5354 )
2014-09-01 10:19:14 +02:00
e35329aba3
Fixed reporting of unmatched suppressions for unusedFunction ( #4946 )
2014-09-01 10:13:03 +02:00
6f222e4d1f
Added unit test for #5534 .
2014-08-31 19:58:03 +02:00
06a92e8981
Moved several condition checks from checkOther to checkCondition (former checkAssignIf)
2014-08-29 17:06:46 +02:00
eba8c6f6c5
Refactorization:
...
- Added missing separating comments between checks in checkother.cpp
- Moved checks related to strings into own file
2014-08-27 09:42:09 +02:00
7f2be2f57c
Fixed template bracket linkage in while loop simplification
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Ran AStyle
2014-08-23 12:28:54 +02:00
976966fe81
#5639 String literal compared with char buffer in a struct.
2014-08-23 09:41:40 +02:00
f7f44f24c7
Fixed #5132 (False negative: incorrectLogicOperator in simple if-clause)
2014-08-17 14:04:40 +02:00
364c975701
Fixed #5557 (astIsFloat: better handling of '.')
2014-08-15 16:48:53 +02:00
6545bf7938
Added back accidentially removed unit test
2014-08-06 12:08:18 +02:00
d3a567bf96
Fixed false positive #5824 : Variables that might be used for va_start() must not be passed by reference.
2014-08-06 12:06:36 +02:00
4a3d719386
Fixed recently introduced FP when C-Style casting nullpointers
2014-08-04 11:42:14 +02:00
4c80ca4e8e
Improved cstyleCast check:
...
- Detect casting of literals
- Check initializer lists (#3630 )
2014-08-04 11:21:25 +02:00
fdfea717c6
Suspicious string comparison: Refactoring using AST. Fixed FP in Lac.
2014-07-28 14:27:35 +02:00
76020d2ad0
astIsFloat: expression 'floatvar ? 0x40 : 0' is not float
2014-07-26 09:09:58 +02:00
2cc31acabb
Fixed #5922 (FP: passedByValue for std::string::value_type)
2014-07-18 15:51:59 +02:00
41baffdda1
Fixed #5850 (Wrong Message on self assignment)
2014-06-28 15:26:22 +02:00
42c3b3c89d
Library: Change range operator in validation pattern to ':'
2014-06-08 18:12:11 +02:00
4d5b463613
Fix clang compiler warning in mathlib.cpp and repair test case for #5895
2014-06-07 13:16:02 +02:00
6d0f490138
#5895 - Fixed potential signed integer overflow in Checkother:getvalue. Added regression test.
2014-06-05 16:41:10 +02:00
e9144d1a78
Fixed #5890 - crash: wesnoth desktop_util.cpp / unicode.hpp.
2014-05-29 02:58:18 +02:00
66ad3c97b9
Fixed #5857 (strPlusChar: Crash on invalid code 'int+;')
2014-05-31 10:34:00 +02:00
70b4c945de
Fixed #5874 (False positive: 'opposite conditions in nested if' with arrays)
2014-05-30 19:19:24 +02:00
bc0682d1e9
Enhancements related to duplicate expression checking:
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- Fixed astIsFloat() for complex expressions
- Enhanced support for commutative operators (#5260 )
2014-05-22 21:46:48 +02:00
4cad064c3c
Fixed false positive on C code introduced by last commit
2014-05-21 20:36:19 +02:00
d19eabde42
New Check: Compare pointer with '\0' ( #4070 )
2014-05-21 19:12:07 +02:00
Daniel Marjamäki
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