Paul Fultz II
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
Paul Fultz II
13df5b2413
Fix FP with negative index and negated condition ( #2081 )
2019-08-14 06:32:31 +02:00
Paul Fultz II
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
Paul Fultz II
68e8253920
Fix issue 8313 and 7326: Track values of pointer aliases in valueflow
2019-08-12 12:58:53 +02:00
Paul Fultz II
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
Paul Fultz II
bd02ca5ccb
Fix issue 9207: Not detected 'always true' and unreachable code
2019-08-08 07:46:47 +02:00
Paul Fultz II
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
Paul Fultz II
ffdd2dc793
Fix issue 8924: Re-enable valueFlowTerminatingCondition
2019-08-05 07:18:06 +02:00
Daniel Marjamäki
ce53931d00
Fixed #9251 (False positive: unininitialized variable (multi variables))
2019-08-03 21:12:34 +02:00
amai2012
f02636e995
Refactoring: Convert enums to enum classes
2019-08-02 21:14:29 +02:00
Daniel Marjamäki
e8ec6e6f11
Fixed #8349 (Noisy nullPointerRedundantCheck)
2019-07-27 20:03:06 +02:00
Paul Fultz II
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
Daniel Marjamäki
45d1ca6f7c
Safe checks: Clarify a warning message
2019-07-25 17:19:51 +02:00
Daniel Marjamäki
fb7f18ddea
ValueFlow: fix false detection of duplicate values
2019-07-24 12:30:33 +02:00
Daniel Marjamäki
cab9f61b79
safe checks: Handle float parameters
2019-07-24 12:09:13 +02:00
Daniel Marjamäki
e0738c48d2
simplify code
2019-07-24 11:40:51 +02:00
Daniel Marjamäki
10be2a1941
Safe checks: container parameters
2019-07-24 11:39:35 +02:00
Paul Fultz II
3ec3bd52e0
Fix FP when using a pointer to a container ( #2029 )
2019-07-24 00:04:49 +02:00
Paul Fultz II
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
Paul Fultz II
60b670babd
Fix issue 9219: False positive, returnDanglingLifetime ( #2026 )
...
* Check for pointer deref for container methods
* Formatting
2019-07-23 21:59:05 +02:00
Paul Fultz II
a08a9c1349
Switch to use lifetime analysis for iterators and pointers to invalid containers
...
This will diagnose more issues such as:
```cpp
void f(std::vector<int> &v) {
auto v0 = v.begin();
v.push_back(123);
std::cout << *v0 << std::endl;
}
```
2019-07-18 10:56:44 +02:00
Daniel Marjamäki
f0aeb845e5
ValueFlow: Clarify warnings when argument min/max values are used
2019-07-17 22:17:34 +02:00
Daniel Marjamäki
b4a05a3dd0
Refactoring: Use enum class
2019-07-16 11:12:35 +02:00
Daniel Marjamäki
32eda27391
Refactoring: Use enum class
2019-07-16 10:51:26 +02:00
Daniel Marjamäki
38182bf37b
Replace 'unsigned' with 'nonneg' in valueflow
2019-07-15 13:47:17 +02:00
Daniel Marjamäki
68cc7516a1
Annotations: Add annotation __cppcheck_in_range__(low,high)
2019-07-12 11:09:54 +02:00
Daniel Marjamäki
783f7f1648
Rename safeValues to unknownValues
2019-07-11 16:05:48 +02:00
Daniel Marjamäki
a9d61c4ddd
Fix Cppcheck warning
2019-07-10 22:08:27 +02:00
Daniel Marjamäki
5f217021ab
Another attempt to fix appveyor
2019-07-10 21:30:50 +02:00
Daniel Marjamäki
45844ef962
Try to fix appveyor. Replace int64_t with MathLib::bigint.
2019-07-10 21:26:20 +02:00
Daniel Marjamäki
05d35b063d
Function return: Extra check of safe function return values
2019-07-10 20:00:21 +02:00
Daniel Marjamäki
c9906125de
Safe functions: Check more possible function argument values
2019-07-10 16:59:05 +02:00
Daniel Marjamäki
9f548efbd3
Refactoring: enum class
2019-07-10 15:27:07 +02:00
Paul Fultz II
b0d10273ed
Fix issue 3695: Handle class pointers
...
This switches to use lifetime analysis to check for assigning to non-local variables:
```cpp
class test
{
public:
void f()
{
int x;
this->ptr = &x;
}
protected:
int *ptr;
};
```
2019-07-07 10:16:19 +02:00
Rikard Falkeborn
839fcddd8a
Fix #6115 (Add support to realloc to cfg files) ( #1953 )
...
* Allow to configure realloc like functions
* memleakonrealloc: Bring back tests.
The old memleak checker was removed, and the tests for it was removed in
commit 9765a2dfab
. This also removed the
tests for memleakOnRealloc. Bring back those tests, somewhat modified
since the checker no longer checks for memory leaks.
* Add realloc to mem leak check
* Add tests of realloc buffer size
* Configure realloc functions
* Add test of freopen
* Allow to configure which element is realloc argument
* Fix wrong close in test
cppcheck now warns for this
* Update manual
* Update docs
* Rename alloc/dalloc/realloc functions
Naming the member function realloc caused problems on appveyor. Rename
the alloc and dealloc functions as well for consistency.
* Change comparisson order
* Remove variable and use function call directly
* Create temporary variable to simplify
* Throw mismatchError on mismatching allocation/reallocation
* Refactor to separate function
* Fix potential nullptr dereference
As pointed out by cppcheck.
2019-07-05 12:44:52 +02:00
shaneasd
7e54f989f9
Update symbol database such that the override keyword implies that the function is also virtual ( #1907 )
...
* Update symbol database such that the override keyword implies that the function is also virtual
* Add test case for implicit override
* change isVirtual to hasVirtualSpecifier
* fix method documentation for getVirtualFunctionCalls and getFirstVirtualFunctionCallStack
* Fix isImplicitlyVirtual to consider the override keyword and document logic
* Fix getFirstVirtualFunctionCallStack and getVirtualFunctionCalls to use isImplicitlyVirtual instead of isVirtual so new test case passes
2019-07-04 12:32:32 +02:00
Scott Furry
a195477470
Correct Zero/Null as pointer constant ( #1938 )
...
Building with enhanced clang warnings indicated a large number of
instances with the warning:
`warning: zero as null pointer constant`
Recommended practice in C++11 is to use `nullptr` as value for
a NULL or empty pointer value. All instances where this warning
was encountered were corrected in this commit.
Where warning was encountered in dependency code (i.e. external library)
no chnages were made. Patching will be offered upstream.
2019-06-30 21:39:22 +02:00
Daniel Marjamäki
56df6169fb
Fixed #8356 (ValueFlow: variable is not changed in for loop)
2019-06-30 17:50:35 +02:00
Rikard Falkeborn
d1d622b74c
Valueflow: support global static const variables ( #1861 )
2019-06-29 14:33:55 +02:00
Paul Fultz II
66e0f06494
Fixx issue 9163: FP returnDanglingLifetime - returning std::string::find ( #1912 )
...
* Fixx issue 9163: FP returnDanglingLifetime - returning std::string::find
* Use simpleMatch
2019-06-24 18:52:17 +02:00
Rikard Falkeborn
d909ac8565
Bugfix buffer size for strdup like functions ( #1893 )
...
strdup() allocates the string length plus one for a terminating null
character. Add one to compensate for this.
Fixes false positive buffer out of bounds on code like this:
void f() {
const char *a = "abcd";
char * b = strdup(a);
printf("%c", b[4]); // prints the terminating null character
free(b);
}
Also, add a testcase for valueFlowDynamicBufferSize() and add tests for
strdup(), malloc() and calloc().
2019-06-16 16:02:27 +02:00
Ken-Patrick
66ebc187f6
Cleanup some const_cast of Token* ( #1886 )
...
* Add non const version of some methods of Token
The aim is to reduce the (ab)use of const_cast.
* Cleanup some more const_cast in valueflow
* Remove useless const_cast
* Remove some const_cast from templatesimplifier
* Remove some const_cast from valueflow
2019-06-16 10:09:38 +02:00
Paul Fultz II
6ae7be0f53
Fix FP with lifetime containers ( #1865 )
2019-06-02 10:14:48 +02:00
Paul Fultz II
f75c15af56
Fix issue 6821: New check: access heap/stack data using address of variable
...
This fixes errors with:
```cpp
int f() {
int i;
return (&i)[1];
}
```
It uses the lifetime analysis to detect the issues.
2019-05-31 12:24:31 +02:00
Paul Fultz II
108cdaa485
Fix FP with unreadVariable ( #1859 )
2019-05-31 08:06:36 +02:00
orbitcowboy
55df395a4e
Running astyle [ci skip]
2019-05-30 14:41:14 +02:00
Ken-Patrick
3cdc236e10
Fix false positive with several ! (not) operators ( #1856 )
...
With the following code
int f(int x, int y) {
if (!!(x != 0)) {
return y/x;
}
cppcheck would wrongly warn that there might be a division by zero in
"return y/x;".
2019-05-29 09:45:15 +02:00
Carlo Marcelo Arenas Belón
bf5c71bdca
sync ( #1835 )
...
* build: remove -Wabi and add -Wundef
gcc >= 8 throws a warning about -Wabi (without a specific ABI version)
being ignored, while -Wundef seems more useful (as shown by the change
in config.h, which was probably an unfortunate typo)
travis.yaml should probably be updated soon, but was left out from this
change as the current images don't yet need it
* lib: unused function in valueflow
refactored out since 8c03be3212
lib/valueflow.cpp:3124:21: warning: unused function 'endTemplateArgument' [-Wunused-function]
* readme: include picojson
* make: also clean exe
2019-05-17 09:31:41 +02:00
Paul Fultz II
4e94c64da8
Fix issue 9099 and 9102: Incorrect valueflow for global variables ( #1832 )
2019-05-14 08:58:27 +02:00
Paul Fultz II
8c03be3212
Fix issue 9077: False positive: Returning pointer to local variable ( #1821 )
...
* Avoid implicit conversion for lifetimes
* Fix issue 9077
* Add more tests
* Rename function
* Fix implicit conversion with containers
* Format
* Fix crash
2019-05-05 11:40:59 +02:00
Paul Fultz II
a688df0ea1
Fix issue 9120: crash in valueflow ( #1822 )
2019-05-05 09:51:36 +02:00
Daniel Marjamäki
0b3342abe5
Fix Cppcheck warning
2019-05-04 20:41:43 +02:00
Paul Fultz II
091f4bcf8d
Add check for unnecessary search before insertion
...
This will warn for cases where searching in an associative container happens before insertion, like this:
```cpp
void f1(std::set<unsigned>& s, unsigned x) {
if (s.find(x) == s.end()) {
s.insert(x);
}
}
void f2(std::map<unsigned, unsigned>& m, unsigned x) {
if (m.find(x) == m.end()) {
m.emplace(x, 1);
} else {
m[x] = 1;
}
}
```
In the case of the map it could be written as `m[x] = 1` as it will create the key if it doesnt exist, so the extra search is not necessary.
I have this marked as `performance` as it is mostly concerning performance, but there could be a copy-paste error possibly, although I dont think thats common.
2019-05-02 11:04:23 +02:00
Daniel Marjamäki
6c3c090403
Fixed #6317 (wrong simplification: int i = 1.5; return i; get simplified to: return 1.5;)
2019-05-01 17:05:16 +02:00
Rikard Falkeborn
1cc5f3abe7
Set wchar_t type ( #1807 )
...
This is necessary for valueflow to know the size, for example when
calculating sizeof(wchar_t).
2019-05-01 16:34:28 +02:00
Paul Fultz II
71bd7f68d4
Fix bug in lifetime constructors ( #1816 )
2019-05-01 07:52:52 +02:00
Daniel Marjamäki
66064fb2bb
Disable valueFlowGlobalConstVar until #9099 is fixed
2019-04-30 20:51:59 +02:00
Daniel Marjamäki
b1ca7c9a66
astyle formatting
...
[ci skip]
2019-04-26 11:30:35 +02:00
Paul Fultz II
39f4374446
Improve diagnostics with null smart pointers ( #1805 )
...
* Warn when dereferencing null smart pointers
* Improve tracking of smart pointer values
* Use library isSmartPointer
2019-04-26 11:30:09 +02:00
Gary Leutheuser
bca2dfb3f4
Implement #7597 - valueflow: global constant ( #1802 )
...
* Implement const global value flow
* Tabs to spaces
2019-04-21 06:54:32 +02:00
Rikard Falkeborn
d23e987941
Fix CheckInternal warnings ( #1790 )
2019-04-06 06:55:46 +02:00
Daniel Marjamäki
55433fce40
Library: added bufferSize parameters
2019-03-20 19:26:57 +01:00
Daniel Marjamäki
14528bcf25
Library: allowed values for the buffer-size attribute: malloc/calloc/strdup
2019-03-20 06:46:55 +01:00
Paul Fultz II
774464eabb
Fix issue 8996: False positive duplicateCondition
...
This fixes issue 8996 by improving the alias checking by using lifetime analysis. It also extends the lifetime checker to handle constructors and initializer lists for containers and arrays.
2019-03-19 06:25:10 +01:00
Daniel Marjamäki
3c85d8a8ac
ValueFlow: Better info for buffer size values
2019-03-17 19:02:36 +01:00
Daniel Marjamäki
92f4113b59
Array index: Checking array index out of bounds for dynamic buffers
2019-03-17 13:09:15 +01:00
Daniel Marjamäki
b984897526
ValueFlow: Fix sizeof for array of library type
2019-03-13 18:31:41 +01:00
Daniel Marjamäki
11e32ff445
ValueFlow: Handle compound assignments in execute()
2019-03-12 18:53:58 +01:00
Daniel Marjamäki
7b17b33a49
ValueFlow: fix handling of sizeof(*p)
2019-03-11 20:32:24 +01:00
Daniel Marjamäki
5563fef7bb
Fixed #9008 (new crash in clang test suite)
2019-02-28 20:34:07 +01:00
Daniel Marjamäki
857681a049
Make quick fix for uninitialized variable false positive. Will look more at this soon.
2019-02-28 09:52:52 +01:00
rikardfalkeborn
c9efc26578
valueflow: Mark getLifetimeToken() static ( #1703 )
...
Fixes a compiler warning about missing declaration.
2019-02-26 23:35:11 +01:00
Paul Fultz II
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
Paul Fultz II
507c7a4388
Improvement to lifetime tracking of addressof and derefencing
...
This will now warn for cases like this:
```cpp
auto& f() {
std::vector<int> x;
return x[0];
}
```
It also improves the handling of address of operator, so it can now warn across some function calls, like this:
```cpp
int& f(int& a) {
return a;
}
int* hello() {
int x = 0;
return &f(x);
}
```
2019-02-22 06:38:56 +01:00
Paul Fultz II
715714f4de
Forward lifetimes in "for" loops ( #1682 )
...
* Forward lifetimes in for loops
* Format
2019-02-22 06:37:02 +01:00
Daniel Marjamäki
9337af8965
astyle formatting
2019-02-09 08:48:10 +01:00
Paul Fultz II
797eccc203
Fix possible out of bounds access on arguments ( #1652 )
...
* Fix possible outbounds access on arguments
* Log a warning when the arguments mismatch
* Format
2019-02-09 08:47:36 +01:00
Daniel Marjamäki
bd7790fd8c
Update copyright year
2019-02-09 07:24:06 +01:00
Paul Fultz II
c176775afb
Avoid infinite recursion in getLifetimeVariable ( #1634 )
...
* Fix direct recursion
* Limit depth of getLifetimeVariable
2019-01-31 10:34:41 +01:00
Paul Fultz II
165a22ed0f
Lifetime: Support analysis with functions that do not return a reference ( #1632 )
...
* Initial support for function return
* Add test case
* Add support for reference parameters
* Format
2019-01-29 09:47:52 +01:00
Paul Fultz II
d6aaf401df
Lifetime: Follow functions that return references
...
This will now warn for cases like this:
```cpp
int& f(int& a) {
return a;
}
int& hello() {
int x = 0;
return f(x);
}
```
2019-01-26 11:03:57 +01:00
Paul Fultz II
3975913637
Extend lifetime checking for references
...
This will use the lifetime checker for dangling references. It will find these cases for indirectly assigned reference:
```cpp
int &foo()
{
int s = 0;
int& x = s;
return x;
}
```
This will also fix issue 510 as well:
```cpp
int &f( int k )
{
static int &r = k;
return r;
}
```
2019-01-23 07:29:16 +01:00
Paul Fultz II
4b37f276c2
ValueFlow: Set arrays to true when converting to a boolean
...
This sets it by checking the parent. It doesn't handle function parameters yet.
2019-01-21 20:05:35 +01:00
Paul Fultz II
5fa956a597
Fix issue 8932: False positive knownConditionTrueFalse - valueflow ignores operator < ( #1584 )
2019-01-11 08:39:23 +01:00
practicalswift
0a1b3a9d6f
Fix typos ( #1568 )
2019-01-06 17:15:57 +01:00
Daniel Marjamäki
5636497c0b
Fixed #8863 (false positive: (warning) Accessing an item in container 's'. Either the condition 's.empty()' is redundant or 's' can be empty.)
2019-01-06 12:21:55 +01:00
Paul Fultz II
bba6dfb8b2
Fix issue 4744: ValueFlow: known integer result
...
This fixes valueflow to have a value for `||` operator here:
```cpp
bool f()
{
bool a = (4 == 3); // <-- 0
bool b = (3 == 3); // <-- 1
return a || b; // <-- 1
}
```
2019-01-03 07:05:31 +01:00
Daniel Marjamäki
2b63997c2c
Fixed #8928 (false positive: (style) Variable 'x' is assigned a value that is never used.)
2019-01-02 20:23:02 +01:00
Daniel Marjamäki
39ceb53578
Comment out code in valueFlowArray. There was too many false positives.
2019-01-02 19:57:11 +01:00
Daniel Marjamäki
39a96a5a16
ValueFlow: Temporarily comment out valueFlowTerminatingCondition
2019-01-02 19:42:08 +01:00
Daniel Marjamäki
115be7dfc8
ValueFlow: better FwdAnalysis for complex expressions
2019-01-01 18:23:47 +01:00
Daniel Marjamäki
be7afac875
ValueFlow: remove handling of == for complex expressions it did not work properly
2019-01-01 17:23:46 +01:00
Daniel Marjamäki
20436ea986
Fix compiler warning
2019-01-01 17:04:47 +01:00
rikardfalkeborn
13ffefc8b8
Valueflow: Fix right shift with more than 31 bits ( #1553 )
...
When comparing if the shift is large enough to make the result zero, use
an unsigned long long to make sure the result fits. Also, a check that
avoids setting the value if the shift is equal to or larger than the
number of bits in the operand (this is undefined behaviour). Finally,
add a check to make sure the calculated value is not too large to store.
Add test cases to cover this.
This was detected by an MSVC warning.
valueflow.cpp(1350): warning C4334: '<<' : result of 32-bit shift implicitly
converted to 64 bits (was 64-bit shift intended?)
2019-01-01 14:15:50 +01:00
Daniel Marjamäki
ed514644b8
Renamed FwdAnalysisAllPaths to FwdAnalysis
2018-12-31 18:00:47 +01:00
Daniel Marjamäki
4918a18bfb
ValueFlow: Value of expression after condition
2018-12-31 17:37:38 +01:00
Daniel Marjamäki
141ce7cd63
ValueFlow: Use FwdAnalysisAllPaths in ValueFlow to track complex expressions
2018-12-31 17:05:46 +01:00
Carlo Marcelo Arenas Belón
5ae6861a0f
clang warnings ( #1547 )
...
* valueflow: remove unused variable known
since e4677ae640
will trigger :
lib/valueflow.cpp:506:20: warning: unused variable 'known' [-Wunused-variable]
const bool known = (parent->astOperand1()->hasKnownValue() ||
* templatesimplifier: cleanup
since 48c960f56c
showing:
lib/templatesimplifier.h:279:16: warning: private field 'mTokenizer' is not used
[-Wunused-private-field]
Tokenizer *mTokenizer;
2018-12-30 11:32:48 +01:00
Paul Fultz II
e4677ae640
Fix issue 8910: Regression: ValueFlow: wrong conditional tokvalue
...
This fixes issue in:
```cpp
void f()
{
char stack[512];
RGNDATA *data;
if (data_size > sizeof (stack))
data = malloc (data_size);
else
data = (RGNDATA *)stack;
if ((char *)data != stack)
free (data); // <- data is not stack
}
```
It seems the `ProgramMemory` can't handle two known values(such as int and tok) together. So instead `ValueFlowAfterAssign` runs `ValueFlowForward` with tok values and then runs it with the other values.
2018-12-29 09:31:21 +01:00
rikardfalkeborn
036fcf7827
Fix warnings ( #1541 )
...
* Fix reorder warning
* Fix override warnings
Clang warns about missing overrides.
* Remove unused function
* Add missing argument to function calls
2018-12-28 12:59:05 +01:00
Daniel Marjamäki
a40fe3c67f
Fixed #7872 (ValueFlow: static_cast)
2018-12-27 21:33:01 +01:00
Daniel Marjamäki
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
Paul Fultz II
34330b51d1
Fix issue 8905: Condition 'a==0' is always false
...
This fixes the FP in:
```cpp
void f(const int a[]){ if (a == 0){} }
```
2018-12-18 08:16:43 +01:00
Paul Fultz II
025881cf35
Fix issue 8829: Condition '...' is always true (int buf[42]; if(buf != NULL){})
...
This makes arrays non-null in valueflow, so it can catch comparisons against null that is always true:
```cpp
void f(void) {
int buf[42];
if( buf != 0) {;} // << always true
}
```
2018-12-17 06:07:34 +01:00
Paul Fultz II
3262a3bebe
Add isSameExpression to valueflow analysis
...
Check for same expressions in valueflow analysis.
2018-12-16 07:35:27 +01:00
Paul Fultz II
45dcfad9f9
Fix issue 8899: False positive returnDanglingLifetime when returning by value
...
This fixes the FP from:
```cpp
#include <string>
class MyString
{
public:
MyString(char* source)
{
length = strlen( source );
buffer = new char[length+1];
if( buffer )
{
strcpy( buffer, source );
}
}
char* buffer;
int length;
};
MyString Foo()
{
char arr[20];
sprintf(arr, "hello world");
return arr;
}
void main()
{
MyString str = Foo();
printf(str.buffer);
}
```
2018-12-15 17:58:45 +01:00
Daniel Marjamäki
88c61e8d1e
ValueFlow: Avoid FP when lambda is used
2018-12-04 18:54:26 +01:00
Daniel Marjamäki
f5a94ed300
ValueFlow: Fix FP when lambda is called
2018-12-04 18:46:00 +01:00
Igor
61878c5e11
Add null pointer check to fix SEGFAULT ( #1499 )
...
* Add null pointer check to fix segfault
* Add first test case to reproduce problem
2018-12-02 14:36:01 +01:00
Paul Fultz II
3e1b34dd8f
Fix FPs and crashes with byDerefCopy ( #1503 )
...
* Fix FP when inserting a range into a container
* Formatting
* Fix crash
2018-12-02 14:31:31 +01:00
Paul Fultz II
b841b818d2
Fix 8872: Crash in LifetimeStore when there is no scope for variable
...
This fixes crash in:
```cpp
struct edit_line_paste_over {
void operator()(agi::Context *c) override {
paste_lines(c, true, [&](AssDialogue *new_line) -> AssDialogue * {
AssDialogue *ret = paste_over(c->parent, pasteOverOptions, new_line, static_cast<AssDialogue*>(&*pos));
return ret;
});
}
};
```
2018-12-01 19:11:26 +01:00
Paul Fultz II
67dd822910
Fix FP in lifetime anlaysis: Dont decay std array
...
This will fix FP with:
```cpp
std::array<char, 1> f() {
std::array<char, 1> x;
return x;
}
```
2018-12-01 19:09:19 +01:00
Daniel Marjamäki
0ad757fc78
valueFlowLifetime: Try to cleanup the loop a little. No functional change is intended.
2018-11-27 06:43:59 +01:00
Paul Fultz II
5a6f9ac82a
Fix FP with strcmp and terminating conditions
2018-11-27 06:39:29 +01:00
Daniel Marjamäki
2887ee10c0
Fixed #8800 (Possible variable assignment ignored in boolean expression)
2018-11-26 14:00:03 +01:00
Paul Fultz II
a3921ea861
Refactor valueFlowAfterCondition
...
So this unifies the `valueFlowAfterCondition` so it re-uses more code between checking for integers and container sizes. This should make valueFlowContainer more robust.
It also extends valueflow to support container comparisons such as `if (v.size() < 3)` or `if (v.size() > 3)` using the same mechanism that is used for integers.
2018-11-24 10:07:12 +01:00
Daniel Marjamäki
52f9650533
Refactoring: Use visitAstNodes
2018-11-23 19:16:19 +01:00
Daniel Marjamäki
745b58de26
Refactoring: Use visitAstNodes
2018-11-23 17:18:07 +01:00
Paul Fultz II
f16d9d7d90
Issue 6175: Check lifetime of a variables stored in containers and member variables
...
Cppcheck will now warn for all cases here:
```cpp
#include <vector>
class CCluster {};
class MyClass
{ public:
std::vector<CCluster*> m_cluster;
void createCluster()
{
CCluster cl;
CCluster* pcl=&cl;
m_cluster.push_back(pcl);
}
void createCluster2()
{
CCluster cl;
m_cluster.push_back(&cl);
}
CCluster* Cluster()
{
CCluster cl;
CCluster* pcl=&cl;
return pcl;
}
CCluster* Cluster2()
{
CCluster cl;
return &cl;
}
};
```
2018-11-21 08:43:57 +01:00
Daniel Marjamäki
9d8e5e36eb
Added a few TODO comments
2018-11-20 22:57:01 +01:00
Paul Fultz II
7ef119cbfc
Fix FPs in lifetime checker
...
This fixes several FPs in the lifetime checker. It also fixes issue [8846](https://trac.cppcheck.net/ticket/8846 ):
```cpp
int * f(int a[])
{
return a;
}
```
2018-11-17 09:41:59 +01:00
Paul Fultz II
d376e9f245
Track variable lifetime through function calls ( #1481 )
2018-11-16 06:12:28 +01:00
Daniel Marjamäki
39c04b650d
astyle formatting
...
[ci skip]
2018-11-14 19:10:52 +01:00
Paul Fultz II
54453c5802
Fix FP when copying pointer to string ( #1479 )
2018-11-14 06:59:25 +01:00
Paul Fultz II
f0c86b9d14
Fix issue 8842: Crash in valueFlowTerminatingCondition on incomplete code ( #1480 )
2018-11-14 06:23:45 +01:00
Daniel Marjamäki
f096d7f474
astyle formatting
...
[ci skip]
2018-11-12 10:08:57 +01:00
Paul Fultz II
0e11bb07c8
Extend lifetime analysis to pointer usage ( #1477 )
...
* Use lifetime analysis for pointers as well
* Fix issue 1143: Pointer to local array
* Update message when using pointers
* Avoid infinite loop in tracing lifetimes
2018-11-12 10:08:17 +01:00
Daniel Marjamäki
717a2d370c
astyle formatting
...
[ci skip]
2018-11-12 06:32:02 +01:00
Paul Fultz II
5bda102897
Fix warnings ( #1476 )
2018-11-12 06:08:57 +01:00
Paul Fultz II
68d6b96878
Diagnose invalid lifetimes ( #1475 )
...
* Add check for invalid lifetimes
* Fix FP with member variables
* Dont forward lifetime values in subfunction
* Update message to use out of scope
2018-11-11 16:43:54 +01:00
Daniel Marjamäki
bdd4623124
valueFlowLibraryFunction: fix crash found with daca@home
2018-11-11 16:41:01 +01:00
Paul Fultz II
e46691597e
Fix issue 8841: FP knownConditionTrueFalse - Dont treat unknown function as noreturn ( #1474 )
...
* Fix issue 8841: Dont treat unknown function as noreturn
* Add a parameter to set default value when the function is unknown
2018-11-11 08:04:01 +01:00
Daniel Marjamäki
d5a478d5c5
astyle formatting
...
[ci skip]
2018-11-10 21:30:01 +01:00
Paul Fultz II
1ffcc6b730
Add initial lifetime checker ( #1448 )
...
* Inital valueflow lifetime checker
* Forward values
* Add initial tests
* Fix deplicate messages
* Fix traversing nested lambdas
* Turn test case into a todo
* Skip if returning a container
* Fix FP when using references
* Add missing header
* Fix FP from broken scopes
* Fix FP with static variable
* Add test for more FPs
* Parse lambda functions
* Check for capture by value
* Add tests for using a container and lambda together
* Fix cppcheck errors
* Add test for nextAfterAstRightmostLeaf
* Add valueflow tests
* Update error message
* Check for correct lambda token
* Improve error path reporting
* Fix hang when parsing arrays that look almlost like lambdas
2018-11-10 16:40:40 +01:00
Paul Fultz II
36e663e250
Fix issue 8839: FP knownConditionTrueFalse - condition inside a while-clause ( #1469 )
2018-11-09 06:09:51 +01:00
Paul Fultz II
7373be2bfa
Add a pass in valueflow for terminating conditions ( #1323 )
...
* Add valueflow for terminating conditions
* Add valueflow test
* Dont check for same expressions for now to avoid double diagnostics
* Check nesting
* Add more tests
* Ensure conditions happen in order
* Check for null
* Add error path
* Support same expression check as well
* Use early continue
* Skip checking the same token
* Avoid double condtion diagnosis
* Fix FP when in switch statements
* Fix FP when time function
* Skip conditional escapes
* Use simpleMatch
* Fix naming
* Fix typo
2018-11-07 06:49:07 +01:00
Daniel Marjamäki
35d18be311
ValueFlow: Refactoring, removed redundant assignment
2018-11-06 07:02:20 +01:00
Daniel Marjamäki
00340efc57
ValueFlow: Refactoring valueFlowCallFunction
2018-11-06 06:38:26 +01:00
Daniel Marjamäki
ca19894a04
ValueFlow: In evaluate handle correlated values
2018-11-05 18:07:35 +01:00
Daniel Marjamäki
da44ce0b5d
ValueFlow: evaluate strlen and char literals better
2018-11-05 16:52:12 +01:00
Daniel Marjamäki
977fdd88a9
ValueFlow: Fix a few issues in 'evaluate'
2018-11-05 06:53:48 +01:00
Daniel Marjamäki
8a54420274
ValueFlow: Try to handle multiple argument values in <returnValue> evaluation
2018-11-04 20:52:12 +01:00
Daniel Marjamäki
dd9a1e890b
valueFlowRightShift: Do not perform analysis when rhs is negative
2018-11-04 17:13:23 +01:00
Daniel Marjamäki
6878de2c5e
ValueFlow: getExpressionRange, valueFlowRightShift
2018-11-03 23:25:46 +01:00
Daniel Marjamäki
ef35b86b4a
Multipass Valueflow
2018-11-03 15:53:24 +01:00
Daniel Marjamäki
614a252704
Fix Match warning
2018-11-02 20:14:34 +01:00
Daniel Marjamäki
5de683ec49
Container size: Fix false positive
2018-11-02 20:10:40 +01:00
Daniel Marjamäki
16cc20a232
ValueFlow: Better handling of container size values
2018-11-02 18:28:32 +01:00
Daniel Marjamäki
c03d32b429
ValueFlow: Improve containerSize handling of string like classes
2018-10-28 19:14:00 +01:00
Daniel Marjamäki
06ede9c239
ValueFlow: handle x+=y for containers
2018-10-27 18:38:04 +02:00
Paul Fultz II
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
Paul Fultz II
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
orbitcowboy
d08b39c915
Improved const correctness of local variables. There are no functional changes intended. ( #1392 )
2018-09-23 20:24:51 +02:00
Daniel Marjamäki
d7de46f50e
ValueFlow: Fix false positive for container size
2018-09-08 10:43:08 +02:00
Daniel Marjamäki
c6d43506b6
ValueFlow: Fix FP in switch
2018-09-04 20:28:48 +02:00
Daniel Marjamäki
cc402869a6
Fixed #8689 (False positive: containerOutOfBounds after function call)
2018-09-02 14:08:34 +02:00
Daniel Marjamäki
6223204a06
Fixed #8708 (FP: Accessing an item in container that is empty)
2018-08-27 13:49:47 +02:00
Daniel Marjamäki
2f834c3c3b
Fixed #8688 (False positive: containerOutOfBounds)
2018-08-13 21:27:29 +02:00
Daniel Marjamäki
55ab842083
valueFlowSizeForward: Bailout when function calls modify the container size
2018-08-13 06:54:18 +02:00
Daniel Marjamäki
183345a939
valueFlowContainerSize: Fix FP when container size is changed
2018-08-12 22:23:19 +02:00
Daniel Marjamäki
7074eeb869
valueFlowContainerSize: assignment of string-like containers
2018-08-12 22:01:58 +02:00
Daniel Marjamäki
189ea5003a
valueFlowContainerSize: empty container variables
2018-08-12 14:41:00 +02:00
Daniel Marjamäki
811a71aa06
valueFlowContainerSize: Handle guard logic
2018-08-11 15:08:54 +02:00
Daniel Marjamäki
6008bbdfb4
valueFlowContainerSize: Fix wrong value after condition if conditional code escapes
2018-08-11 13:49:42 +02:00
Daniel Marjamäki
10461e5429
valueFlowContainerSize: forward analysis inside conditional code
2018-08-10 22:18:38 +02:00
Daniel Marjamäki
4a502a7f6b
valueFlowContainerSize: add simple forward analysis
2018-08-10 22:06:23 +02:00
Daniel Marjamäki
2b10e38eec
valueFlowContainerSize: handling of 'v.size() == 10'
2018-08-10 21:43:47 +02:00
Paul Fultz II
3947c23290
Fix issue 8369: False negative: Condition 'condition' is always true ( #1325 )
...
* Fix issue 8369: False negative: Condition 'condition' is always true
* Use simpleMatch
* Add iterator header
* Cleanup
* Remove unused variable
2018-08-10 18:05:23 +02:00
Daniel Marjamäki
3805af18a2
valueFlowContainerSize: Fix crash when container pointer is null
2018-08-10 12:53:16 +02:00
Daniel Marjamäki
f37434cd1d
valueFlowContainerReverse: Fix FPs when there is assignment
2018-08-10 12:26:53 +02:00
Daniel Marjamäki
907f81d059
ValueFlow: Improved analysis of container size
2018-08-10 11:53:56 +02:00
Daniel Marjamäki
81f54f7094
Fixed #8681 (ValueFlow: Container size)
2018-08-10 11:29:16 +02:00
Daniel Marjamäki
c666f74755
astyle formatting
...
[ci skip]
2018-07-25 23:02:16 +02:00
Paul Fultz II
f093692551
ValueFlow: Set values in else branch even when the first branch modifies the value ( #1309 )
...
* Set values in else branch even when the first branch modifies the value
* Move tests
* Add check for goto
* Remvoe todo
* Also check scope is noreturn
* Use isEscapeScope when variables are changed
2018-07-25 22:59:54 +02:00
Paul Fultz II
9895ea5ff2
Fix issue 470: Condition is always true or false on logical operators ( #1294 )
...
* Fix issue 470: Condition is always true or false on logical operators
* Dont warn on literals
* Compute logical operators using valueflow
* Fix FP when using literals
* Always warn on subconditions that are always true
* Use percent matches first
* Add test for logical operators
* Check if parent is null
2018-07-23 08:51:59 +02:00
Daniel Marjamäki
991300ac54
Clarify code with Token::isUnaryOp()
2018-07-14 22:36:08 +02:00
Daniel Marjamäki
1e824330c0
Refactoring: Use range for loops
2018-07-14 22:26:22 +02:00
Daniel Marjamäki
0f3cc56c59
Refactoring: Use range for loops
2018-07-14 13:19:41 +02:00
Daniel Marjamäki
d603a811bb
Clarify code with Token::hasKnownValue()
2018-07-14 13:09:53 +02:00
orbitcowboy
de66eedd54
Improved const correctness of local variables.
2018-05-29 17:33:43 +02:00
Daniel Marjamäki
8e8919e906
Fix comment
2018-05-07 22:06:23 +02:00
Daniel Marjamäki
8c2a5c9813
astyle formatting
...
[ci skip]
2018-05-06 09:50:53 +02:00
Paul Fultz II
0561877182
Fix false positive with negative array index in issue 8536 ( #1202 )
...
* Fix FP with negative array index in valueflow
* Remove values when valueflow fails
* Add valueflow test
2018-05-06 08:35:29 +02:00
Daniel Marjamäki
858e055c0e
ValueFlow: Wrote a few basic comments
2018-05-05 23:03:04 +02:00
Daniel Marjamäki
f336c2efe7
Refactoring; Renamed Scope::classStart and Scope::classEnd
2018-04-27 22:36:30 +02:00
Daniel Marjamäki
dbcdb19b73
Refactoring; Use range for
2018-04-24 18:02:36 +02:00
Daniel Marjamäki
7ee636b934
Refactoring: Reuse isLikelyStreamRead in isVariableChanged
2018-04-18 17:46:10 +02:00
Daniel Marjamäki
7825eb8670
Refactoring; reuse isLikelyStreamRead
2018-04-17 19:51:27 +02:00
Daniel Marjamäki
c84628c28a
Fixed #8494 (False positive: serialization class overloads operator)
2018-04-17 14:23:04 +02:00
PKEuS
d2146844dd
Refactorizations:
...
- Replace several push_back-calls by emplace_back
- Replace some x = x.substr(0, y) calls by x.erase(y)
2018-04-11 09:44:35 +02:00
Daniel Marjamäki
c5923fbdd3
astyle formatting
2018-04-09 22:21:17 +02:00
Paul Fultz II
d8b3fa5c70
Fix #8482 : Regression with valueflow ( #1159 )
...
* Fix regression with valueflow
* Simplify test case
2018-04-09 16:13:17 +02:00
PKEuS
b15cc3f236
Refactorization: Replace several push_back-sequences by initializer lists
2018-04-09 09:54:39 +02:00
Daniel Marjamäki
ee5c60e8f6
Refactoring, use early continue
2018-04-08 09:30:13 +02:00
Daniel Marjamäki
795b9f5e0f
astyle formatting
2018-04-08 09:25:59 +02:00
Paul Fultz II
aed84abfd5
Extend valueflow comparison ops ( #1153 )
...
* Handle else clause when doing a compare
* Break early
* Fix bug in checking no return else
* Escape quotes
* Add equal sign
* Simplify the logic
2018-04-08 09:24:01 +02:00
Matthias Krüger
5a104cab6e
remove weird "#line 2" from valueflow.cpp
2018-04-06 23:26:08 +02:00
Daniel Marjamäki
3ad6c7ebce
Refactoring, use early continue
2018-04-05 08:21:43 +02:00
Paul Fultz II
b871c85b67
Improve valeflow analysis with comparison operators ( #1131 )
...
* Improve valeflow analysis with comparison operators
* Use simple match
* Dont add 0 on comparisons
* Check reverse comparisons
* Use nullptr
* Remove duplicate code tests
2018-04-05 06:51:31 +02:00
jrp2014
b6504c70ca
Improve constness
2018-04-04 21:51:31 +02:00
IOBYTE
5bc039b7da
Fix #6367 and #8439 (improve sizeof value flow support) ( #1132 )
2018-03-23 08:28:12 +01:00
Daniel Marjamäki
7699f6432b
Fixed #8288 (valueFlowGlobalVar: compound assignments)
2018-03-18 19:53:33 +01:00
Daniel Marjamäki
ec6133aea2
Fixed #8182 (False positive uninitvar - variable initialized in function in ternary expression)
2018-03-16 19:13:48 +01:00
Daniel Marjamäki
1628405869
Fix internal warning
2018-02-24 22:35:37 +01:00
Daniel Marjamäki
7701e4594a
ValueFlowBeforeCondition: Fix wrong value in do-while condition when there is a break in the loop body
2018-02-24 22:07:34 +01:00
Daniel Marjamäki
69b50b274c
Try to make Travis happy
2018-02-11 22:54:14 +01:00
Daniel Marjamäki
e62b9bdc77
Fixed #8348 (ValueFlow: wrong Uninit value with abort() in else-branch)
2018-02-11 22:14:44 +01:00
Matthias Krüger
f009cfc845
fix some typos found by codespell.
2018-02-04 20:53:43 +01:00
Daniel Marjamäki
c4caee6b18
Updated copyright year
2018-01-14 15:37:52 +01:00
Daniel Marjamäki
6fd157e93b
ValueFlow: Template arguments have 'possible' values
2018-01-11 14:22:27 +01:00
PKEuS
c8010fdf42
Fixed crash on garbage code ( #8307 )
2018-01-07 13:11:56 +01:00
Daniel Marjamäki
8fe4852b98
Refactoring, reuse and improve isVariableChangedByFunction()
2017-11-18 11:02:52 +01:00
Daniel Marjamäki
9191e6f112
Fixed #8246 (ValueFlow: known value, function pointer argument)
2017-11-17 23:04:54 +01:00
Daniel Marjamäki
4a9984d73b
Fixed #8233 (FP uninitvar found in bash:lib/readline/display.c)
2017-11-06 10:28:07 +01:00
Ayaz Salikhov
19af9bc216
Fix UB when converting float to int ( #984 )
2017-11-03 14:05:23 +01:00
Daniel Marjamäki
002f6679d5
Fix syntax error
2017-10-21 22:17:07 +02:00
Daniel Marjamäki
c4c76aa1ad
Use MathLib::bigint_bits
2017-10-21 22:08:34 +02:00
Ayaz Salikhov
64e61d28ba
Add an ability to use address sanitizer ( #979 )
2017-10-21 21:04:14 +02:00
Daniel Marjamäki
05e1e5e0a0
astyle formatting
...
[ci skip]
2017-10-20 22:11:12 +02:00
Daniel Marjamäki
1d5e3e4f0c
Fixed #8247 (False positive knownConditionTrueFalse)
2017-10-20 17:31:58 +02:00
Dmitry-Me
5040491ee6
Size computation code not required outside this translation unit
2017-10-19 19:01:41 +03:00
Dmitry-Me
606e28a3c5
Extract and reuse size computation
2017-10-19 00:25:21 +03:00
Dmitry-Me
34a8d2431f
Extract and reuse size computation
2017-10-19 00:20:04 +03:00
Dmitry-Me
8709490903
Clarify expressions with parentheses
2017-10-18 23:40:43 +03:00
Dmitry-Me
e356ccca22
Revert "Clarify expression with parentheses"
...
This reverts commit bbf0a81c2d
.
2017-10-18 23:31:44 +03:00
Dmitry-Me
bbf0a81c2d
Clarify expression with parentheses
2017-10-18 23:24:31 +03:00
Dmitry-Me
151ace2581
Use Platform for char limits computation ( #972 )
2017-10-18 17:30:47 +02:00
Daniel Marjamäki
ad1749738e
Fixed #6153 (ValueFlowBeforeCondition: Handle global variables)
2017-10-17 16:55:37 +02:00
Daniel Marjamäki
6d59290858
Fixed #10 (ValueFlow: condition variable has known value in switch case)
2017-10-16 21:51:30 +02:00
Daniel Marjamäki
fbccb3ae55
Add errorpath for accessMoved message
2017-10-10 15:49:15 +02:00
Daniel Marjamäki
d3c9d06aa4
astyle formatting
...
[ci skip]
2017-10-08 14:16:45 +02:00
Ayaz Salikhov
be2c65eb58
Simplify int vs bool
2017-10-08 07:54:39 +02:00
Daniel Marjamäki
2a6fbe2e3c
astyle formatting
...
[ci skip]
2017-10-05 23:01:42 +02:00
hexcoder
051a18b120
pull request for ticket 8180 (better diagnostic output for bailouts) ( #964 )
...
* sync build instructions from readme.txt
* refactored the patch from ticket 8180. Moved logic from macros to the bailoutInternal function
* adapt to new bailout message format
* adapt to new bailout message format
* adapt to new bailout message format
* compile fix for Microsoft platform
* remove directory part from file locations in bailout message (normalize)
* remove directory part from valueflow message filter
* adapt tests to file format without directory part
* adapt tests to file format without directory part
* new line number agnostic assert_equals methods
* new line number agnostic assert_equals methods
* adapt to new method assertEqualsWithoutLineNumbers()
* adapt to new method assertEqualsWithoutLineNumbers()
* Bugfix: do not replace line number with spaces, remove it
* review changes: const char * -> std::string, size_t -> int, std::to_string() -> MathLib::toString()
* set #line at the beginning to guard against insertions from match compiler
* Bugfix: counting lines can be difficult :-) #line 1 -> #line 2
* added method stripDirectoryPart()
* added method stripDirectoryPart()
* used new method Path::stripDirectoryPart()
* new dependency path.h in lib/valueFlow.cpp
* code cleanup, removing redundant temporary objects and casts
2017-10-05 23:03:13 +02:00
Daniel Marjamäki
ba8222de1c
ValueFlow: Put 'inconclusive' state in the ValueKind. A value can't be both known and inconclusive.
2017-09-20 22:41:36 +02:00
Daniel Marjamäki
87c35cd60e
ValueFlowForward: Refactoring handling of compound assignments
2017-09-20 11:45:28 +02:00
Daniel Marjamäki
1dbcba4dd6
Fixed #8221 (ValueFlow: value for static variable that is not written)
2017-09-15 15:58:19 +02:00
Daniel Marjamäki
ef1f3fbee6
Fixed #8173 (ValueFlow: use AST when setting values in assignment RHS ((n=42) && n=='A'))
2017-09-14 22:49:47 +02:00
Dmitry-Me
a4c20b3606
Break loop early
2017-09-12 07:48:06 +03:00
Dmitry-Me
4126fab1d5
Simplify code with temporary
2017-09-12 07:46:38 +03:00
Dmitry-Me
caebf137bc
Cache and reuse value
2017-09-12 00:21:36 +03:00
Dmitry-Me
5dba8268e7
Better variable name
2017-09-04 17:53:56 +03:00
Daniel Marjamäki
a02fd54a69
ValueFlow: Avoid FPs for aliased variables
2017-09-03 23:24:55 +02:00
Dmitry-Me
beba46987d
Remove redundant variable
2017-09-01 18:19:25 +03:00
Dmitry-Me
2133350bf0
More useful default value
2017-09-01 18:17:40 +03:00
Dmitry-Me
4663dc205a
Cache and reuse value
2017-09-01 18:16:08 +03:00
Daniel Marjamäki
59034e17f1
Refactoring, reuse code to skip lambda functions
2017-08-29 22:35:55 +02:00
Daniel Marjamäki
9c99bc43c2
ValueFlow: Skip wrong handling of lambda functions. TODO: handle lambda functions properly.
2017-08-28 22:39:12 +02:00
Daniel Marjamäki
02a1b7cd2d
Fixed #7965 (valueFlowForward: Improved handling of correlated variables)
2017-08-27 19:50:44 +02:00
Daniel Marjamäki
529b255e99
ValueFlow: Better errorpath for increment/decrement
2017-08-25 23:07:26 +02:00
Daniel Marjamäki
b1b8e5270a
ValueFlow: Better errorpath for increment/decrement
2017-08-25 22:15:52 +02:00
Daniel Marjamäki
50636f75ba
ValueFlow: Improved error path for compound assignments
2017-08-24 22:02:49 +02:00
Daniel Marjamäki
f10634c021
ValueFlow: Dont try to evaluate '/=0;'
2017-08-23 17:53:05 +02:00
Daniel Marjamäki
167cfb1ac5
valueFlowForward: improve handling of compound assignments
2017-08-23 11:13:47 +02:00
Daniel Marjamäki
3abb62a6d1
Fixed #8036 (valueFlowUninit: strcpy(buf, e = str), free(e);)
2017-08-20 19:47:26 +02:00
Dmitry-Me
d3d9c76f01
Fix off by one, resolve C4334
2017-08-14 18:07:36 +03:00
Ayaz Salikhov
b8cd7dbb5c
Use nullptr instead of 0 or NULL ( #936 )
2017-08-09 20:00:26 +02:00
Daniel Marjamäki
32fe0aba41
Fixed #8037 (ValueFlow: global variable might be modified by function call)
2017-07-09 12:50:17 +02:00
Daniel Marjamäki
bce0776417
Fixed #7795 (ValueFlow: Value is not known after conditional increment )
2017-06-01 15:16:07 +02:00
Ayaz Salikhov
28aa939d69
iwyu - include what you use
2017-05-27 04:33:47 +02:00
Daniel Marjamäki
6e1544bd49
ValueFlow: Use getOrdinalText()
2017-05-23 15:01:56 +02:00
orbitcowboy
ba2b235e24
Fixed: warning: ‘tokvalue’ may be used uninitialized in this function [-Wuninitialized].
2017-05-22 15:22:38 +02:00
Daniel Marjamäki
58da0df2f6
astyle formatting
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[ci skip]
2017-05-20 18:52:48 +02:00
Daniel Marjamäki
82a372a380
Try to clarify ErrorPath texts
2017-05-20 08:47:35 +02:00
Daniel Marjamäki
f92b16706c
ValueFlow: Add ErrorPath info after for loop
2017-05-19 16:32:58 +02:00
Daniel Marjamäki
2bb54fef69
ValueFlow: Test ErrorPath handling
2017-05-19 14:34:59 +02:00
Daniel Marjamäki
cd53d10970
ErrorPath: More information about assignments
2017-05-16 23:12:35 +02:00
Daniel Marjamäki
c617851567
ErrorLogger: Added ErrorPath where each item has token and info
2017-05-16 22:38:13 +02:00
Daniel Marjamäki
e65d6d3c67
ValueFlow: inherit Value::callstack in calculations
2017-05-16 19:43:55 +02:00
Daniel Marjamäki
8d75d1b920
Partial fix for #8028 (ValueFlow: Origin/callstack of value)
2017-05-15 20:05:11 +02:00
Daniel Marjamäki
bc7799dccd
Fixed #7888 (false positive from knownConditionTrueFalse with sizeof(int) == sizeof(long))
2017-05-01 12:23:28 +02:00
Daniel Marjamäki
980ca39fe2
valueFlowForward: better handling of sizeof() in rhs in assignments
2017-04-29 08:25:55 +02:00
Daniel Marjamäki
a0a8f8ddd6
ValueFlowUninit: make it more strict
2017-04-28 13:29:09 +02:00
Daniel Marjamäki
89532cf8b9
Fixed #7968 (valueFlowBeforeCondition: better handling of compound assignments)
2017-04-25 20:45:02 +02:00
Daniel Marjamäki
37fd60e879
Fixed #7293 (Use of uninitialized pointer not detected (worked in 1.71))
2017-04-24 18:27:16 +02:00
Daniel Marjamäki
9a294496c1
ValueFlow::setTokenValue: Fix typo
2017-04-23 21:59:58 +02:00
Daniel Marjamäki
a688402617
ValueFlow::setTokenValue: Don't calculate parent value for uninitialized values
2017-04-23 21:58:01 +02:00
Daniel Marjamäki
8a738eefab
fixed #7998 (uninitialized variable is not found when used with switch/case)
2017-04-23 18:05:14 +02:00
Daniel Marjamäki
8fe7ee1012
Fixed #7886 (ValueFlow: endless forloop 'for (i = 0, j = 0; i < sz && j < 9; i++)')
2017-03-30 22:02:36 +02:00
PKEuS
3c8f5b85ae
Refactorization: Allocate Token::_values (ValueFlow information) dynamically, reducing size of each token by around 10%
2017-03-27 18:48:34 +02:00
PKEuS
97fa9e9d1b
ValueFlow: Stop on inline assembly
2017-03-23 20:01:16 +01:00
Daniel Marjamäki
ecc59859e1
Don't simplify _Bool in TokenList
2017-03-04 11:13:28 +01:00
Daniel Marjamäki
d1c66edb03
ValueFlow: Known values in conditional code
2017-03-03 01:29:34 +01:00
Daniel Marjamäki
47d39d0a14
Revert "Fixed #7888 (1.77 false positive from knownConditionTrueFalse with sizeof(int) == sizeof(long))"
...
This reverts commit a762511067
.
2017-01-10 13:22:48 +01:00
Daniel Marjamäki
a762511067
Fixed #7888 (1.77 false positive from knownConditionTrueFalse with sizeof(int) == sizeof(long))
2017-01-09 22:28:55 +01:00
Daniel Marjamäki
b1f7e46491
Fixed #7323 (valueflow: global variables)
2017-01-09 15:53:08 +01:00
Daniel Marjamäki
f40bdddbab
ValueFlow: Better handling when casting calculation result
2016-12-20 23:09:50 +01:00
Daniel Marjamäki
44ccbdedec
ValueFlow: Improved value for cast
2016-12-20 21:37:25 +01:00
Daniel Marjamäki
606bb78297
ValueFlow: Better handling of casts
2016-12-20 19:32:21 +01:00
Daniel Marjamäki
e14e86c103
ValueFlow: only set values in conditional code in subfunctions when sure
2016-12-20 11:06:20 +01:00
Daniel Marjamäki
807b653739
ValueFlow: Fix FP in for loops when 2nd expression is 0
2016-12-20 07:54:38 +01:00
Daniel Marjamäki
f1ad7368f6
ValueFlow: bool values
2016-12-19 21:21:18 +01:00
Daniel Marjamäki
17aaecbd6b
ValueFlow: Improved handling of sizeof
2016-12-18 14:03:48 +01:00
Daniel Marjamäki
4ac5c78e0c
Fix wrong iterator usage. Iterator that is erased must be non-const.
2016-12-17 22:20:50 +01:00
Daniel Marjamäki
72e4bc9d88
ValueFlow: skip values that cause false assertion condition
2016-12-17 21:23:14 +01:00
Daniel Marjamäki
fd85b493bd
astyle formatting
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[ci skip]
2016-12-17 18:51:16 +01:00
Frank Zingsheim
cb5a5e6a25
Improve Fix #6180 (Access of moved variable still allowed until function is called)
2016-12-17 16:42:46 +01:00
Frank Zingsheim
9a871d33f7
Improve Fix #6180 ("reset" and "clear" clears the move status)
2016-12-17 16:39:30 +01:00
Frank Zingsheim
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
Daniel Marjamäki
31337dda27
ValueFlow: Better handling of && and || in for loop to avoid FP
2016-12-11 21:19:24 +01:00
Frank Zingsheim
e0d4720e19
Fix #7829 (false-positive: knownConditionTrueFalse linked to virtual method)
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Return values of virtual functions in valueflow are only possible values
since function might be overloaded.
2016-12-11 10:44:05 +01:00
Daniel Marjamäki
b098d5fbd6
ValueFlow: We need better handling of casts
2016-12-10 22:09:01 +01:00
PKEuS
2f6350a0d0
Refactorized Library
2016-12-06 14:09:28 +01:00
PKEuS
6e8ac13325
Refactorization:
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- Optimized std::string usage
- Replaced list by vector
- Moved iterator into loop head
- Ran AStyle
2016-12-05 17:45:34 +01:00
Daniel Marjamäki
5df8e7f50c
Fixed #7596 (ValueFlow: better handling for 'x*(1-x-1)')
2016-12-04 22:39:59 +01:00
Stefan Weil
57b57428c2
Fix some typos in comments (found by codespell)
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Signed-off-by: Stefan Weil <sw@weilnetz.de>
2016-11-27 11:40:42 +01:00
Matthias Krüger
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
Daniel Marjamäki
d40f4e4a55
Fixed #7778 (valueFlowAfterAssign: alias)
2016-11-21 17:26:36 +01:00
Frank Zingsheim
c8ff96fe8f
Fixed #6180 (Usage of variable after std::move or std::forward)
2016-11-20 15:14:49 +01:00
Matthias Krüger
b6614d0aa4
valueflow: bail out earlier when encountering divisions by zero. Fixes #7819 .
...
This caused valueflow to actually try to divide by zero, detected by UBSAN.
2016-11-20 14:38:35 +01:00
Daniel Marjamäki
3b57273ef1
Fix Cppcheck warnings
2016-11-14 07:21:10 +01:00
Daniel Marjamäki
1e31c6c01c
ValueFlow: Extended handling of float values
2016-11-14 06:42:52 +01:00
Daniel Marjamäki
e1e9eacccc
ValueFlow: Added float type
2016-11-13 22:59:56 +01:00
Daniel Marjamäki
4732667488
ValueFlow: allow more value types
2016-11-13 22:33:39 +01:00
Daniel Marjamäki
7ebfb10edd
Fixed #7806 (ValueFlow: better handling of subfunction with early return)
2016-11-13 18:19:51 +01:00
Daniel Marjamäki
ac7b351d1e
ValueFlow: Don't calculate x<<64 and x>>64
2016-11-06 20:40:58 +01:00
Daniel Marjamäki
dd69d5eabe
ValueFlow: Don't calculate result when there is UB
2016-11-06 17:42:01 +01:00
Alexander Mai
ee11f0974a
#7769 segmentation fault at setTokenValue() on invalid code.
2016-11-06 14:20:58 +01:00
Daniel Marjamäki
ece4b1a06f
Fix ValueFlow
2016-11-05 09:59:48 +01:00
Daniel Marjamäki
2885a75ea6
ValueFlow: handle ~ in setTokenValue
2016-11-05 09:29:22 +01:00
Frank Zingsheim
d4f01583b6
Fixed TODO (check if function parameter is non-const reference etc..) by common function
2016-11-01 14:06:30 +01:00
Robert Reif
4216b26b8c
Fixed #7775 (crash at valueFlowSetConstantValue)
2016-10-26 10:36:02 +02:00
Daniel Marjamäki
8a0f3009ff
ValueFlow: inner and outer function return values
2016-10-22 17:22:57 +02:00
Daniel Marjamäki
77cd6c194f
ValueFlow: Set 'known' property for function return values
2016-10-22 12:24:15 +02:00
Daniel Marjamäki
86a620a3b4
ValueFlow: Better handling of function return value when there are 0 parameters
2016-10-20 16:10:55 +02:00
Daniel Marjamäki
efa3aba32a
Remove Tokenizer::simplifyNull()
2016-10-18 21:44:02 +02:00
Daniel Marjamäki
fae4a4dacf
Fixed #7668 (ValueFlow: return value from abs)
2016-10-17 13:05:19 +02:00
Daniel Marjamäki
7fb812f415
Fixed #7752 (ValueFlow: no conditional value, probably because condition is in ternary operator and/or in function call.)
2016-10-16 07:15:28 +02:00
Daniel Marjamäki
ad74421526
Fixed #7756 (ValueFlow: fix bug in valueAfterAssign, same variable in lhs and rhs)
2016-10-15 19:09:50 +02:00
Boris Egorov
a32f61ae4a
Fixed #7139 (ValueFlow: Missed shift operation in for expression)
2016-10-04 13:09:33 +07:00
Daniel Marjamäki
254e5675ff
Fixed #7573 (Tokenizer: FP caused by constant folding)
2016-08-28 19:11:05 +02:00
PKEuS
e0838ff194
Fixed crash on garbage code ( #7699 )
2016-08-21 11:06:48 +02:00
Daniel Marjamäki
305609f4fb
Fixed #7688 (setTokenValue: crash when there is no 2nd operand for ternary operator)
2016-08-17 18:44:41 +02:00
Daniel Marjamäki
1f98af654a
ValueFlow: better handling of ? when condition result is known
2016-08-15 14:19:35 +02:00
Daniel Marjamäki
62362cd06d
ValueFlow: improve handling of unary minus
2016-08-14 22:19:06 +02:00
PKEuS
9a6569fde1
Always set ErrorMessage::file0 to ensure that the source file that cppcheck is checking when an error occurs can be identified
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Removed unused function and unused includes from preprocessor.h/cpp
2016-07-26 16:28:40 +02:00
Daniel Marjamäki
4f051bf9dd
Fixed #7599 (valueFlowAST: handle && and || better)
2016-07-17 21:51:20 +02:00
Robert Reif
eca805ba3b
ValueFlow: Fixed constant folding of sizeof(enum) and sizeof(enumerator) ( #7564 )
2016-07-08 20:39:34 +02:00
Robert Reif
66cacde3db
Fixed #7513 (value flow of array dimension with enum doesn't always work)
2016-05-26 11:25:50 +02:00
Daniel Marjamäki
636e97c272
ValueType: Improved debug output for nested types
2016-05-08 13:15:20 +02:00
Daniel Marjamäki
b94eaeca6a
ValueFlow: For convenience, return constant folded value
2016-05-08 11:17:10 +02:00
Daniel Marjamäki
b26dd1ccab
ValueFlow: Handle enums
2016-05-07 20:18:07 +02:00
PKEuS
23202d9442
Fixed bailoutFunctionPar() for temlate functions ( #7396 )
2016-05-04 11:38:29 +02:00
Dmitry-Me
12a5f2509b
These conditions are mutually exclusive
2016-03-03 18:01:15 +03:00
Dmitry-Me
3bcd0e0535
Reduce variable lifetime
2016-03-02 19:07:20 +03:00
Daniel Marjamäki
1ab5805d98
Fixed #6616 (valueFlowForward: for loop, variable in 3rd expression is changed in loop body)
2016-02-08 10:43:41 +01:00
Alexander Mai
cfe9c01bf8
#7257 segmentation fault in valueFlowSwitchVariable (invalid code). Correct SymbolDatabase::validateVariables() so it does not complain about function arguments for function without body
2016-02-03 21:52:02 +01:00
Daniel Marjamäki
d5884692df
Fixed #7363 (valueflowOppositeCondition - if (size1 > size2) ... else if (size1 < size2) ...)
2016-01-30 22:13:03 +01:00
Matthias Krüger
11be3a9265
fix internal warning: [lib/valueflow.cpp:722]: (warning) Found simple pattern inside Token::Match() call: "if ("
2016-01-30 20:34:33 +01:00
Daniel Marjamäki
30f2bb7796
ValueFlow: set known value for opposite condition in else if ( #5503 )
2016-01-30 20:03:55 +01:00
Daniel Marjamäki
b5986f6ad2
Fixed #7358 (valueflow: value is not known after conditional assignment)
2016-01-27 19:20:00 +01:00
Daniel Marjamäki
462b98afbc
Fixed #7310 (ValueFlow: Value of NULL in function call)
2016-01-26 16:53:01 +01:00
Daniel Marjamäki
5c9be4a0df
Fixed #7216 (ValueFlow: known value in condition)
2016-01-26 16:10:15 +01:00
Daniel Marjamäki
a391bca060
Fixed #7350 (ValueFlow: Result of 'x & 0' is always 0)
2016-01-26 10:07:42 +01:00
Daniel Marjamäki
a8416bfb16
Fixed #6000 (ValueFlow: conditional code in for loops)
2016-01-24 13:11:51 +01:00
Daniel Marjamäki
76cdfbf487
Fixed #6330 (valueflow: condition is always false first iteration in dowhile loop)
2016-01-24 08:57:57 +01:00
Daniel Marjamäki
522de81cc7
Refactoring: Move isReturn() to astutils and rename it to isReturnScope()
2016-01-16 18:52:34 +01:00
Lauri Nurmi
996c9244d8
Update copyright year to 2007-2016.
2016-01-01 15:34:45 +02:00
Alexander Mai
e9635fd393
#7236 segmentation fault (invalid code) in ValueFlow::setValues. #7237 segmentation fault (invalid code) in Tokenizer::setVarIdClassDeclaration
2015-12-26 23:51:10 +01:00
Daniel Marjamäki
9cb8e9a07e
Revert "Fixed #3923 (valueFlowForward: assignment in if should not cause bailout for code in else)"
...
This reverts commit 04f9b71281
.
2015-12-12 16:50:02 +01:00
Daniel Marjamäki
04f9b71281
Fixed #3923 (valueFlowForward: assignment in if should not cause bailout for code in else)
2015-12-12 15:50:33 +01:00
Alexander Mai
ba0859e838
#6981 crash in checkvaarg.cpp (with possible fix). Avoid segfault. Add SymbolDatabase::validate() to allow validating smyboldatabase
2015-12-05 20:55:26 +01:00
Daniel Marjamäki
508b06abaa
Fixed #6973 (ValueFlow: dont set possible tokvalues in unreachable code)
2015-12-01 07:49:19 +01:00
Daniel Marjamäki
8fb6f33aca
ValueFlow: dont set dynamic values in unreachable code ( #6973 )
2015-11-30 16:15:58 +01:00
Alexander Mai
c70b71e353
#5888 fsanitize=undefined: signed integer overflow: 4611686018427387904 * 2 cannot be represented in type 'long long int' in valueflow.cpp
2015-11-27 21:45:08 +01:00
Daniel Marjamäki
0022ce8075
Refactor handling of char constants
2015-11-20 10:10:38 +01:00
Daniel Marjamäki
0f9d90d2be
Changed Copyrights. Removed my name.
2015-11-18 20:04:50 +01:00
Daniel Marjamäki
04ecbba361
Fixed #7135 (ValueFlow: Wrong pointer alias set for 'p = &p[x];')
2015-11-15 23:38:23 +01:00
Daniel Marjamäki
595f1e1a27
ValueFlow: set value for char literals
2015-11-12 16:38:58 +01:00
Daniel Marjamäki
34dbc3c00c
ValueFlow: Improved handling of a[i]
2015-11-12 16:14:27 +01:00
Daniel Marjamäki
b9b0964dab
Fixed #7006 (False positive Mismatching assignment and comparison (variable is changed in loop))
2015-11-11 13:45:28 +01:00
PKEuS
389d30fe44
Fixed crash on garbage code ( #7118 )
2015-11-09 11:21:07 +01:00
Daniel Marjamäki
37dbebb093
Fixed #7049 (valueflow: value is not known after case)
2015-11-08 14:08:47 +01:00
Daniel Marjamäki
f7a7a8a95c
Fixed #6934 (False positive returnLocalVariable - assigning local array to function argument)
2015-11-07 15:07:26 +01:00
Aleksandr Pikalev
2d0ecc08c1
Check pointers for NULL before utilizing and do not check it later
2015-11-06 20:24:09 +01:00
Daniel Marjamäki
4b0625c570
Fixed #6239 (Possible null pointer dereference after pointer is modified by a function template)
2015-10-27 12:33:46 +01:00
Daniel Marjamäki
6b9088de3f
Fixed #7057 (valueFlowAfterAssign doesn't terminate)
2015-10-19 19:36:46 +02:00
Alexander Mai
8e3e981323
#7050 segmentation fault (invalid code) in isVariableChanged
2015-10-15 21:27:55 +02:00
Daniel Marjamäki
60f8982999
Fixed #7039 (ValueFlow: bitand calculation '16&15')
2015-10-14 10:44:04 +02:00
Frank Zingsheim
3bc21b8138
Fixed #6996 (ValueFlow: known and possible values)
2015-10-04 10:33:43 +02:00
Daniel Marjamäki
bd243a4748
Fixed #6903 (ValueFlow: Fix FP in ?:)
2015-09-27 13:29:28 +02:00
Dmitry-Me
85d47e25e4
Move variable declaration to where it's first used
2015-09-16 13:15:07 +03:00
Daniel Marjamäki
8cee96a179
ValueFlow: Refactor 'ProgramMemory' so it can handle token * values also and not just int values. I believe this refactoring is needed before #6973 can be fixed.
2015-09-12 19:49:02 +02:00
Dmitry-Me
70d98c7176
Get rid of set object
2015-09-10 17:59:20 +03:00
amai2012
45bb7d5adb
Merge pull request #647 from Dmitry-Me/continueOnRuleMatch
...
Treat matches as mutually exclusive
2015-08-28 16:00:53 +02:00
Dmitry-Me
962f0ee584
Treat matches as mutually exclusive
2015-08-28 15:27:56 +03:00
Dmitry-Me
81613d958a
Replace match call with explicit comparison
2015-08-28 15:16:10 +03:00
PKEuS
4d80df2f4a
Added pointer to Type to Token (similar to Token::Variable() and Token::function()):
...
- Accessible via Token::type()
- Renamed former Token::type() to Token::tokType()
- Removed SymbolDatabase::isClassOrStruct()
2015-08-15 11:19:21 +02:00
Dmitry-Me
f0aa9e31de
Cache and reuse value
2015-08-12 10:57:36 +03:00
Dmitry-Me
50fb9cea66
Reduce variables scope
2015-08-11 17:20:30 +03:00
Daniel Marjamäki
2e78d21480
Fixed #6730 (ValueFlow: inner scope does not return (continue,throw))
2015-08-11 11:21:03 +02:00
Daniel Marjamäki
07a064aab0
Fixed #6910 (ValueFlow: variable incremented as macro argument is not known)
2015-08-05 14:08:57 +02:00
Daniel Marjamäki
8d3f7e36e9
Fixed #6911 (valueflow: comparison of string and NULL)
2015-08-02 18:12:03 +02:00
Daniel Marjamäki
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
Daniel Marjamäki
fc25ed8c86
Fixed #6879 (valueflow in do-while(++i))
2015-07-29 11:55:07 +02:00
Daniel Marjamäki
bf75ee9aed
Fixed #6885 (valueflow ignores assignment of variable via function call)
2015-07-29 10:49:17 +02:00
Daniel Marjamäki
a1dfd6cf73
astyle formatting
2015-07-28 12:47:08 +02:00
Daniel Marjamäki
e759710198
Fixed #6743 (valueFlowAfterCondition: wrong value when variable is changed in conditional code)
2015-07-28 08:58:05 +02:00
Daniel Marjamäki
f449e91d43
made valueFlowSwitchVariable faster when there are many 'case %num%:'
2015-07-27 14:57:02 +02:00
Daniel Marjamäki
5cc744b941
Fixed #6872 (Major performance regression - valueFlowSwitchVariable)
2015-07-27 06:45:06 +02:00
Daniel Marjamäki
ed1c6e41d9
Fixed #6876 (valueFlowForward: lambda function)
2015-07-26 19:28:42 +02:00
Daniel Marjamäki
190550f9f9
Fixed #6877 (ValueFlow: valueFlowForward, after goto label the value is not known)
2015-07-26 17:05:21 +02:00
Daniel Marjamäki
4e293d47c5
CheckMemoryLeak: Fix handling of comparisons after simplifyIfNotNull is removed, detected problem with run_more_tests
2015-07-26 11:27:52 +02:00
Daniel Marjamäki
afd9f071c0
simplified the code for ValueFlow Known/Possible values
2015-07-25 19:36:29 +02:00
PKEuS
ab1113fb16
Fixed crash on garbage code #6859
2015-07-22 13:33:24 +02:00
Daniel Marjamäki
ffc707246b
ValueFlow: Better handling of Known/Possible values after conditional unknown function call
2015-07-21 17:56:40 +02:00
Daniel Marjamäki
749bb34deb
Fixed #6830 (ValueFlow: value of switch-variable inside switch)
2015-07-20 19:45:38 +02:00
Daniel Marjamäki
c0880c8d79
ValueFlow: Values that are assigned in switch are possible after switch
2015-07-20 09:36:56 +02:00
Daniel Marjamäki
ce7e879460
ValueFlow: isVariableChanged() should return true when variable is changed by passing its address to subfunction
2015-07-18 15:35:39 +02:00
Daniel Marjamäki
5aa0b284dc
ValueFlow: Evaluate more calculations when operands have known values
2015-07-18 15:03:57 +02:00
Daniel Marjamäki
25d9ebedd8
ValueFlow: fixed known/possible value of static variable
2015-07-17 20:48:37 +02:00
Daniel Marjamäki
f1e410a878
ValueFlow: value that is changed in do while loop must be possible instead of known.
2015-07-17 20:30:34 +02:00
Daniel Marjamäki
69c1a7ecb1
ValueFlow: default argument values are not known, they are possible
2015-07-17 16:05:07 +02:00
Daniel Marjamäki
577ab1c2ac
ValueFlow: result of ? is not 'known'
2015-07-17 15:22:24 +02:00
Daniel Marjamäki
61cf224f32
ValueFlow: Make known loop value possible
2015-07-17 10:24:24 +02:00
Daniel Marjamäki
9bdee7fce9
ValueFlow: Refactoring setTokenValue()
2015-07-17 09:46:31 +02:00
Daniel Marjamäki
3d5781743c
ValueFlow: Restore handling of not
2015-07-16 21:17:44 +02:00
Daniel Marjamäki
15a8e4d2df
Temporarily revert "Fixed #4842 (condition is always true (variable is assigned constant value and then used in condition))"
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This reverts commit a3fbad50cb
.
The ValueFlow must be updated before this can be re-added.
2015-07-16 21:10:46 +02:00
Daniel Marjamäki
09efe140fe
ValueFlow: Change value to 'Possible' after conditional assignment in inner loop
2015-07-16 21:08:32 +02:00
Daniel Marjamäki
38214b6907
ValueFlow: function arguments only has 'possible' values
2015-07-16 20:49:14 +02:00
Daniel Marjamäki
a3fbad50cb
Fixed #4842 (condition is always true (variable is assigned constant value and then used in condition))
2015-07-16 20:17:57 +02:00
Daniel Marjamäki
88491267d6
ValueFlow: Added Value::valueKind that says if value is known or possible
2015-07-16 17:33:16 +02:00
Alexander Mai
b604d63dd8
#6726 cppcheck hangs with 100% CPU load (invalidcode) inside Token::astOperand2(). #6840 egmentation fault (invalid code) in Token::astOperand2. Improve stability on invalid code
2015-07-15 15:19:48 +02:00
Daniel Marjamäki
405a1fba11
ValueFlow: set values for false/true
2015-07-14 18:02:26 +02:00
Daniel Marjamäki
7ccd30362c
Fixed #6826 (False positive: ValueFlow conditional value used in condition)
2015-07-12 19:35:47 +02:00
Daniel Marjamäki
f3b4c1d0db
Remove some useless casts, probably added to avoid false positives.
2015-07-04 13:19:21 +02:00
Daniel Marjamäki
b8e77c8005
valueflow: fix for ?:. the condition result is not a result of the ?.
2015-07-04 11:17:38 +02:00
Daniel Marjamäki
7e1ddea653
One more fix for #6811 (ValueFlow: result of ?:)
2015-07-02 20:52:04 +02:00
Daniel Marjamäki
c751039612
Fixed #6811 (ValueFlow: result of ?:)
2015-07-02 20:11:27 +02:00
Daniel Marjamäki
75b0430ba5
Token::strValue: fixed handling of backslash
2015-06-07 11:25:33 +02:00
Simon Martin
98e6dca4f2
Ticket #6713 : Properly detect ternary operator in valueFlowForward.
2015-05-30 20:55:36 +02:00
amai2012
729b240d9c
Refactoring (compiler warnings and a typo)
2015-05-25 23:15:59 +02:00
Daniel Marjamäki
eb0db322eb
Fixed #6560 (ValueFlow: handling ternary operator better in valueFlowSubFunction)
2015-05-24 17:02:00 +02:00
PKEuS
3ce4e68ca6
Refactorization: Make use of do-loops to avoid redundant Token::Match() calls
2015-05-13 13:40:40 +02:00
Daniel Marjamäki
ca1f19b6d4
Fixed #6378 (valueFlowForward: decrement not handled)
2015-05-02 17:30:09 +02:00
Dmitry-Me
8a4033e13a
Omit unneeded actions
2015-03-24 16:01:59 +03:00
Jakub Melka
b7d92a4fc7
Fixed warnings of CppCheck's own code (caused by new check #695 )
2015-03-08 18:18:09 +01:00
Daniel Marjamäki
d1892786b8
ValueFlow: Improved when using '[' on arrays and strings
2015-02-24 15:57:39 +01:00
Dmitry-Me
dfd19233e9
Simplify loop logic
2015-02-09 14:40:17 +03:00
Dmitry-Me
6eacb4957c
Simplify ternary operators, use else-if to avoid extra comparison
2015-02-09 11:46:27 +03:00
Dmitry-Me
fd0155cacf
Reuse already known values
2015-02-09 10:23:36 +03:00
Daniel Marjamäki
8a1b8df1ba
ValueFlow: Improved handling of alias values in valueFlowForward
2015-02-08 19:20:05 +01:00
Daniel Marjamäki
1d873de67f
Fix testrunner
2015-02-07 19:44:33 +01:00
Daniel Marjamäki
62a5d88eb0
ValueFlow: Improved handling of strings
2015-02-07 18:14:22 +01:00
Matthias Krüger
dd70b6e0cd
fix internal message: [lib/valueflow.cpp:239]: (warning) Found simple pattern inside Token::Match() call: "} ;"
2015-02-07 12:51:17 +01:00
Daniel Marjamäki
29db3eb848
Fixed #5980 (ValueFlow: pointer cant be 0 below throw in switch)
2015-02-07 10:45:30 +01:00
PKEuS
f1714110d0
Fixed crash if double constants are passed as default arguments ( #6494 )
2015-02-03 22:12:05 +01:00
Dmitry-Me
c05e632baf
Cache and reuse value
2015-02-03 11:00:40 +03:00
PKEuS
451a277b18
Refactorization: Support function default values in ValueFlow, removed now obsolete CheckNullPointer::nullPointerDefaultArgument().
...
-> Use valueFlowForward() to parse values passed to functions
-> valueFlowForward(): Set value in first occurrence of a variable in a condition
2015-02-01 15:15:00 +01:00
PKEuS
b74b94b1e6
Partially reverted previous commit - std::vetcor instance creation can't be avoided without generating lots of debug messages
2015-02-01 12:33:53 +01:00
PKEuS
58c3fdd063
Fixed crash on garbage code introduced recently, optimized code in valueFlowFunctionReturn.
2015-02-01 12:26:46 +01:00
PKEuS
a4cc4c3e3f
Refactorization: Use SymbolDatabase scope information in ValueFlow
2015-02-01 12:10:20 +01:00
PKEuS
b2835051df
Refactorization: Renamed Token::Match pattern %var% to %name%, implement new pattern %var% which is true if varId > 0.
2015-01-31 12:32:04 +01:00
PKEuS
33f5d27b53
Fixed varId0 message #6443 .
2015-01-31 10:33:32 +01:00
Daniel Marjamäki
6a8293a8b7
Library: More strict matching of functions
2015-01-08 19:31:41 +01:00
Daniel Marjamäki
1068e095e7
Fixed cppcheck warning about iterator post increment
2015-01-06 15:16:29 +01:00
Daniel Marjamäki
eee9183406
ValueFlow: improved handling of conditional noreturn scope in valueFlowForward
2015-01-06 14:12:35 +01:00
Daniel Marjamäki
1f698ca493
ValueFlow: Fixed valueFlowForward, when condition is false and else-block returns dont set values below the else-code
2015-01-05 16:39:47 +01:00
Daniel Marjamäki
c5467766e2
ValueFlow: Fix for valueflow analysis after for loop
2015-01-05 14:00:12 +01:00
Daniel Marjamäki
ff11ba9847
Updated copyright year to 2015
2015-01-03 12:14:58 +01:00
Daniel Marjamäki
2831bbd420
ValueFlow: better handling of goto to avoid false positives
2015-01-01 14:29:49 +01:00
PKEuS
58f4660c94
Fixed #5223 : Bailout in valueFlowForLoop1() for complex conditions
...
Refactorization: Reuse result instead of calling MathLib::toLongNumber() twice
2014-12-30 19:56:47 +01:00
PKEuS
ec826a0e0e
Fixed #6022 : Support ++%var% in valueFlowForLoop1
...
Fixed TODO unit test: properly handle loops that are never executed
2014-12-30 18:50:22 +01:00
Daniel Marjamäki
5490fad8c7
Fixed #5840 (False positive (inconclusive): Possible nullpointer dereference - use before for-loop over nested list)
2014-12-14 14:10:42 +01:00
Daniel Marjamäki
d8b50e73df
Fixed #6002 (Defect: False positive due to pointer address not being associated with variable in for loop)
2014-10-20 15:54:02 +02:00
Daniel Marjamäki
0fd6586fcc
Fixed #6219 (valueFlowForward: better multivariable analysis needed to avoid FP)
2014-10-17 06:50:33 +02:00
Daniel Marjamäki
228206f556
Fixed #6067 (ValueFlow: subfunction, condition with && or ||)
2014-10-15 16:34:03 +02:00
Daniel Marjamäki
31d8cac8c9
Fixed #6138 (ValueFlow: entry can't be 0 in loop code 'while (entry = get()) entry->value;')
2014-10-11 17:48:51 +02:00
PKEuS
0cc5b67bf6
Avoid copying std::list object in valueFlowAfterAssign
2014-09-24 13:22:22 +02:00
Daniel Marjamäki
ee93d30d94
ValueFlow: improved valueflow for loops that assign variable and then break
2014-09-23 16:06:02 +02:00
Dmitry-Me
6f9730b1d8
Reorder checks, unwrap code
2014-09-16 10:17:06 +04:00
Daniel Marjamäki
29a49d0641
removed some redundant null pointer checks before calling Token::Match
2014-09-14 11:35:04 +02:00
Simon Martin
53b58f0ed9
Refactoring. Use Token::Match instead of hardcoded patterns to increase readability.
2014-09-14 11:26:16 +02:00
Alexander Mai
6b26b6ed31
Fix read access to uninitialized variable
2014-09-06 22:27:13 +02:00
Alexander Mai
5a96413220
#6127 crash on patch(?)-".c" file. Avoid segfault.
2014-09-04 21:28:18 +02:00
Daniel Marjamäki
b3e4abd82a
Fixed Cppcheck warnings
2014-09-04 18:08:56 +02:00
Daniel Marjamäki
05617d7285
Fixed #6118 (False positive: divide by zero - if condition not evaluated properly)
2014-09-04 17:52:14 +02:00
PKEuS
5d0aa15002
Merge pull request #416 from Dmitry-Me/removeDuplicateChecks
...
Remove duplicate checks
2014-09-04 07:46:45 +02:00
Alexander Mai
270f59e76a
Fix doxygen warning and astyle formatting
2014-09-03 20:38:41 +02:00
Dmitry-Me
68d650e9ac
Remove duplicate checks
2014-09-03 14:17:34 +04:00
Alexander Mai
a632f68345
#6122 segmentation fault (invalid code) in in valueFlowForLoop2. Simple fix and testcase.
2014-09-02 19:41:50 +02:00
PKEuS
78932094c8
Fixed crash on garbage code #6106
2014-08-31 12:12:03 +02:00
Daniel Marjamäki
eeeb8aa0a7
ValueFlow: Fix crash for lambda function
2014-08-27 17:27:34 +02:00
Daniel Marjamäki
ae8a20b197
Fixed #6086 (False positive: valueFlow, conditional code returns)
2014-08-27 16:59:18 +02:00
Daniel Marjamäki
23ec9fea8e
Fixed #6024 (False positive (nullPointer) using in 1.66)
2014-08-26 18:48:11 +02:00
PKEuS
5e2ea8b6cd
Fixed crash #6089 by using information stored in Variable instead of accessing Variable::nameToken
2014-08-26 11:08:21 +02:00
Daniel Marjamäki
789b01aad2
ValueFlow: fixed one more hang in valueFlowForward
2014-08-24 08:50:01 +02:00
PKEuS
69b7f91034
Support :: in some more places
2014-08-19 11:36:32 +02:00
Daniel Marjamäki
b2288e5ada
Fixed #6022 (Defect: False positive due to bug in determining bounds of for loop 'for (i = 2; i < 1; ++i)')
2014-08-18 16:45:22 +02:00
PKEuS
df080ab5c3
Refactorization in valueflow.cpp: Removed redundant loop, rearranged code.
2014-08-18 10:25:30 +02:00
Daniel Marjamäki
5cdbe0f42d
ValueFlow: Improved value flow after for loop
2014-08-17 10:40:22 +02:00
Daniel Marjamäki
7ca742c454
Fixed #5062 (ValueFlow: Handle comma operator in abstract interpretation)
2014-08-17 06:42:16 +02:00
Daniel Marjamäki
65f10edcb6
Fixed #5866 (False negative: useless condition or null pointer dereference (null object after while loop, method))
2014-08-16 18:32:25 +02:00
Daniel Marjamäki
e83f08a825
Fixed #6044 (hang: darkplaces / cl_particles.c)
2014-08-14 06:13:42 +02:00
Daniel Marjamäki
f0cb6ef33d
Change fix for hang so there won't be FP
2014-08-13 05:36:17 +02:00
Daniel Marjamäki
bdfe43d82c
Fix hang in libdmtx package. found through daca2.
2014-08-13 04:03:17 +02:00
Daniel Marjamäki
970fda9e79
ValueFlow: Fixed nullpointer FP warning in checksizeof
2014-08-11 16:21:20 +02:00
Daniel Marjamäki
8bbbb54f94
Refactoring valueFlowSubFunction
2014-08-06 06:33:06 +02:00
Daniel Marjamäki
9eb28cb8af
ValueFlow: Improved analysis of assignments
2014-08-05 08:28:46 +02:00
Daniel Marjamäki
a2f776b1b7
Dead pointer: Added checking for dead pointer usage when pointer alias local variable that has gone out of scope.
2014-08-05 06:24:23 +02:00