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10975 Commits

Author SHA1 Message Date
Daniel Marjamäki cdc602e1be Fixed #9137 (Tokenizer: Wrong handling of volatile pointer) 2019-08-03 12:28:50 +02:00
Daniel Marjamäki c03df8e6b4 SymbolDatabase: Improved matchParameter for containers 2019-08-03 10:10:40 +02:00
IOBYTE 2da83df37b Fix #9246 (Syntax error on C++ code) (#2061) 2019-08-03 08:15:06 +02:00
amai2012 f02636e995 Refactoring: Convert enums to enum classes 2019-08-02 21:14:29 +02:00
rebnridgway d2b9c1f15a Fix some bugs in new Scope Calculation code (#2060) 
* Fix for too much information in scope name

When the scope calculation encounters code such as 
"friend class X::Y;"
or
"template<> class X<void> {"
it will now reset the additional name component of the scope that is about to be opened.

* Made sure new scope name is reset after being used
 2019-08-02 19:55:08 +02:00
Daniel Marjamäki e66e6549ee SymbolDatabase: Improved ValueType::matchParameter handling of containers 2019-08-02 15:59:22 +02:00
Daniel Marjamäki 26b0ea52ed SymbolDatabase: Simplify code 2019-08-02 15:41:18 +02:00
IOBYTE 0d1685cd29 Fix #9178 example with instantiation (#2059) 2019-08-02 07:53:39 +02:00
amai2012 29596baa92 Refactoring: Convert enum Direction to enum class 2019-08-01 20:56:02 +02:00
Daniel Marjamäki 7eaa49fd5b Refactoring SymbolDatabase::findFunction. No functional change is intended. 2019-08-01 17:53:14 +02:00
Daniel Marjamäki 81db8fda18 SymbolDatabase: Code cleanup in findFunction 2019-08-01 17:29:25 +02:00
Daniel Marjamäki 25a13d061c Refactoring SymbolDatabase::findFunction 2019-08-01 16:14:00 +02:00
Daniel Marjamäki f95fdd80dd SymbolDatabase: Refactoring findFunction 2019-08-01 14:30:29 +02:00
Daniel Marjamäki 2a17b897c5 SymbolDatabase: Use ValueType::matchParameter for *var parameters 2019-08-01 13:29:44 +02:00
Daniel Marjamäki dbddc321e8 SymbolDatabase: Try to match function parameters with unknown types 2019-08-01 13:25:03 +02:00
Rikard Falkeborn f6726b76ae Fix 9215 (add tilde for missing destructor override warning) (#2057) 2019-08-01 10:43:45 +02:00
amai2012 8a934805ed Convert InvalidValueType to enum class 2019-07-31 22:56:16 +02:00
amai2012 b0fbbb5aa7 Convert SHOWTIME_MODES to enum class 2019-07-31 22:35:51 +02:00
Daniel Marjamäki 8deb855b41 Fix ValueType::matchParameter for 'const float *' => 'signed long long' 2019-07-31 18:55:55 +02:00
Daniel Marjamäki 91ca6165eb SymbolDatabase: Use ValueType::matchParameter for expression parameters 2019-07-31 18:35:56 +02:00
Daniel Marjamäki 70ac607a5c SymbolDatabase: extend usage of ValueType::matchParameter for variable parameters 2019-07-31 18:25:47 +02:00
Daniel Marjamäki c51f44ce4c SymbolDatabase: extend usage of ValueType::matchParameter for variable parameters 2019-07-31 18:24:15 +02:00
Daniel Marjamäki 1eb5f2266c ValueType::matchParameter: Fix matching of char** and void* 2019-07-31 16:23:50 +02:00
Daniel Marjamäki a3dc2db77a SymbolDatabase: Use ValueType::matchParameter for variable address parameters 2019-07-31 12:38:36 +02:00
Daniel Marjamäki 039d49bcb1 Improve ValueType::matchParameter for pointers with different types 2019-07-31 12:12:17 +02:00
Daniel Marjamäki 35a3a34632 Revert "SymbolDatabase: Use ValueType::matchParameter" 
This reverts commit cea00a8e09.
 2019-07-31 12:07:07 +02:00
Daniel Marjamäki cea00a8e09 SymbolDatabase: Use ValueType::matchParameter 2019-07-31 11:20:43 +02:00
orbitcowboy a9bdf99e07 std.cfg: Added *experimental* support for math constants liken M_PI. These are *NOT* standard, but they are supported by GCC/Clang and VS. 2019-07-31 11:11:01 +02:00
Daniel Marjamäki 728ac6ae2e SymbolDatabase: Use ValueType::matchParameter for char literal parameters 2019-07-31 09:35:32 +02:00
rebnridgway e629f9a90f Calculate token scopes in advance rather than as the tokenlist is iterated (#2038) 
* Removed redundant scope calculation

* Add scope propagation code to insertToken

* Add relevant scope code to Token class

* Add code to calculate the scope of Tokens

* Add calculateScopes method to class

* Add missing include for shared_ptr
 2019-07-31 09:19:27 +02:00
IOBYTE 9436f72a94 Fix daca dnsdist crash (#2053) 2019-07-31 09:18:43 +02:00
Daniel Marjamäki e58e51ee14 SymbolDatabase::findFunction: For string literal, a std::string parameter is a better match than a void* parameter 2019-07-30 21:20:01 +02:00
Daniel Marjamäki f5c269a191 SymbolDatabase: Use ValueType::matchParameter for string literal parameters 2019-07-30 21:02:35 +02:00
Daniel Marjamäki d5d50d9b17 ValueType::matchParameter: Improved constness matching 2019-07-30 09:19:51 +02:00
Daniel Marjamäki 914430dede Appveyor: A quick fix to make Appveyor happy, revert the changes 2019-07-30 07:59:28 +02:00
Daniel Marjamäki 88e3199372 SymbolDatabase: Use ValueType::matchParameter for numeric literal parameters 2019-07-30 07:48:14 +02:00
Daniel Marjamäki bf219aecde SymbolDatabase::findFunction: Use ValueType::matchParameter for expression parameters 2019-07-30 07:14:05 +02:00
Daniel Marjamäki f13b1a0bce SymbolDatabase: Use ValueType::matchParameter for boolean parameters 2019-07-29 22:58:12 +02:00
Daniel Marjamäki ed5ae7c5fa SymbolDatabase::findFunction: Use ValueType::matchParameter for float literal parameters 2019-07-29 21:53:39 +02:00
Daniel Marjamäki cccbfaa0e4 SymbolDatabase::findFunction: Use getArguments utility function 2019-07-29 21:17:31 +02:00
Daniel Marjamäki 3ad9d6a1ad Make the code a bit more robust 2019-07-29 20:57:16 +02:00
Daniel Marjamäki f63011c219 Try to fix daca@home crashes 2019-07-29 19:06:41 +02:00
Daniel Marjamäki 9e738db435 SymbolDatabase: expand usage of ValueType::matchParameter for non-pointer variables 2019-07-29 18:46:50 +02:00
Daniel Marjamäki 3066c0653c Fixed #8668 (SymbolDatabase: Wrong findFunction match for const pointer argument) 2019-07-29 18:14:23 +02:00
Daniel Marjamäki 607b3daca8 ValueFlow: Improve bailout for structs etc in loops 2019-07-29 15:51:48 +02:00
Daniel Marjamäki a1214348c0 Fixed #8974 (false negative regression about never used variable) 2019-07-29 08:49:19 +02:00
IOBYTE 07ac6c5f08 Fix ternary operator simplification to accept template parameters. (#2048) 
Also simplify decltype of bool and numeric literals in template
arguments.
 2019-07-28 21:52:52 +02:00
IOBYTE badc573b80 Fix #9224 (Performance regression in template parsing: 250x - 1200x slower) (#2046) 2019-07-28 09:25:18 +02:00
Daniel Marjamäki e8ec6e6f11 Fixed #8349 (Noisy nullPointerRedundantCheck) 2019-07-27 20:03:06 +02:00
Rikard Falkeborn 0324bbf63c dmake: Fix check of last header file in lib.pri (#2045) 
Since the number of test files is larger than the number of lib files,
this only caused an extra harmless '\' being printed after the last
header file in lib.pri. If the number of test files would have been
smaller than the number of lib files, the generated lib.pri would have
been broken.
 2019-07-27 09:45:04 +02:00
Daniel Marjamäki 1c75257212 Token::hasKnownIntValue: Fix when there is one possible int value and one known BUFFER_SIZE value, it should return false. 2019-07-27 08:25:07 +02:00
Rikard Falkeborn f95d193e22 Fix #8282 (memleak FP when returning std::pair) (#2039) 2019-07-26 07:03:58 +02:00
Paul Fultz II ee28a45db4 Fix issue 9235: new crash in astutils isVariableChanged from endless recursion (#2040) 2019-07-26 07:03:21 +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
Rikard Falkeborn a69a570505 Fix FP leakVarNotUsed with freopen() and stdin (#2034) 
One usecase for freopen() is to redirect input and output streams to
files. For that, the return value is not needed.
 2019-07-25 21:09:23 +02:00
Daniel Marjamäki 9009eeb83d Tweak Function::isSafe() 2019-07-25 20:52:24 +02:00
Daniel Marjamäki 4611cbb5bb One more fix for Function::isSafe 2019-07-25 17:31:52 +02:00
Daniel Marjamäki 09be07f2b2 Fix Function::isSafe 2019-07-25 17:28:32 +02:00
Daniel Marjamäki 45d1ca6f7c Safe checks: Clarify a warning message 2019-07-25 17:19:51 +02:00
Paul Fultz II 744a94ad5a Fix issue 9231: FP constParameter - argument passed parent ctor (#2032) 2019-07-24 20:59:58 +02:00
IOBYTE 999d2f797c Fix #9225 (Crash on valid C++14 code) (#2031) 
* Fix #9225 (Crash on valid C++14 code)

This only fixes the crash. Specialization of nested templates is still
broken.

* fix cppcheck warnings

* fixed another cppcheck warning
 2019-07-24 19:20:19 +02:00
Daniel Marjamäki bbcffce529 Fixed #9062 (False positive "condition is always true") 2019-07-24 19:16:35 +02:00
Daniel Marjamäki e11dcc609b Fixed #7758 (Function array is seen as Uninitialized) 2019-07-24 18:20:23 +02:00
Daniel Marjamäki 7c0b011c05 Fixed #9230 (Improve check: integer conversion overflow in return) 2019-07-24 16:17:52 +02:00
Daniel Marjamäki 2da75d5af4 Split up Cppcheck attribute. low and high values can be specified separately and they can be used for variables also. 2019-07-24 15:08:26 +02:00
versat 641b350cf7 astutils.h: Remove conflicting function declaration for isAliased() 
This function was made static with commit 6c82685fbf
 2019-07-24 13:23:54 +02:00
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
Daniel Marjamäki 6c82685fbf Fixed compiler warnings 2019-07-24 11:01:38 +02:00
Paul Fultz II bb52a63c4e Add check for const variables 
When a local reference is declared, this will check if that local reference can be declared as `const`.
 2019-07-24 09:59:01 +02:00
Paul Fultz II 4c3191e577 Lower recursion limit when using asan (#2013) 2019-07-24 09:57:53 +02:00
Daniel Marjamäki 753efb4c9b Function::isSafe: handle global/namespace functions better 2019-07-24 08:23:05 +02:00
Daniel Marjamäki 3ec45acc43 astyle formatting 
[ci skip]
 2019-07-24 08:22:12 +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
IOBYTE 5ad5cfcc29 Fix #9217 (Regression: Memory explodes in simplifyTemplateAliases) (#2021) 
* Fix #9217 (Regression: Memory explodes in simplifyTemplateAliases)

* fix use after free when nothing was copied
 2019-07-23 21:28:24 +02:00
Daniel Marjamäki 4fb6c27276 Modernize: Use enum class 2019-07-23 14:29:02 +02:00
Daniel Marjamäki 680fbfe612 Fix Cppcheck warning, unused value 2019-07-23 14:10:34 +02:00
Daniel Marjamäki 681bd0a911 GUI: Better settings for extended safe checks 2019-07-23 11:54:38 +02:00
Daniel Marjamäki 74bd2aa680 Use range for loop 2019-07-22 12:24:16 +02:00
Daniel Marjamäki a81c39af09 Replace 'unsigned' with 'nonneg' 2019-07-22 11:25:51 +02:00
Daniel Marjamäki 7ed3db7b32 astyle formatting 
[ci skip]
 2019-07-22 10:38:17 +02:00
Rikard Falkeborn 8cd1d5a47d Use library for memleak checks (#2002) 
* Use library for memleak checks

Change memleakOnRealloc and leakReturnValNotUsed to use library
configuration instead of hardcoding "realloc".

In order to do so, some care needs to be taken when matching for a
reallocation function, since it can no longer be assumed that the input
to be allocated is the first argument of the function. This complicates
getReallocationType() and checkReallocUsage() but is necessary in order
to handle for example freopen() properly.

Also, refactor memleakOnRealloc check to reduce duplicated code when
checking "a" and "*a". When doing so, extending the check to look for
arbitrary number of "*" can be done for free (just change an if
statement to a while statement). Most likely, this is an unusual case in
real world code.

* Remove redundant whitespace in Token::Match()

* Run on simplified checks

* Fix cppcheck warning
 2019-07-22 10:37:36 +02:00
Rikard Falkeborn abea580b78 Fix FP memory leak with unknown function call in condition (#2012) 
* Fix FP memory leak with unknown function call in condition

This was introduced in 8513fb81d2 when
fixing memory leaks for global variables allocated in condition. The
refactored code had an inconsistency where c and c++ code behaved
slightly differently when `var` is NULL. This seemed to not have an
impact as the code was written prior to 8513fb81d2,
but when the same code was used for conditions, FPs were introduced.

The introduced FPs were memleak warnings when there should have been an
information message about missing configurations for code like

	void f() {
		char *p = malloc(10);
		if (set_data(p)) {}
	}

Fix this by always returning true if varTok->Variable() is NULL for
both c and c++ code.

* Improve function name
 2019-07-18 15:23:19 +02:00
Paul Fultz II 8cd8a2671c Fix issue 9211: No error on divide by zero outside template instatiation 
I am not sure how to add a test for this.
 2019-07-18 14:55:30 +02:00
Daniel Marjamäki 28e5133f50 Refactoring: Use range for loop 2019-07-18 14:55:01 +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 421a8da6a8 Try to clarify signConversion message 2019-07-17 22:41:24 +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 d11d6f112e Detect shadowed arguments 2019-07-17 17:08:42 +02:00
Daniel Marjamäki 0be78bbde6 Rename fileInd to fileIndex 2019-07-17 16:28:47 +02:00
Daniel Marjamäki 90a215af0e Rephraze performance message. /would be faster/could be faster/ to indicate that Cppcheck is not _sure_ that it would be faster 2019-07-17 16:06:10 +02:00
Daniel Marjamäki 64ef879ebf Fix syntaxError for struct initialization 2019-07-17 15:21:17 +02:00
Daniel Marjamäki 9973db3a71 Modernize: Use enum class for Library::Action and Library::Yield 2019-07-17 11:39:30 +02:00
Daniel Marjamäki ec4d68e231 Modernize: use enum class 2019-07-17 10:43:18 +02:00
Daniel Marjamäki 2afd5f5dd0 Modernize: Use enum class 2019-07-17 10:39:06 +02:00
Daniel Marjamäki b15e6801a4 Replace 'unsigned' with 'nonneg' in tokenizer 2019-07-17 10:36:49 +02:00