Commit Graph

9581 Commits

Author SHA1 Message Date
Sebastian c3c3d6770c
Fix #9478: Valueflow: printf does not change value (#2388)
Format-string arguments are now marked to have `in` direction, except
for `scan`-functions (like `scanf`) where these arguments are explicitly
marked to have `out` direction.
2019-11-24 01:40:31 +01:00
Daniel Marjamäki ab2274b8ad AST: lambdas and scopes in expressions 2019-11-23 21:36:36 +01:00
Daniel Marjamäki ebd32cfd73 Syntax error: if (retval==) 2019-11-23 18:50:46 +01:00
IOBYTE fb1d60bfb1 fix syntax error for num.operator std::string()[0] (#2389) 2019-11-23 17:42:24 +01:00
Dmitry-Me 5a48ac0c6e Improve test coverage for invalid use of bool parameters 2019-11-22 18:11:38 +03:00
IOBYTE df952926f8 fix syntax error for a.operator++() ? a.operator--() : 0 (#2382) 2019-11-20 22:13:32 +01:00
Dmitry-Me 98488790a1 Improve test coverage for %jd used with scanf() 2019-11-20 18:10:56 +03:00
IOBYTE 590aeea8f8 Fix #9483 (Assertion `tok && tok->str() == ">"' failed) (#2381) 2019-11-20 07:02:25 +01:00
Rikard Falkeborn f6a2034a4c Add regression tests for fixed crashes (#2379)
The invalid code in Trac tickets #8750, #8753, #8756, #8762, #8764
and #8765 previously crashed cppcheck. Now it throws a syntax error
instead. Add some tests for these tickets.
2019-11-19 21:50:53 +01:00
Armin Müller 130ebe4b85 Typos found by running "codespell" (#2380) 2019-11-19 20:02:24 +01:00
Dmitry-Me cfac54c42a Improve test coverage for %I32d used with scanf() 2019-11-19 18:05:21 +03:00
Paul Fultz II 479fbb85a2 Fix issue 9443: Internal error: Token::astOperand2() cyclic dependency. (#2376)
* Improve nested init lists

* Fix issue 9443: Internal error: Token::astOperand2() cyclic dependency.
2019-11-19 11:38:03 +01:00
Dmitry-Me 55051b777b Remove unneeded string copy 2019-11-19 10:19:13 +03:00
orbitcowboy 2ff18b76ec test std.cfg: Improved tests for strncpy and strrchr . 2019-11-18 13:53:42 +01:00
orbitcowboy d5d2915873 test std.cfg: Improved tests for strncmp and strncat. 2019-11-18 13:43:49 +01:00
Paul Fultz II ed1acc319d Fixx issue 9355: FP constParameter when returning non-const reference to struct member (#2373) 2019-11-18 06:39:50 +01:00
IOBYTE 7f6ebaa6b2 fix syntax error for VTK_LEGACY_BODY(vtkMatrix3x3::operator[], "VTK 7.0"); (#2372) 2019-11-18 06:38:53 +01:00
Daniel Marjamäki f5e3dc9a38 Improved fix for #8978 (False positive: Variable assigned value that is never used when assigning via iterator) 2019-11-17 12:08:21 +01:00
Paul Fultz II 4ebf54d090 Fix issue 9437: Dont assume init list constructor for strings (#2366)
* Fix issue 9437: Dont assume init list constuctor for strings

* Update the schema

* Add documentation
2019-11-17 03:22:04 +01:00
Daniel Marjamäki 5654630099 Fixed #8978 (False positive: Variable assigned value that is never used when assigning via iterator) 2019-11-16 19:49:54 +01:00
Daniel Marjamäki 7cd7aff60a Fixed #9285 (Misleading warning message) 2019-11-16 17:24:54 +01:00
Daniel Marjamäki bae4faa786 Fixed #9422 (FP uninitdata - writing pointer to output stream) 2019-11-16 11:47:57 +01:00
IOBYTE 754c1fff66 fix syntax error for conversion operator for type with global namespace (#2365)
* fix syntax error for conversion operator for type with global namespace

* fix syntax error when taking address of operator function

* fix syntax error for using ::operator "" _a;

* fix syntax error for template<> void operator "" _h<'a', 'b', 'c'>() {}

* fix syntax error for operator in parentheses
2019-11-16 08:03:13 +01:00
IOBYTE 3a617fa04a Fix #9472 (Syntax error on valid C++ code) (#2363)
There are probably a lot more valid code patterns that generates syntax
errors so I added "operator" to the error message to make it easier to
find them.
2019-11-15 07:03:57 +01:00
Daniel Marjamäki 7e0fc4fb00 Tokenizer: Detect more syntax errors when operator does not have operands 2019-11-14 21:18:31 +01:00
orbitcowboy dbbb7f544a test std.cfg: Improved strlen() tests. 2019-11-14 16:45:27 +01:00
orbitcowboy ea92695e54 test std.cfg: Improved sscanf() tests. 2019-11-14 16:38:30 +01:00
orbitcowboy ade54bef3f test std.cfg: Added better tests. 2019-11-14 10:48:23 +01:00
IOBYTE 2eb575d990 Fix #9468 (Syntax error on valid C++) (#2358) 2019-11-14 09:26:21 +01:00
orbitcowboy dd30f37642 std.cfg: Merged 'wcscmp' and 'strcmp' configurations and added better tests. 2019-11-14 08:43:31 +01:00
orbitcowboy 20e2c513b6 test std.cfg: Added better test cases for toupper() and tolower(). 2019-11-14 08:31:00 +01:00
IOBYTE f88ae21d8f Fix #9467 (False positive on local variable when template specialization is used) (#2357) 2019-11-13 21:34:27 +01:00
orbitcowboy 09eaa412b1 std.cfg: Improved cfg for 'mbstowcs' 2019-11-13 16:55:17 +01:00
orbitcowboy aa5c42ffc5 test std.cfg: Addressed comments from 177eed122a (comments) 2019-11-13 15:07:57 +01:00
orbitcowboy 177eed122a std.cfg: Added 'indirect' flag for destination argument of 'mbstrtowc' function. 2019-11-13 14:34:02 +01:00
Paul Fultz II 7841430793 Fix issue 9428: FP uninitvar for pointer passed to sscanf (#2344)
* Add indirect to library cfg files

* Check indirect for non null arguments

* Reenable subfunction analysis

* Use indirect 1 when using not-null

* Parse correct string name

* Update documentation

* Make attribute optional
2019-11-13 12:46:54 +01:00
Daniel Marjamäki f5a6aa530d Fixed #9417 (FP uninitvar - member initialized in operator()) 2019-11-11 15:00:53 +01:00
orbitcowboy 02adb60f08 test std.cfg: Added a regression test for std::vsprintf(). The first argument is allowed to be a null pointer. 2019-11-11 09:29:16 +01:00
Rikard Falkeborn 38dea4719b Fix #9166 (print proper types in invalidCast message) (#2347)
* Fix #9166 (print proper types in invalidCast message)

* Use ValueType->str()

* astyle

* Set default sign to avoid issues on different platforms
2019-11-11 07:17:50 +01:00
Rikard Falkeborn af170c8e3f Add regression test for #8923 (#2348)
This was fixed in 5a32d2d017. Add a regression test
with array arguments.
2019-11-11 07:15:24 +01:00
Daniel Marjamäki eaa5bfcadd Remove 'unsafeClassDivZero' warning. The software verification will cover this better. 2019-11-10 16:49:34 +01:00
Daniel Marjamäki fcc5fad3ed Fixed #9113 (false positive: (error) Buffer is accessed out of bounds) 2019-11-10 16:42:48 +01:00
Paul Fultz II 6f29e299fc Fix issue 9439: false positive: unique_ptr and nullPointerRedundantCheck (#2346) 2019-11-10 09:44:59 +01:00
Paul Fultz II c1da6c7dd2 Fix issue 9461: False positive: Reference to temporary returned using trailing return type (#2345) 2019-11-10 09:44:04 +01:00
Rikard Falkeborn 2d326c011d Add regression test for #9028 (#2343)
Ticket #9028 was fixed in 5800692fa1, add a test case where the
class definition is seen.
2019-11-10 08:28:46 +01:00
Rikard Falkeborn 11319a397a ValueFlow: Add test with hexadecimal floating point literal (#2342) 2019-11-10 08:27:55 +01:00
IOBYTE 0fed6f0091 fix clang testsuite crash (#2341) 2019-11-09 18:00:21 +01:00
Daniel Marjamäki 81fff2edf1 Fixed #9464 (Import compile database; only check given configuration) 2019-11-09 17:51:42 +01:00
Paul Fultz II c75bbbe253 Fix issue 9404: False positive: Either the condition 'if(x)' is redundant or there is possible null pointer dereference: a->x (#2322)
* Fix issue 9404: False positive: Either the condition 'if(x)' is redundant or there is possible null pointer dereference: a->x

* Use simpleMatch

* Add a test case for the FP

* Check if expression is changed

* Check for no return scope

* Use simpleMatch
2019-11-08 08:11:41 +01:00
Rikard Falkeborn 1fcbd696be Token::ConcatStr(): Handle mixed string literals (#2337)
Improve handling of adjacent string literals of different types.

Example of adjacent string literals: "ab" L"cd".

In C89, C++98 and C++03, this is undefined. As of C99 and C++11, this is
well defined and the two string literals are concatenated to L"abcd".
C11 and C++11 introduces the utf16, utf32 and (C++ only) utf8 string
types. Concatenating any of these with a regular c-string works exactely
as the wide string example above. The result of having two adjacent
string literals with different prefix is implementation defined, unless
one is an UTF-8 string literal and the other is a wide string literal.
In this case the behaviour is undefined.

Ignore the undefined and ill-formed programs (this behaviour is unchanged)
and make sure that concatenating a plain c string literal with a prefixed
one works correct (in C99 and C++11 and later versions). It also makes the
behaviour consistent since previously, "ab" L"cd" would result in "abcd"
while L"ab" "cd" would result in L"abcd".

It also means the somewhat awkward updatePropertiesConcatStr() test can
be removed since the added tests would not work if update_properties()
was not called in concatStr().

Since the prefix is stored in the token, testing the type of the string
is not relevant in TestSimplifyTokens. It is tested extensively in
TestToken::stringTypes().
2019-11-08 08:03:45 +01:00