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363 Commits

Author SHA1 Message Date
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))" 
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
Daniel Marjamäki d35ce5f0db ValueFlow: Better handling of calculated function arguments in valueFlowSubFunction 2014-08-04 12:31:04 +02:00
Daniel Marjamäki 344016f7ab ValueFlow: Handle string values in valueFlowSubFunction 2014-08-04 12:13:15 +02:00
Daniel Marjamäki 79fc549de0 ValueFlow: start adding valueflow handling of strings and pointer aliases 2014-08-03 20:11:22 +02:00
Daniel Marjamäki f908959196 ValueFlow: improved analysis in for loops to avoid fp 2014-08-01 16:12:57 +02:00
Daniel Marjamäki 688b798b88 ValueFlow: Cleanup variable 2014-08-01 08:59:07 +02:00
Daniel Marjamäki 57c2e928d1 ValueFlow: Simple multivariable control flow analysis to avoid FP when 'control variable' is used 2014-08-01 07:35:15 +02:00
Daniel Marjamäki 25846cf223 ValueFlow: Fix for if/else valueflow analysis 2014-07-30 18:12:33 +02:00
Daniel Marjamäki 15bb447fdc Fixed #5965 (False positive zerodiv - loop iterating over double variable) 2014-07-17 08:44:55 +02:00
Daniel Marjamäki 5bdd197b01 Fixed #5981 (FP: nullPointer on repeated switch) 2014-07-16 09:12:56 +02:00
Daniel Marjamäki c531749d7a ValueFlow: Small cleanups 2014-07-15 10:36:13 +02:00
Daniel Marjamäki 6afe9a4fbe astyle formatting 
[ci skip]
 2014-07-08 06:44:57 +02:00
amai2012 9b38ae73c1 Attempt to fix 2 Coverity messages. 
Replace a few unsigned int by std::size_t
 2014-07-07 21:25:30 +02:00
Daniel Marjamäki 987ce5a408 Fixed #5968 (False positive: 'Possible null pointer dereference' when checking null in negated conjuction) 2014-07-07 17:48:58 +02:00
Daniel Marjamäki 26a3bdfe00 ValueFlow: Cleanup code by using SymbolDatabase provided scope info 2014-07-07 16:34:21 +02:00
Daniel Marjamäki b7d7633b97 ValueFlow: Improved analysis after switch 2014-06-30 17:56:42 +02:00
Daniel Marjamäki f1762f9ed6 Fixed #5939 (fp: Possible null pointer dereference, after check against NULL in for loop) 2014-06-30 07:26:48 +02:00
Daniel Marjamäki df799f97c5 valueFlowBefore: better analysis of conditional assignment 2014-06-30 00:02:49 +02:00
Daniel Marjamäki 4f43e4f9aa Fixed #5959 (ValueFlow: return value from subfunction) 2014-06-29 18:04:38 +02:00
Daniel Marjamäki 893996d182 Fixed #5937 (ValueFlow: wrong analysis of calculations with different variable operands) 2014-06-29 10:57:39 +02:00
Daniel Marjamäki 9eaadc81e2 Fixed #5861 (valueFlowSubFunction: fp for float value) 2014-06-28 12:04:20 +02:00
Daniel Marjamäki 5af96c2dd8 Fixed #5947 (valueFlowForward: forward conditions not handled properly) 2014-06-25 16:00:56 +02:00
Daniel Marjamäki c77786a745 valueFlowAfterCondition: wrong analysis for floats 2014-06-25 06:17:44 +02:00
Daniel Marjamäki 54aede9086 Fixed #5941 (ValueFlow: Wrong value in subfunction under ?) 2014-06-24 19:30:46 +02:00
Daniel Marjamäki ae81b09b58 Refactoring: Move isScopeNoReturn implementation to library and reuse it both in ValueFlow and Tokenizer 2014-06-22 19:13:15 +02:00
Daniel Marjamäki f78cbda2db Refactoring: Removed CheckNullPointer::nullPointerByCheckAndDeRef and implemented needed analysis in ValueFlow instead. 2014-06-22 10:02:14 +02:00
Daniel Marjamäki ef81bc363a ValueFlow: analysis in condition. 2014-06-19 17:29:41 +02:00
Daniel Marjamäki dec251ac44 ValueFlow: Refactoring. Use utility function isVariableChanged. 2014-06-19 05:41:19 +02:00
Daniel Marjamäki 84581817f6 ValueFlow: Improved valueFlowForward. RHS in assignment. 2014-06-18 21:07:01 +02:00
Daniel Marjamäki 13761927ff ValueFlow: better analysis in valueFlowAfterCondition of 'if|while ( %var% )' etc 2014-06-18 06:57:48 +02:00
Daniel Marjamäki 9999ce9468 ValueFlow: extend aftercondition analysis below conditional code 2014-06-18 05:51:23 +02:00
Daniel Marjamäki 847bb44bdd ValueFlow: Improved analysis after condition when ! operator is used 2014-06-16 16:39:41 +02:00
Daniel Marjamäki a27ca11b85 Fixed #5916 (ValueFlow: Add a valueFlowAfterCondition() function) 2014-06-15 16:47:01 +02:00
Daniel Marjamäki ad879320e5 ValueFlow: Fixed 'function call => calculation' value flow 2014-06-13 16:34:57 +02:00
PKEuS adf38fcfd0 Further include cleanup 2014-05-24 12:50:04 +02:00
Matthias Krüger 879023b6b2 travis: compile one pair of jobs with -DCHECK_INTERNAL and run --enable=internal,... 
suppress warnings in testtoken.cpp
fix warnings in valueflow
 2014-05-19 21:44:00 +02:00
PKEuS 09e03fa6ef Fixed some complaints of PVS Studio 2014-05-19 14:37:54 +02:00
PKEuS 5fbd58d98d Fixed messages of CheckInternal, fixed a false positive. 2014-05-18 20:39:52 +02:00
PKEuS 70dfb55f21 Simplified some Token::Match patterns 2014-05-11 17:50:58 +02:00
Daniel Marjamäki 5a23b739da ValueFlow: Improved bailout when variable is reassigned 2014-05-03 12:49:07 +02:00
Daniel Marjamäki fadc27092e Fixed #5752 (FP (error) Possible null pointer dereference) 2014-05-01 15:15:26 +02:00