V792. Size of every element in X array is not equal to divisor. V2543. Sorting keys priority will be reversed relative to the order of 'OrderBy' method calls. V549. Implicit type conversion N argument of function 'foo' to 32-bit type. Suspicious access to element by a constant index inside a loop. Suspicious assignment inside the conditional expression of 'if/while/for' statement. V537. V6091. V6067. It is possible that this 'else' branch must apply to the previous 'if' statement. If the 'GetSign' function receives 0, undefined behavior will occur. V5616. Consequently, the function needs to have a statement that returns the object of the corresponding type. V6087. V3514. V1010. The standard signal handling functions should not be used. The expression is excessive or contains a logical error. V518. The language standard does not define order in which 'Foo' functions are called during evaluation of arguments. When we call a function by itself (e.g. Type implementing IEquatable interface does not override 'GetHashCode' method. Potential use of invalid data. Use of uninitialized variable 'Foo'. Check lines: N1, N2. Consider inspecting this expression. AUTOSAR. V1086. V752. V578. Cast should not convert pointer to function to any other pointer type. Expression contains a suspicious mix of integer and real types. V3136. Try to avoid many return statements in your code. V3122. Variable is used after it is moved. The 'goto' statement shouldn't jump to a label declared earlier. operator works in a different way than it was expected. Array element should not be initialized more than once. V646. Parameter is not used inside method's body. There should be no attempt to write to a stream that has been opened for reading. Expression was implicitly cast from integer type to real type. V6031. V3537. V703. This can result in confusion. V6080. Suspicious subexpression in a sequence of similar comparisons. MISRA. V5010. The operation is executed 2 or more times in succession. V2573. V714. I recently fixed something similar in #2898 which is not yet merged. Subtraction, >, >=, <, <= should be applied only to pointers that address elements of the same array. V701. Perhaps, this is a typo and 'X' variable should be used instead of 'Y'. V2523. Consider inspecting the 'T foo = foo = x;' expression. Expression of sizeof(T)*N kind is summed up with pointer to T type. Decreased performance. V2607. Suspicious division. V5610. Possibly, it was intended to be escaped. Does the 500-table limit still apply to the latest version of Cassandra? Potential XXE vulnerability. This variable is passed by reference to the 'Foo' function in which its value will be used. Check items X, Y, Z, in lines N1, N2, N3, V526. V688. V3125. The 'Foo' function receives class-type variable as 'N'th actual argument. Use of a pointer to FILE when the associated stream has already been closed. Buffer overflow is possible. V121. Pointer is cast to a more strictly aligned pointer type. V1016. The 'malloc' function allocates suspicious amount of memory calculated by 'strlen(expr)'. V1003. Some statements require values to be provided, and others dont. One pair of parentheses is unnecessary or misprint is present. int sometimes ( int x) { if (x > 0) { return 2*x; } } MISRA. V3039. V3186. Verifying that a pointer value is not NULL is not required. MISRA. When compiling the above example, your compiler may issue a warning about line 9 being unreachable. V6066. 565), Improving the copy in the close modal and post notices - 2023 edition, New blog post from our CEO Prashanth: Community is the future of AI. V3003. V6043. To learn more, see our tips on writing great answers. V585. V3050. V3535. Consider inspecting the expression. Consider throwing it by value instead. Memory allocation and deallocation functions should not be used. V825. V577. Then main returns a value of 0 (typically used to report success) to end the program. Consider inspecting the condition. An odd sequence of assignments of this kind: A = B; B = A; V3038. V111. It is likely that a wrong variable is being compared inside the 'for' operator. Pointer to local array 'X' is stored outside the scope of this array. V2550. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Dangerous cast of 'this' to 'void*' type in the 'Base' class, as it is followed by a subsequent cast to 'Class' type. It is dangerous to create a local variable within a loop with a same name as a variable controlling this loop. Non-atomic modification of volatile variable. V3508. If no value is provided, the compiler will produce a syntax error. V602. V3095. Already on GitHub? V3140. The ', " or \ characters and the /* or // character sequences should not occur in a header file name. It is more efficient to catch exception by reference rather than by value. We know it knows for two reasons. Expression containing increment (++) or decrement (--) should not have other side effects. Value of variable is checked after use. Pointer to an object of the class is cast to unrelated class. The analyzer has detected a non-void function with an execution path that does not return a value. V567. operators are used for accessing members of the same object. For more information on hiding warnings or treating warnings as errors, see Configuring Warnings in Visual Basic. Custom declaration of standard type. V3543. Here is a full example. V1026. V627. Consider inspecting it. V2572. The SUCCEEDED or FAILED macro should be used instead. The functions from time.h/ctime should not be used. Recurring sequence of explicit type casts. V671. V6089. Variables are initialized through the call to the same function. You can return a value from a Function procedure in any of the following ways: Assign the value to the Function procedure name and then perform an Exit Function statement. MISRA. MISRA. V730. The argument's value is greater than the size of the collection. V6018. Decreased performance. V3011. MISRA. V2595. No objects are passed to the 'std::scoped_lock' constructor. V5005. V3183. The value of the captured variable will be overwritten on the next iteration of the loop in each instance of anonymous function that captures it. V790. Property setter / event accessor does not utilize its 'value' parameter. Why do we ask to use Business V1004. Postfix increment/decrement is senseless because this variable is overwritten. In lieu of a data type, void functions use the keyword "void." A void function performs a task, and then control returns back to the caller--but, it does not return a value. MISRA. V6063. The 'operator &&', 'operator ||', 'operator ,' and the unary 'operator &' should not be overloaded. AUTOSAR. You may or may not use the return . Function receives an odd argument. MISRA. V641. Check for an error or bad coding style. It is possible that ',' comma is missing at the end of the string. MISRA. V5606. Suspicious bitwise operation was detected. Consider reviewing the correctness of 'X' item's usage. V2522. V113. Unconditional 'break/continue/return/goto' within a loop. Two 'if' statements with identical conditional expressions. Asking for help, clarification, or responding to other answers. V2554. Use 'double.isNaN()' method instead. MISRA. It is suspicious and can possibly be an error. V628. The standard signal handling functions should not be used. V708. The macro with the 'setjmp' name and the function with the 'longjmp' name should not be used. If total energies differ across different software, how do I decide which software to use? This expression can be simplified. V5612. V2507. V819. i'm not sure if this is intentional behavior. The 'std::uncaught_exception' function is deprecated since C++17 and is removed in C++20. As soon as your program hits that, it will stop executing the loop and return to the main function, performing only a single iteration of the loop. The object is already of the same type. Consider inspecting the expression for function call. Object should not be assigned or copied to an overlapping object. return expressionopt ; The value of expression, if present, is returned to the calling function. C compiling Error: non-void function does not return a value in all control paths - CS50. V551. V745. Comparison of arrays, strings, collections by reference. How to Make a Black glass pass light through it? Operand of sizeof() operator should not have other side effects. Check lines: N1, N2. MISRA. The loop counter should not have floating-point type. Consider using the extended version of the 'foo' function here. The switch statement does not cover all values of the enum. Iterators are passed as arguments to 'Foo' function. A 'break' statement is probably missing in a 'switch' statement. Consider casting operands, not the result. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. ps: thanks for the awesome library. The analysis results could be incomplete. So, the compiler generates an error. OWASP. MISRA. The analyzer will not issue a warning for the following code fragment: There will also be no undefined behavior if, during the function execution, another function that does not return control, is called. The 'while' operator has empty body. Value of the essential character type should be used appropriately in the addition/subtraction operations. I am interested to try it on Consider inspecting the expression. Consider refactoring the 'Foo' function. When you include the return (0) statement, you are saying that the function returns a value of 0. V3131. V2505. The value is out of range of enum values. NullReferenceException is possible. Casting pointer to a type of a larger size is an implementation-defined behavior. WPF: writing and reading are performed on a different Dependency Properties. Identical sub-expressions to the left and to the right of 'foo' operator. V2551. Consider assigning event to a local variable before invoking it. V1011. The 'throw' keyword could be missing. Possible incorrect initialization of variable. Destructor of the object will be invoked a second time after leaving the object's scope. Type casting is used 2 times in a row. Empirical analysis. It is possible that a call to 'Start' method is missing. This can result in an overflow. EOF should not be compared with a value of the 'char' type. Possible dereference of invalid iterator 'X'. V733. Expressions that use comma operator ',' are dangerous. One pair of parentheses is unnecessary or typo is present. V550. V2585. The method does not override another method from the base class. V3506. MISRA. V3182. Consider inspecting the expression. Significant bits may be lost. V830. MISRA. The 'continue' operator will terminate 'do { } while (false)' loop because the condition is always false. Classes should not be compared by their name. V598. V677. V3532. The 'throw' operator does not have any arguments and is not located within the 'catch' block. The comma operator should not be used. Consider using '||' and '&&' instead. Length should be probably multiplied by sizeof(wchar_t). Member operator[] of 'foo' class has a 32-bit type argument. Pointer was used before its check for nullptr. Function receives an odd argument. V3171. The .exe and .i files are not supported. V6077. Then the ',' operator returns a resulting value from the right side of the expression. I am getting this error when trying to compile the below code. It is possible that there is an error. Potential incorrect use of item 'X'. Unreachable code should not be present in the project. Unchecked tainted data is used in expression. Two or more case-branches perform the same actions. V3551. Consider utilizing 64-bit compiler if possible. The compiler may issue a warning diagnostic message about unreachable code if it finds any statements placed after the return statement. The 'if/if-else/for/while/foreach' statement and code block after it are not related. Unsigned value is compared to the NN number. V6024. Its representation is implementation-defined. The 'if' 'else if' construct should be terminated with an 'else' statement. V3552. check your Spam/Junk folder and click the "Not Spam" button for our message. Shift by N bits is greater than the size of type. OWASP. Making statements based on opinion; back them up with references or personal experience. If expression is omitted, the return value of the function is undefined. Hi, been using 2.0.1 so far over the proposed workaround (void function instead of non-void function). Dangerous call of 'Foo' function. Execution resumes in the calling function at the point immediately following the call. V3107. Such a pointer will become invalid. Logical literal belongs to second operator with a higher priority. V1080. To tell the compiler that a function does not return a value, a return type of void is used. V3152. This can cause concurrency issues. AUTOSAR. V3088. The '?.' See NN argument of function 'Foo' in derived class and base class. V6012. Calling the 'SingleOrDefault' method may lead to 'InvalidOperationException'. V505. Suspicious declaration. A value of variable is not modified. V2513. V6035. :' operation: implicit type conversion to memsize type. Consider inspecting the expression. Non-atomic modification of volatile variable. It is possible that another argument should be passed instead. V2557. Three potential reasons for issue the warning (elevated to an error) in spite of this come to mind: Due to the way the compiler is constructed, warnings are generally reported early, and suppressing this warning based on later analysis would be difficult. V740. How to enter the PVS-Studio license and what's the next move, Release history for previous versions (before 7.00), Getting acquainted with the PVS-Studio static code analyzer on Windows, Build-system independent analysis (C and C++), Direct integration of the analyzer into build automation systems (C and C++), PVS-Studio C# installation on Linux and macOS, How to run PVS-Studio C# on Linux and macOS, Installing and updating PVS-Studio C++ on Linux, Installing and updating PVS-Studio C++ on macOS, How to run PVS-Studio C++ on Linux and macOS, Get started with PVS-Studio in Visual Studio, Using PVS-Studio with JetBrains Rider and CLion, Analyzing Visual Studio / MSBuild / .NET projects from the command line using PVS-Studio, Cross-platform analysis of C and C++ projects in PVS-Studio, How to use the OWASP diagnostic group in PVS-Studio, Analysis of C++ projects based on JSON Compilation Database, How to integrate PVS-Studio into CMake with a CMake module, How to analyze Unity projects with PVS-Studio, Integration of PVS-Studio analysis results into SonarQube, Speeding up the analysis of C and C++ code through distributed build systems (Incredibuild), How to display the analyzer's most interesting warnings, Baselining analysis results (suppressing warnings for existing code), Handling the diagnostic messages list in Visual Studio, How to view and convert analyzer's results, Viewing analysis results with C and C++ Compiler Monitoring UI, Notifying the developer teams (blame-notifier utility), Viewing reports in a SARIF format in Visual Studio Code, Filtering and handling the analyzer output through diagnostic configuration files (.pvsconfig), Excluding files and directories from analysis, Using the PVS-Studio extension for Visual Studio Code, How to use the PVS-Studio extension for Qt Creator, Analysis configuration file (Settings.xml). Non-void function must return value. Consider inspecting the expression. Size of array calculated by sizeof() operator was added to a pointer. The return value of non-void function should be used. Consider using the M_NN constant from . All integer constants of unsigned type should have 'U' suffix. Every switch-clause should be terminated by an unconditional 'break' or 'throw' statement. Return value is not always used. V6083. Regression: objToJSON "nonvoid function does not return a value" error is back #31463 Closed pkaleta mentioned this issue on Jun 24, 2020 BUG: NUMPY_IMPORT_ARRAY_RETVAL undeclared when installing pandas 0.18.1 #34969 Closed Sign up for free to join this conversation on GitHub . Possible incorrect order of arguments passed to method. AUTOSAR. The name of 'X' field/property in a nested type is ambiguous. V508. Thanks for contributing an answer to Stack Overflow! V1047. If the function has a return type other than void, it's a serious bug, and the compiler prints a warning diagnostic message. Exception classes should be publicly accessible. V723. AUTOSAR. Consider adding '[Flags]' attribute to the enum. WPF: the type registered for DependencyProperty does not correspond with the type of the property used to access it. V788. Thus, these functionsdo not result inundefined behavior. Consider replacing this function with 'std::uncaught_exceptions'. Features from should not be used. Comma may be missing. rev2023.4.21.43403. The first 'if' statement contains method return. V3055. Make sure the expression is correct. The expression is checked for compatibility with type 'A', but is cast to type 'B'. V689. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. A function that does not return a value is called a non-value returning function (or a void function ). V642. I agree. Length of function body or class declaration is more than 2000 lines. Potentially tainted data is used to create an object using deserialization. V715. Consider inspecting the expression. Probably the '!=' should be used here. MISRA. Unhandled exceptions in destructor lead to termination of runtime. MISRA. V3174. Pointer to FILE should not be dereferenced. V2579. Possible missing parentheses. There is a probability of logical error presence. Muehlig Funeral Home Obituaries,
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