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Value of variable is not modified. Did the Golden Gate Bridge 'flatten' under the weight of 300,000 people in 1987? V592. We will email you at. It is possible literal was intended to belong to '??' Consider casting operands, not the result. See documentation for details. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Potential logical error. Make sure the expression is correct. V6083. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Cannot determine active configuration for project. V6065. Use memsize-type here. Probably the '-=' should be used here. It's probably an error or un-optimized code. It is possible that a wrong variable is incremented inside the 'for' operator. Explicit conversion from memsize type to 32-bit integer type. Class that contains pointers, constructor and destructor is copied by the automatically generated operator= or copy constructor. Any label should be declared in the same block as 'goto' statement or in any block enclosing it. Consider assigning event to a local variable before invoking it. V654. Possible overflow. V752. V3065. The standard signal handling functions should not be used. The VARIANT_BOOL type is used incorrectly. The analyzer is unable to determine the position where this argument is modified. V3518. V1097. The 'Foo' function should not be called from 'DllMain' function. All integer constants of unsigned type should have 'U' suffix. If you wish to call constructor, use 'this->Foo::Foo(.)'. V3553. OWASP. The expression, if present, is evaluated and then converted to the type returned by the function. V589. Destructor of the object will be invoked a second time after leaving the object's scope. MISRA. Literal suffixes should not contain lowercase characters. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. V696. Both operands of the '??' Functions should not be declared at block scope. V3538. Character escape is used in multicharacter literal. It is suspicious that value 'X' is assigned to the variable 'Y' of HRESULT type. Extending 'std' or 'posix' namespace may result in undefined behavior. This file is marked with copyleft license, which requires you to open the derived source code. Then the return statement executes, and control returns back to the caller (main). Implementation of 'compareTo' overloads the method from a base class. V3067. There are two 'if' statements with identical conditional expressions. Potentially tainted data is processed by regular expression that contains an unsafe pattern. Parameter of 'CancellationToken' type is not used inside function's body. V807. Perhaps, this statement should have been compared with something else. AUTOSAR. V730. The switch statement does not cover all values of the enum. V1076. V6030. The object was used after it was verified against null. V1064. Consider using '||' and '&&' instead. V3512. C compiling Error: non-void function does not return a value in all control paths - CS50. Consider checking for typos. V6085. in your code compiler does not know if the key will not be changed in the call to strlen as you pass a pointer (side effects). V3079. "non-void function does not return a value in all control paths". The reason for the error/warning message is because a void function, by definition, does not return a value. Appending an element and checking for key uniqueness is performed on two different variables. However, in modern programming they are more accepted, particularly when they can be used to make a function simpler, or are used to abort a function early due to some error condition. V3097. Pattern A || (A && ) was detected. An excessive check can be simplified. The expression, if present, is evaluated and then converted to the type returned by the function. InvalidClassException may occur during deserialization. This way, you won't miss messages from our team in the future. V3137. V101. The second condition is always false. The 'X' variable was not initialized. V3174. Was Aristarchus the first to propose heliocentrism? How do I stop the Flickering on Mode 13h? Comparing objects of incompatible types. Consider assigning value to 'foo' variable instead of declaring it anew. Assign the value to the Function procedure name and then perform an Exit Function statement. V3073. Loop may execute incorrectly or may not execute at all. The Ctor(SerializationInfo, StreamingContext) constructor is missing. Consider inspecting this expression. V663. V646. The operator '||' operator is surrounded by opposite expressions 'x' and '!x'. Consider synchronizing the field on all usages. The '<' operator should probably be replaced with '<<'. Structures with members of real type are compared byte-wise. V2547. V739. The expression contains a suspicious mix of integer and real types. V6101. return expressionopt ; The value of expression, if present, is returned to the calling function. It is not recommended to return null or throw exceptions from 'ToString()' method. V110. Documentation - Arm Developer Check lines: N1, N2. The square function returns the square of its argument, in a wider type to prevent an arithmetic error. Expression's value is copied at the variable declaration. Potentially negative value is used as the size of an array. Do not define an unnamed namespace in a header file. OWASP. [Serializable] attribute is missing. V754. V3014. However, C doesn't require the parentheses. Result of this expression will be implicitly cast to 'Type'. Empty exception handler. Logical literal belongs to second operator with a higher priority. V3007. WPF: the type registered for DependencyProperty does not correspond with the type of the property used to access it. 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. Consequently, the compiler will flag this as an error. Memory allocation and deallocation functions should not be used. Recurring sequence of explicit type casts. The 'GetObjectData' implementation in unsealed type is not virtual, incorrect serialization of derived type is possible. Consider inspecting usage of 'Y' counter. Is it safe to publish research papers in cooperation with Russian academics? V643. The address of an object with local scope should not be passed out of its scope. V2613. Consider making it implement 'IDisposable' interface. The object of non-passive (non-PDS) type cannot be used with the function. AUTOSAR. V5620. Why does flowing off the end of a non-void function without returning a value not produce a compiler error? The memory areas must not overlap. V6092. V1024. MISRA. Currently your code is returning the vector based on conditions. Identifiers that start with '__' or '_[A-Z]' are reserved. The 'A' class contains 'Dispose' method. V6002. Not all the members of type are serialized inside 'GetObjectData' method. Make this option control the pedwarns that don't have any option. Awaiting on expression with potential null value can lead to throwing of 'NullReferenceException'. Casting potential 'null' value to a value type can lead to NullReferenceException. V5001. Waiting on condition variable without predicate. AUTOSAR. Pointer to FILE should not be dereferenced. V3147. V3017. Expression of sizeof(T)*N kind is summed up with pointer to T type. It only takes a minute to sign up. Consider inspecting this expression. Loop break conditions do not depend on the number of iterations. When a return statement contains an expression in functions that have a void return type, the compiler generates a warning, and the expression isn't evaluated. Variable is of enum type. V671. V6056. The function with the 'abort/exit/getenv/system' name should not be used. V726. Consider using the declaration from system header files instead. V677. V2566. V740. V3154. No objects are passed to the 'std::scoped_lock' constructor. V2579. Could a subterranean river or aquifer generate enough continuous momentum to power a waterwheel for the purpose of producing electricity? V2531. V3093. How do I count the number of sentences in C using ". Potentially tainted data is used as a path. This presents the compiler with a contradicting declaration and return. MISRA. Classes that define 'equals' method must also define 'hashCode' method. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. MISRA. It is suspicious that a char or string literal is added to a pointer. V3187. V2516. V5604. V1068. A function with a non-void return type must return an answer no matter what its parameters are. That's because exit is marked as [[noreturn]]. The resulting value may be inaccurate. Potentially tainted data is used in the XPath expression. The 'switch' statement should have 'default' as the last label. First 'case' operator may be missing. ** By clicking this button you agree to our, * By clicking this button you agree to our, Free PVS-Studio license for Microsoft MVP specialists, To get the licence for your open-source project, please fill out this form. V3513. V114. The 'HasFlag' method always returns 'true' because the value '0' is passed as its argument. Consider inspecting the condition. Consider reviewing 'X'. Number of iterations in loop equals size of a pointer. V3119. Consider checking the Nth actual argument of the 'Foo' function. On 32-bit/64-bit platform, structure size can be reduced from N to K bytes by rearranging the fields according to their sizes in decreasing order. V6042. MISRA. OWASP. An identifier declared in an inner scope should not hide an identifier in an outer scope. V3525. V2619. Use filter buttons or 'Don't Check Files' settings to enable message display. V686. AUTOSAR. This may lead to ODR violation. It is likely that a wrong variable is being compared inside the 'for' operator. The text was updated successfully, but these errors were encountered: Also, can you provide a minimal code sample that reproduces this issue? When we call a function by itself (e.g. Intermodular analysis may be incomplete, as it is not run on all source files. the platforms: Continuous use of the analyzer in software development, Deploying the analyzer in cloud Continuous Integration services, Additional configuration and resolving issues. V548. V720. Dangerous call of 'Foo' function. Possible exception: type marked by [Serializable] contains non-serializable members not marked by [NonSerialized]. V1072. Dangerous cast of 'this' to 'void*' type in the 'Base' class, as it is followed by a subsequent cast to 'Class' type. ", "!"? V3060. It's possible that the loop will be executed incorrectly or won't be executed at all. MISRA. V3012. V6057. warning: non-void function does not return a value Naimur Rahman 44 subscribers Subscribe 1 Share 316 views 6 months ago warning: non-void function does not return a value Show more Show more. V558. V633. V3081. We know it knows for two reasons. The standard signal handling functions should not be used. A Function procedure has at least one possible path through its code that does not return a value. This way, you won't miss messages from our team in the future. : **non void function does not return a value in all control paths: **. Why does function get compile without RETURN statement V002. V5303. V532. V5002. The 'delete A, B' expression only destroys the 'A' object. Implicit type conversion N argument of function 'foo' to memsize type. This leads to undefined behavior. The object was created but it is not being used. Perhaps a short-circuit operator should be used instead. Such a function results in undefined behavior. V2014. Check if program logic handles it correctly. AUTOSAR. MISRA. Variables are initialized through the call to the same function. EXP12-C. Do not ignore values returned by functions Perhaps this is a mistake. All memory or resources allocated dynamically should be explicitly released. V3160. V3511. V3162. Not all members of a class are initialized inside the constructor. Here is a full example. V5603. Probably it is a mistake. control reaches end of non-void functions -wreturn-type. i'm not sure if this is intentional behavior. How to force Mathematica to return `NumericQ` as True when aplied to some variable in Mathematica? Conditional expression of 'if' statement is incorrect for the HRESULT type value 'Foo'. (i have tried it with just else instead of else if and get same error). V653. Please check projects and solution configurations. V651. V550. Storing credentials inside source code can lead to security issues. V673. Pointer is cast to a more strictly aligned pointer type. Exception was thrown by pointer. Why does Acts not mention the deaths of Peter and Paul? V775. Perhaps, this is a typo and 'X' variable should be used instead of 'Y'. V664. Do not use old versions of SSL/TLS protocols as it may cause security issues. MISRA. Consider naming the object. Consider verifying the compatibility of 32 and 64 bit versions of the application in the context of a stored data. V3002. The global namespace should only contain 'main', namespace declarations and 'extern "C"' declarations. It is odd that the body of 'Foo_1' function is fully equivalent to the body of 'Foo_2' function. Already have an account? V638. Two or more case-branches perform the same actions. The SUCCEEDED or FAILED macro should be used instead. V3139. The value is out of range of enum values. Constant value is represented by an octal form. V2551. What differentiates living as mere roommates from living in a marriage-like relationship? Possible missing parentheses. The values used in expressions should have appropriate essential types. V2578. V3043. V6018. Explicit conversion from 'float/double' type to signed integer type. Possibly an equality comparison was intended. Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey, Non-void function does not return a value. V3532. V1039. V2519. A function should not call itself either directly or indirectly. The 'x' variable is assigned values twice successively. MISRA. Consider inspecting the expression. Is the code I've written here adequate to do that? Consider creating a 'T' type object. By default, this message is a warning. c - error: non-void function does not return a value in all control V742. V1080. Possible incorrect order of arguments passed to function.