Code contains invisible characters that may alter its logic. When you include the return (0) statement, you are saying that the function returns a value of 0. Consider inspecting the expression. It is possible that the variable should be used instead of the string literal. Subtraction, >, >=, <, <= should be applied only to pointers that address elements of the same array. Without re-registering for finalization, destructor will not be called a second time on resurrected object. Consider utilizing 64-bit compiler if possible. Parameter of 'std::stop_token' type is not used inside function's body. Consider checking the first actual argument of the 'Foo' method. Potential XXE vulnerability. great work. A boy can regenerate, so demons eat him for years. 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. V2516. V1090. Code formatting implies that the statement should not be a part of the 'then' branch that belongs to the preceding 'if' statement. Comma may be missing. Length of function body or class declaration is more than 2000 lines. Unsafe invocation of event, NullReferenceException is possible. Function 'Foo' writes/reads 'N' bytes. Looking at the assembly GCC 11.2 generates for this with -O3, we see it has in fact recognized that the union of all cases in the if and else if covers all possibilities: It has generated only two code paths, not three. V3534. Modified value of the operand is not used after the increment/decrement operation. V302. Potential Java SE API compatibility issue. Macro should not be defined with the same name as a keyword. From what I can gather online, this means that I am not returning a value from my function? MISRA. Perhaps, this is a typo and 'X' variable should be used instead of 'Y'. TYPE X[][] is not equivalent to TYPE **X. Size of the 'time_t' type is not 64 bits. The 'foo' local variable has the same name as one of class members. Consider inspecting signed and unsigned function arguments. File cannot be processed. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. Consider casting operands, not the result. Asking for help, clarification, or responding to other answers. Memory is allocated and released multiple times inside the loop body. V604. i'm not sure if this is intentional behavior. OWASP. The outer type contains static field/property with identical name. MISRA. Consider implementing event accessors explicitly or use 'sealed' keyword. V608. V6080. Subtraction, >, >=, <, <= should be applied only to pointers that address elements of the same array. V1038. OWASP. "Not Spam" button for our message. V1079. V2579. OWASP. V2518. Not all IDisposable members are properly disposed. V527. Explicit conversion from 'float/double' type to signed integer type. Consider inspecting the 'for' operator. V518. The report_ratio function has a void return type, so it doesn't need to explicitly return a value. The 'Foo' function receives the pointer and its size as arguments. V567. Suspicious literal: '/r'. The 'A' class contains 'Dispose' method. Extending 'std' or 'posix' namespace may result in undefined behavior. Type implementing IEquatable interface does not override 'GetHashCode' method. Calling the 'foo' virtual function in the constructor/destructor may lead to unexpected result at runtime. The 'value' parameter is rewritten inside a property setter, and is not used after that. Flowing off the end of thesefunctions is equivalent to a'return 0;'. V735. The '? Consider inspecting the correctness of handling the N argument in the 'Foo' function. It was deemed useful to report this warning as it typically results from inadvertent program design rather than intentional coverage of all cases with a redundant test. The conditional expressions of the 'if' statements situated alongside each other are identical. Suspicious semicolon ';' after 'if/for/while' operator. The result will always be zero. MISRA. V1084. 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. The expression is checked for compatibility with type 'A', but is cast to type 'B'. He also rips off an arm to use as a sword. We discuss the debate over early returns in lesson 7.10 -- Break and continue. Decreased performance. The 'x' variable is assigned values twice successively. Classes should not be compared by their name. V1058. Perhaps, it is a typo and 'X' variable should be used instead of 'Y'. V3553. But, do are you sure you want your return statement inside your loop to begin with? The consent submitted will only be used for data processing originating from this website. Explicit conversion from 32-bit integer type to memsize type. Possible LDAP injection. V3069. MISRA. Congratulations! V3071. Argument of incorrect type is passed to the 'Enum.HasFlag' method. Early returns can be used in value-returning functions too: First, print() is called. Suspicious access to element by a constant index inside a loop. V583. The 'bar2.h' header will be excluded from compilation. MISRA. The 'strlen' function was called multiple times inside the body of a loop. It is suspicious that the assignment operator takes an object by a non-constant reference and returns this object. This may lead to undefined behavior. V3514. What if I write return statement in constructor? Variables are initialized through the call to the same function. Potential insecure deserialization vulnerability. The 'malloc' function allocates suspicious amount of memory calculated by 'strlen(expr)'. V2013. V702. V803. V2604. V709. V3172. V790. V5302. The standard signal handling functions should not be used. V833. The 'X' counter is not used inside a nested loop. Reference was invalidated because of destruction of the temporary object returned by the function. An excessive type cast or check. Expressions with enum underlying type should have values corresponding to the enumerators of the enumeration. V751. V535. V122. V6003. V755. Member 'x' should point to string terminated by two 0 characters. V2553. AUTOSAR. There are two 'if' statements with identical conditional expressions. As a good engineering practice, always specify a return type for your functions. V6038. MISRA. Octal constants should not be used. V659. AUTOSAR. Consider passing the 'Foo' argument as a pointer/reference to const. V2522. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, FWIW, compiling the example code on godbolt.org with, @EricPostpischil but compiler does not know if, Yes, it does know. In such a case, the comparison operation may behave unexpectedly. V731. MISRA. V6060. The 'default' label should be either the first or the last label of a 'switch' statement. V2575. No handlers will be unsubscribed, as a separate delegate instance is created for each anonymous function declaration. V3166. V2523. V1030. Object slicing. V3109. Compiler may optimize out this loop or make it infinite. V762. V1071. We will email you at. V3151. He also rips off an arm to use as a sword. Expression used in condition should have essential Boolean type. Cyclomatic complexity: NN. Pointer to an object of the class is cast to unrelated class. It's possible that an assigned variable should be checked in the next condition. For example, running this piece of code is working fine: While, on the other hand, if we try to use/call some function to complete the throw, it is facing the well known error/warning of: I am pretty curious about this as this is directly related to one of my other issue, where just like here, throw is working fine but using macro for throw is facing the same error. V719. V3018. V6043. It is complaining because within the first for loop, if block returns v but else if block does not return anything. V3059. V6088. MISRA. V770. V3123. Ignored InterruptedException could lead to delayed thread shutdown. Suspicious expression 'A[B < C]'. Suspicious precise comparison. V786. V560. Return value is not always used. V3161. Size of array calculated by sizeof() operator was added to a pointer. V701. One pair of parentheses is unnecessary or typo is present. V6052. V3017. It is more efficient to use an initialization list rather than an assignment operator. Unreachable code was detected. Pointer was used after the memory was released. V1065. Bounds should not contain size of a buffer, but a number of characters it can hold. Property accessors use different backing fields. MISRA. Does a password policy with a restriction of repeated characters increase security? V3187. Unity Engine. Potentially tainted data is used to create query. V613. Check lines: N1, N2. Getting "non-void function does not return a value in all control paths", New blog post from our CEO Prashanth: Community is the future of AI, Improving the copy in the close modal and post notices - 2023 edition, Embedded hyperlinks in a thesis or research paper. Conversions between pointers to objects and integer types should not be performed. V3133. V828. Consider inspecting the expression. The size of the bit mask is less than the size of the first operand. The DllMain function throws an exception. V203. Consider enabling the display of invisible characters in the code editor. nlohmann/json.hpp:20877:5: warning: non-void function does not return a value in all control paths [-Wreturn-type]. MISRA. V2585. MIP Model with relaxed integer constraints takes longer to solve than normal model, why? Possible error in program's logic. EOF should not be compared with a value of the 'char' type. The '<' operator should probably be replaced with '<<'. V6066. Suspicious explicit type casting. Check for missing 'throw' keyword. The 'first' argument of 'Foo' function is equal to the 'second' argument. Connect and share knowledge within a single location that is structured and easy to search. InvalidClassException may occur during deserialization. Avoid using 'this == 0' comparison. The 'if (ptr != NULL)' check can be removed. Comma operator ',' in array index expression. Consider inspecting the 'for' operator. Check lines: N1, N2. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Class initialization cycle is present. Possible NullReferenceException. V502. P.S. Defining absolute path to file or directory is considered a poor coding style. V655. Expressions with enum underlying type should have values corresponding to the enumerators of the enumeration. The stream is checked for EOF before reading from it but is not checked after reading. Suspicious division. Usage of potentially invalid handle. V3035. V3122. V630. V594. A Function procedure has at least one possible path through its code that does not return a value. Identical expression to the left and to the right of compound assignment. V1061. V672. Comparison with 'double.NaN' is meaningless. MISRA. Use of jump statements in 'finally' block can lead to the loss of unhandled exceptions. V807. The long long result is stored in squared, then printed. 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. There is no point to declare constant reference to a number. What is the Russian word for the color "teal"? V5626. V2519. V2591. MISRA. V1008. It is possible that an error is present. Consider using '||' and '&&' instead. The alignment rules and type sizes have been changed. Is a return statement mandatory for C++ functions that do not return void? The condition (ptr - const_value) is only false if the value of a pointer equals a magic constant. This leads to undefined behavior. V3053. V2571. The ratio function returns the ratio of its two int arguments as a floating-point double value. The constant NN is being utilized. MISRA. V3117. V1075. Strings were concatenated but not used. MISRA. The 'X' variable was not initialized. Size of an array is not specified. V3518. Object should not be assigned or copied to an overlapping object. V3521. Bit shifting of the 32-bit value with a subsequent expansion to the 64-bit type. AUTOSAR. V3525. Implicitly specified enumeration constants should be unique consider specifying non-unique constants explicitly. V577. Controlling expressions should not be invariant. V6100. V3168. V2618. Two opposite conditions were encountered. V2506. Consider checking the first actual argument of the 'Foo' method. Function execution could be deferred. V830. V823. MISRA. The expression of the 'char' type is passed as an argument of the 'A' type whereas similar overload with the string parameter exists. The analysis results could be incomplete. This way, you won't miss messages from our team in the future. rev2023.4.21.43403. V3523. V639. A smart pointer may not destroy an object correctly. V114. All memory or resources allocated dynamically should be explicitly released. V650. The .exe and .i files are not supported. For more information, see Return type. Object was created but not used. The loop counter should not have floating-point type. V3049. V646. Possible realloc() leak: when realloc() fails to allocate memory, original pointer is lost. Expression of essential type 'foo' should not be explicitly cast to essential type 'bar'. V3158. Consider inspecting the program's logic. The report_ratio function calls ratio with parameter values of 1 and INT_MAX. V6097. V3177. OWASP. Possibly 'Total*' value was intended instead. V804. Copying from potentially tainted data source. How do I stop the Flickering on Mode 13h? V561. GCC options: warning on non-void functions without a return statement, Type No return, in function returning non-void, no return in function using switch statement, No return statement warning in function returning non-void. operator instead. The 'goto' statement shouldn't jump to a label declared earlier. Consider using the extended version of the 'foo' function here. Calling an overridden method in parent-class constructor may lead to use of uninitialized data. AUTOSAR. This case may be unreachable. V2538. It is better to redefine the N function argument as a reference. V3550. It is possible that an assigned variable should be checked in the next condition. Use _beginthreadex/_endthreadex functions instead of CreateThread/ExitThread functions. V605. V657. WPF: writing and reading are performed on a different Dependency Properties. Class defines a custom new or delete operator. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, If you are never going to return something, why do you declare the function as doing so? V1095. Suspicious type cast: 'Type1' to ' Type2'. Backward Incompatible Changes Like the names reserved by the Scalar Type Declarations and Reserve More Types in PHP 7 RFCs, the void return type does not become a reserved word proper, but is instead . Nonsensical comparison: pointer < 0. A function should not call itself either directly or indirectly. Suspicious access to element by a constant index inside a loop. jump-statement: V3536. The compiler has been asked to treat warnings as errors. 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. In the above example, when print() executes, it will first print A. V1053. Unexpected function overloading behavior. MISRA. MISRA. V6030. Why does Acts not mention the deaths of Peter and Paul? Class that contains pointers, constructor and destructor is copied by the automatically generated operator= or copy constructor. The value of an expression is a potentially destroyed Unity object or null. Casting pointer to a type of a larger size is an implementation-defined behavior. If a function sometimes forgets to return a result, you will get a warning (if you have requested warnings). It is possible that a typo is present inside the string literal. If expression is omitted, the return value of the function is undefined. WPF: A class containing registered property does not correspond with a type that is passed as the ownerType.type. Only the first member of enumerator list should be explicitly initialized, unless all members are explicitly initialized. V2551. The '? AUTOSAR. V588. Uninitialized variables are used when initializing the 'A' variable. V3512. Passing 'BSTR ' to the 'SysAllocString' function may lead to incorrect object creation. AUTOSAR. malloc() function accepts a dangerous expression in the capacity of an argument. V1040. The function with the 'atof/atoi/atol/atoll' name should not be used. V774. The return value of the function should probably be compared with std::string::npos. How to force Mathematica to return `NumericQ` as True when aplied to some variable in Mathematica? V723. How do I count the number of sentences in C using ". The object was created but it is not being used. Check lines: N1, N2. Literal suffixes should not contain lowercase characters. If total energies differ across different software, how do I decide which software to use? Two identical text blocks were detected. Consider inspecting usage of 'Y' counter. Consider inspecting this expression. MISRA. Does the 500-table limit still apply to the latest version of Cassandra? Every switch-clause should be terminated by an unconditional 'break' or 'throw' statement. V3128. Infinite loop is possible. The values used in expressions should have appropriate essential types. MISRA. There should be no implicit integral-floating conversion. V3012. V707. Potentially tainted data is used to create OS command. V6054. An item with the same key has already been added. V2545. WPF: the names of the property registered for DependencyProperty, and of the property used to access it, do not correspond with each other. Generating points along line with specifying the origin of point generation in QGIS. An exception should be caught by reference rather than by value. N argument has memsize type. V685. V6031. V3154. V696. Two or more case-branches perform the same actions. Consider inspecting the 'foo' function. In a prior lesson (2.1 -- Introduction to functions), we indicated that the syntax for a function definition looks like this: Although we showed examples of functions that had return-type void, we did not discuss what this meant. V6017. V004. MISRA. Argument of abs() function is minimal negative value. Remember that 'a == b == c' is not equal to 'a == b && b == c'. V220. String is printed into itself. If you haven't received our response, please do the following: Unsafe invocation of event, NullReferenceException is possible. Recurring check. A new object is created, while a reference to an object is expected. V3037. V3050. Consider using a comparison with defined precision: Math.abs(A - B) < Epsilon or Math.abs(A - B) > Epsilon. V1036. You may or may not use the return . V6068. A memory leak will occur in case of an exception. String literal contains potential interpolated expression. V2594. MISRA. Suspicious assignment inside the condition expression of 'if/while/for' operator. We must also say what type of enter the function lives returning, e.g. V676. V3555. Do not use real-type variables as loop counters. The field will have default value on different threads. Therefore, printHi is given a void return type. Program contains an unused label and function call: 'CC:AA()'. Postfix increment/decrement is senseless because this variable is overwritten. MISRA. A pointer/reference parameter in a function should be declared as pointer/reference to const if the corresponding object was not modified. Consider replacing the expression 'AA' with 'BB'. Hi, been using 2.0.1 so far over the proposed workaround (void function instead of non-void function). Note that throw_blah is the weird bit, not foo. Constant expression evaluation should not result in an unsigned integer wrap-around. For more information on hiding warnings or treating warnings as errors, see Configuring Warnings in Visual Basic. AUTOSAR. The text was updated successfully, but these errors were encountered: Also, can you provide a minimal code sample that reproduces this issue? V668. The resource was acquired using 'X' function but was released using incompatible 'Y' function. Derived class object was copied to the base class object. Check for an error or bad coding style. V636. Consider refactoring the 'Foo' function. V6053. V736. NullReferenceException is possible. Character escape is used in multicharacter literal. V793. Variable was used as a divisor before it was compared to zero. OWASP. Bit shifting of the 32-bit value with a subsequent expansion to the 64-bit type. Shift by N bits is inconsistent with the size of type. Variable should be declared in a scope that minimizes its visibility. Consider inspecting the 'for' operator. V1024. It's probably an error or un-optimized code. V612. Typedef names should be unique across all name spaces. V621. Asking for help, clarification, or responding to other answers. V3551. AUTOSAR. V521. V3182. MISRA. Expression under 'throw' is a potential null, which can lead to NullReferenceException. Do not use old versions of SSL/TLS protocols as it may cause security issues. Possible excessive expression or typo. V725. Call of the 'Foo' function will lead to buffer overflow. It is possible that the 'i' variable should be incremented instead of the 'n' variable. The 'continue' operator will terminate 'do { } while (false)' loop because the condition is always false. There are identical sub-expressions to the left and to the right of the 'foo' operator. V3167. Consider using the M_NN constant from . Consider checking the function for an error. Suspicious subexpression in a sequence of similar comparisons. V717. MISRA. It makes code less human error prone. V6056. V6032. Value from the uninitialized optional is used. Potential logical error is present. Unions should not be used. MISRA. V2014. V673. V5603. OWASP. MISRA. Consider checking for typos. Check the shift operator. Unhandled exceptions in destructor lead to termination of runtime. Explicit conversion from memsize type to 32-bit integer type. I recently fixed something similar in #2898 which is not yet merged. V732. V2530. Dereferencing the result of null-conditional access operator can lead to NullReferenceException. It is inefficient to identify an empty string by using 'strlen(str) > 0' construct. Unconditional 'break/continue/return/goto' within a loop. V5614. OWASP. Consider inspecting the loop expression. MISRA. Connect and share knowledge within a single location that is structured and easy to search. Consider using the declaration from system header files instead. Appending an element and checking for key uniqueness is performed on two different variables. Decreased performance. V640. Memory allocation and deallocation methods are incompatible. The functions from time.h/ctime should not be used. Logical literal belongs to second operator with a higher priority. Calling overrideable class member from constructor is dangerous. Currently your code is returning the vector based on conditions. Consider inspecting the NN argument of the 'Foo' function. V3114. V3070. AUTOSAR. The function with the 'abort/exit/getenv/system' name should not be used. V1010. V733. V3510. This means that the second 'if' statement is senseless. MISRA. Suspicious return of an always empty collection. MISRA. Use of outdated cryptographic algorithm is not recommended. Declaration should contain no more than two levels of pointer nesting. V3188. AUTOSAR. V3171. This may break the program's logic. V5006. V2533. This expression can be simplified. An exception handling block does not contain any code. V686. Incorrect format. Consider replacing standard container with a different one. V568. V2621. V2570. For example: In the above program, the value to be printed needs to be provided on the right-side of the std::cout <<. Consider inspecting the return statement. Exception classes should be publicly accessible. Probably meant: *ptr != zero. V2566. V726. The variable is assigned but is not used by the end of the function. Identifiers declared in the same scope and name space should be distinct. The object was created but it is not being used. OWASP. V626. Remember that members are initialized in the order of their declarations inside a class. Then the return statement executes, and control returns back to the caller (main). The 'if/if-else/for/while/foreach' statement and code block after it are not related. Some warnings could have been disabled. Can you still use Commanders Strike if the only attack available to forego is an attack against an ally? (i have tried it with just else instead of else if and get same error). A return statement can return a value to the calling function. Consider using 'i + 1' instead. V6048. V207. Suspicious assignment inside the conditional expression of 'if/while/for' statement. A variable of the memsize type is read from a stream. Destructor of the object will be invoked a second time after leaving the object's scope. V3093. V6047. Why does an overridden function in the derived class hide other overloads of the base class? Uninitialized class member is used to initialize another member. AUTOSAR. Classes that define 'equals' method must also define 'hashCode' method. MISRA. The value is assigned to the 'x' variable but is not used. V799. External object or function should be declared once in one and only one file. The variable was used to initialize itself. V3060. OWASP. V3529. Suspicious sequence of types castings: pointer -> memsize -> 32-bit integer. V2017. V1083. V525. You can return a value from a Function procedure in any of the following ways: Include the value in a Return Statement. OWASP. Incorrect diagnostics are possible. V123. A function with a non-void return type must return an answer no matter what its parameters are. V2537. The '&=' or '|=' operator is redundant because the right operand is always true/false. V3004. Identifiers that start with '__' or '_[A-Z]' are reserved. It only takes a minute to sign up. MISRA. This variable is passed by reference to the 'Foo' function in which its value will be used. V666. Appending new suppressed messages to it is not possible. There is nothing we can do in this situation - there are no default values to return in case of exceptions. V2005. The function argument corresponding to a parameter declared to have an array type should have an appropriate number of elements. Compound assignment expression 'X += X + N' is suspicious. V1087. V622. V782. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Analysis of 'Makefile/Utility' type projects is not supported in this tool. V3011. Unsafe usage of the 'bool' and integer types together in the operation '&='. Use direct analyzer integration or compiler monitoring instead. Consider using the KK constant. V3137. The 'x' variable is assigned values twice successively.