Possible overflow. Does the 500-table limit still apply to the latest version of Cassandra? V3504. Asking for help, clarification, or responding to other answers. Suspicious division. Consider checking for typos. Functions should not have unused parameters. V823. The resource was acquired using 'X' function but was released using incompatible 'Y' function. Inspect the program's logic. String literal contains potential interpolated expression. The second condition is always false. Function marked as 'noreturn' may return control. You are assuming that loop will always run, but, what if an empty string ends up getting submitted? Examine the substrings "abc" and "abcd". return reverseString return V6078. Consider checking for misprints. MISRA. V790. Consider inspecting the function call. V3030. A component of TimeSpan is used, which does not represent full time interval. Exceptions raised inside noexcept functions must be wrapped in a try..catch block. V012. V749. It is not recommended to return null or throw exceptions from 'toString' / 'clone' methods. V5003. MISRA. It is possible that 'i < X.size()' should be used instead of 'X.size()'. rev2023.4.21.43403. V1086. It is possible that ',' comma is missing at the end of the string. Make this option control the pedwarns that don't have any option. What is scrcpy OTG mode and how does it work? Operand of sizeof() operator should not have other side effects. The expression is incorrect or it can be simplified. 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. Value of the essential character type should be used appropriately in the addition/subtraction operations. Recurring check. Content Discovery initiative April 13 update: Related questions using a Review our technical responses for the 2023 Developer Survey. V1023. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. A write outside the bounds of this variable may occur. Suspicious subexpression in a sequence of similar comparisons. V3037. Use of outdated cryptographic algorithm is not recommended. Stack of original exception could be lost. OWASP. AUTOSAR. Functions should not be declared at block scope. However, this statement is trying to send the return value of printHi to std::cout to be printed. OWASP. Unchecked tainted data is used in expression. V742. Member operator[] of object 'foo' is declared with 32-bit type argument, but is called with memsize type argument. V3058. Postfix increment/decrement is senseless because this variable is overwritten. Possible LDAP injection. V2594. It's possible that the line was commented out improperly, thus altering the program's operation logics. The use of 'if (A) {} else if (A) {}' pattern was detected. V555. ps: thanks for the awesome library. V3529. There are two 'if' statements with identical conditional expressions. AUTOSAR. Bit fields should only be declared with explicitly signed or unsigned integer type. The original exception object was swallowed. V811. Consider inspecting the function. MISRA. Integer constant is converted to pointer. V520. It is possible that macro expansion resulted in incorrect evaluation order. V3171. Suspicious declaration. to your account, const typename object_t::key_type& key() const OWASP. Memory for 'getline' function should be allocated only by 'malloc' or 'realloc' functions. Consider replacing the call to the 'at()' method with the 'operator[]'. V3528. Consider replacing this function with 'std::uncaught_exceptions'. I will edit. V3088. hi, at least for bool keyPressed(ofKeyEventArgs& args) it should return false as the default otherwise the event propagation will stop.. in glTypeForImageType(int imageType)I would simply add return 0; at the end of the function. V1050. Consider checking for typos. Suspicious use of BigDecimal class. V3548. V1006. The compiler may issue a warning diagnostic message about unreachable code if it finds any statements placed after the return statement. In this case, we have the 'main' function. Incorrect index type: 'foo[not a memsize-type]'. AUTOSAR. Consider assigning event to a local variable before invoking it. Decreased performance. Probably meant: '\xNN'. The 'x' variable is assigned to itself. It's possible that the loop will be executed incorrectly or won't be executed at all. The argument should probably be rendered as a constant pointer/reference. ", "? Code contains collection of similar blocks. Consider pre-allocating it by calling reserve(N). It is advised to pass arguments to std::unary_function/std::binary_function template as references. Single-bit bit fields should not be declared as signed type. 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. Pointer was used before its check for nullptr. The 'throw' keyword could be missing. Suspicious subexpression in a sequence of similar comparisons. Consider inspecting the expression. V6104. Make sure the expression is correct. V5610. Why does flowing off the end of a non-void function without returning a value not produce a compiler error? V1057. I am writing a function to validate if the strlen of a string = 26 or not and returning a boolean value however I get an error message stating "error: non-void function does not return a value in all control paths [-Werror,-Wreturn-type]" despite there being no way for a value not to be returned. operator works in a different way than it was expected. Unhandled exceptions in destructor lead to termination of runtime. The passing of data to or from this function may be affected. V6096. V3128. What were the poems other than those by Donne in the Melford Hall manuscript? V626. Consider replacing 'const T' with 'const .. &T' / 'const .. *T'. V662. Single-line comments should not end with a continuation token. If you haven't received our response, please do the following: Pointer is cast to a more strictly aligned pointer type. Potentially infinite loop. The second condition is always false. It is possible that a backslash should be used instead: '\r'. Making statements based on opinion; back them up with references or personal experience. Non-void function must return value. Suspicious invocation of Thread.run(). Constant expression in switch statement. Suspicious semicolon ';' after 'if/for/while' operator. Unsafe usage of the 'bool' and integer types together in the operation '&='. MISRA. V6010. control reaches end of non-void functions -wreturn-type. The 'if' 'else if' construct should be terminated with an 'else' statement. V6038. Then, enable it by default, but also make it be enabled by Wpedantic and Wreturn-type. Potentially tainted data is used in a search filter. Consider using an explicit type cast to avoid overflow or loss of a fractional part. Is it safe to publish research papers in cooperation with Russian academics? Generating points along line with specifying the origin of point generation in QGIS. MISRA. The identifier 'main' should not be used for a function other than the global function 'main'. Parameter of 'CancellationToken' type is not used inside function's body. Variable length array types are not allowed. V563. Consider inspecting the expression. The global namespace should only contain 'main', namespace declarations and 'extern "C"' declarations. AUTOSAR. The first statement in print() prints A. Excessive type casting: string -> char * -> string. V1007. This leads to undefined behavior. The 'continue' operator will terminate 'do { } while (false)' loop because the condition is always false. Value of 'A' type is assigned to a pointer of 'B' type. V665. V2014. V818. V573. It's possible that the line was commented out improperly, thus altering the program's operation logics. Its representation is implementation-defined. The 'if (ptr != NULL)' check can be removed. Extracting arguments from a list of function calls. . Function '' doesn't return a value on all code paths. V3140. Conversion between pointers of different object types should not be performed. The 'X' variable is used for this loop and outer loops. The reference was used before it was verified against null. Typedef names should be unique across all name spaces. It is possible that a typo is present inside the expression. V3097. It is possible that a wrong variable is compared inside the 'for' operator. 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. V3043. Potential XEE vulnerability. To tell the compiler that a function does not return a value, a return type of void is used. The object is returned from inside 'using' block. V745. V798. This causes implementation-defined behavior. V6011. Analysis of 'Makefile/Utility' type projects is not supported in this tool. V2520. AUTOSAR. MISRA. The 'throw' keyword could be missing. V3511. The '#pragma warning(push/pop)' should be used instead. The variable 'X' is being used for this loop and for the outer loop. Collection is modified while iteration is in progress. V1058. 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. Annotation that does not have 'RUNTIME' retention policy will not be accessible through Reflection API. V3139. Explicit conversion from 'float/double' type to unsigned integer type. The '//' and '/*' character sequences should not appear within comments. V806. V3515. Probably it is a mistake. A return statement can return a value to the calling function. For example: In the above example, the printHi function has a useful behavior (it prints Hi) but it doesnt need to return anything back to the caller. V516. Methods returning a value: The value range of the variable: [A, B]. The variable is assigned the same value on several loop iterations. There are two 'if' statements with identical conditional expressions. MISRA. It may be an error. It is more effective to use the prefix form of ++it. OWASP. Consider checking the N format items of the 'Foo' function. Possible typo inside the string literal. V590. V009. Absolute value of the left operand is less than the right operand. Consider using of 'if-else' construct. Two similar code fragments were found. The report_ratio function calls ratio with parameter values of 1 and INT_MAX. V596. V739. It's probably an error or un-optimized code. Find centralized, trusted content and collaborate around the technologies you use most. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The standard input/output functions should not be used. Argument of sizeof() is a macro, which expands to a number. V753. Decreased performance. My advice would be to create a new option Wreturn-pedantic. error: non-void function does not return a value in all control paths [-Werror,-Wreturn-type]} bool is_full() { if() { return 1; } else if() { return 0; } else if() { return 1; } } 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 : V1092. V797. V111. The value should be non-negative. V2587. Consider inspecting the 'for' operator. A pointer/reference parameter in a function should be declared as pointer/reference to const if the corresponding object was not modified. Syntax: return[expression]; There are various ways to use return statements. V1037. Potentially tainted data is used as a path. The identifier 'main' should not be used for a function other than the global function 'main'. Pointer is dereferenced on the initialization list before its check for null inside the body of a constructor function. The passed line may contain format specification. Check for typos. V2556. Probably meant: '\xNN'. Implicit type conversion from memsize to double type or vice versa. 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. Handling of two different exception types is identical. V1017. The 'switch' statement should have 'default' as the last label. Suspicious access to element by a constant index inside a loop. Implicit conversion of the type of 'new' operator's argument to size_t type. V3054. V3099. But below is not the case so why does it get compile, is there something else expected by Oracle. Expression is equivalent to moving one unique pointer to another. Uppercase (lowercase) string is compared with a different lowercase (uppercase) string. Consider inspecting the expression. What happens to the returned value, if one is specified, depends on the implementation. Consider replacing the use of 'std::optional::value()' with either the '*' or '->' operator. V3012. This may lead to undefined behavior. The 'Foo' function receives the pointer and its size as arguments. Execution of report_ratio "falls off the bottom" and returns no value to the caller. Lowercase 'L' at the end of a long literal can be mistaken for '1'. V2613. An exception should be caught by reference rather than by value. V2605. V3146. V804. The return statement may or may not return anything for a void function, but for a non-void function, a return value must be returned. OWASP. V3078. V3076. Consider verifying the compatibility of 32 and 64 bit versions of the application in the context of a stored data. Suspicious simultaneous use of bitwise and logical operators. The stream is checked for EOF before reading from it but is not checked after reading. V3509. The square function returns the square of its argument, in a wider type to prevent an arithmetic error. V221. A compatible declaration should be visible when an object or function with external linkage is defined. V6015. It is possible that creating a new variable is unnecessary. V3184. Creating an object with placement new requires a buffer of large size. V2518. Cast should not remove 'volatile' qualifier from the type that is pointed to by a pointer or a reference. MISRA. V2530. V6048. V693. V6064. Constructor contains potentially uninitialized members. V2011. The long long result is stored in squared, then printed. An abnormality within similar comparisons. Suspicious type conversion: HRESULT -> BOOL (BOOL -> HRESULT). Priority of the '&&' operator is higher than that of the '||' operator. V631. Nonsensical comparison of two different functions' addresses. V610. So if you want error for specific warning, say -Wreturn-type, just type return-type without -W part as: $ g++ -Werror=return-type source.cpp In general you should always use -Wall option which includes most common warnings this includes missing return statement also. Unsafe double-checked locking. V737. Conditional expressions of 'if' statements located next to each other are identical. Potential XXE vulnerability. Member operator[] of 'foo' class has a 32-bit type argument. V2572. V703. Allocation of memory by the pattern "(X*)malloc(sizeof(Y))" where the sizes of X and Y types are not equal. Consider inspecting the expression. The 'throw' keyword could be missing. AUTOSAR. Usage of non memsize type for pointer arithmetic. Arrays should not be partially initialized. Perhaps, 'ThenBy' should be used instead. V6002. V2599. AUTOSAR. Decreased performance. Possible meaningless check for null, as memory was allocated using 'new' operator. MISRA. Memory allocation and deallocation methods are incompatible. Consider using: static_cast/const_cast/reinterpret_cast. MISRA. Function always returns the same value of NN. V3025. Explicit conversion from 'float/double' type to signed integer type. V831. All analyzer messages were filtered out or marked as false positive. Such a pointer will become invalid. Bool type value is compared with value of N. Consider inspecting the expression. V3172. V740. V3173. Asking for help, clarification, or responding to other answers. V722. The loop counter should not have floating-point type. V3075. Signed value is converted to an unsigned one with subsequent expansion to a larger type in ternary operator. V568. An empty container is iterated. Suspicious access to element by a constant index inside a loop. Consider reviewing 'X'. No locking will be performed. Potentially unsafe double-checked locking. A terminal null is present inside a string. V782. The default is -Wunused-result. The initial value of the index in the nested loop equals 'i'. Decreased performance. AUTOSAR. AUTOSAR. V3523. V591. V681. The function with the 'atof/atoi/atol/atoll' name should not be used. This can cause concurrency issues. A function should not call itself either directly or indirectly. Part of conditional expression is always true/false. This may lead to undefined behavior. no return statement in function returning non-void while using C++, How a top-ranked engineering school reimagined CS curriculum (Ep. check your Spam/Junk folder and click the "Not Spam" button for our message. External object or function should be declared once in one and only one file. V623. V1022. Possible NoSQL injection. Comparison with 'double.NaN' is meaningless. The '+' operation is executed. V5614. Consequently, putting an empty return statement at the end of a void function is redundant: Do not put a return statement at the end of a non-value returning function. V690. MISRA. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Appending an element and checking for key uniqueness is performed on two different variables. Consider checking the N format items of the 'Foo' function. Variable is used after it is moved. V2582. The loop counter should not have floating-point type. The '? V104. Several shared_ptr objects are initialized by the same pointer. Attempt to free memory containing the 'int A[10]' array by using the 'free(A)' function. 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. Variable should be declared in a scope that minimizes its visibility. V561. Consider checking the first actual argument of the 'Foo' method. Consider making it implement 'IDisposable' interface. V3153. More info about Internet Explorer and Microsoft Edge, Compile Page, Project Designer (Visual Basic). OWASP. The variable is incremented in the loop. V3539. V3134. :' operator, regardless of its conditional expression, always returns one and the same value. The switch statement does not cover all values of the enum. V2513. 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. V3126. The operator evaluates both operands. Program contains an unused label and function call: 'CC:AA()'. Microsoft-specific: The Microsoft C implementation returns the expression value to the process that invoked the program, such as cmd.exe. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. V3083. Odd semicolon ';' after 'if/for/while' operator. 'else' keyword is probably missing. Two similar code fragments. Condition of a loop is always true/false. Non-zero value can become 'FALSE'. Unsafe invocation of event, NullReferenceException is possible. The 'operator &&', 'operator ||', 'operator ,' and the unary 'operator &' should not be overloaded. V6047. V2606. V5623. V2600. It is suspicious that a char or string literal is added to a pointer. V1081. V608. V1047. Value of variable is checked after use. V509. Every 'switch' statement should contain non-empty switch-clauses. V676. This will cause the loss of the higher bits. Potentially tainted data is used in the path toextractthe file. Expressions that use comma operator ',' are dangerous. V733. V6018. Verifying that a pointer value is not NULL is not required. It is possible that an incorrect variable is compared with null after type conversion using 'dynamic_cast'. malloc() function accepts a dangerous expression in the capacity of an argument. V1051. Compound assignment expression 'X += X + N' is suspicious. The report_square function has a void return type, so it doesn't have an expression in its return statement. V658. Extracting arguments from a list of function calls. The variable of char type is compared with pointer to string. 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. Consider inspecting the 'switch' statement. Analysis aborted by timeout. V710. V011. V512. V553. A function that does not return a value is called a non-value returning function (or a void function ). Unary minus operator should not be applied to an expression of the unsigned type. The compiler has been asked to warn when a function has a control path that doesn't return a value (although not mentioned in the message, throwing a value and possibly calling a non-returning function may also be considered acceptable). Possible Zip Slip vulnerability. V3047. This expression can be simplified. By clicking Sign up for GitHub, you agree to our terms of service and It only takes a minute to sign up. Operands of the logical '&&' or the '||' operators, the '!' Consider adding the 'cin.fail()' function call to the conditional expression. V5617. An object is used as an argument to its own method. V1062. V1035. The 'Foo(Foo)' class member is initialized with itself. Flowing off the end of thesefunctions is equivalent to a'return 0;'. Many programmers use parentheses to enclose the expression argument of the return statement. One is enough. Possible realloc() leak: when realloc() fails to allocate memory, original pointer is lost. V202. V6021. Possible open redirect vulnerability. Consider inspecting the expression. Consider inspecting the 'for' operator. Potential insecure deserialization vulnerability. Notice that BSTR strings store their length before start of the text. Potentially tainted data is used to create an object using deserialization. Object slicing. Unable to start the analysis on this file. This condition was already verified in previous line. Since the function doesnt return a value, this is fine. OWASP. Call of 'std::is_constant_evaluated' function always returns the same value. How to Make a Black glass pass light through it? V3530. @Sneftel Good point. Two or more case-branches perform the same actions. The field will have default value on different threads. Perhaps a short-circuit operator should be used instead. Function call may lead to buffer overflow. The value of an expression is a potentially destroyed Unity object or null. Consider a case where the vector is empty. Connect and share knowledge within a single location that is structured and easy to search. MISRA. Check lines: N1, N2. V3103. If you cant find an answer to your question, fill in the form below and our developers will contact you. Use volatile variable(s) or synchronization primitives to avoid this. Array indexing should be the only form of pointer arithmetic and it should be applied only to objects defined as an array type. V1054. - Nate Eldredge. If you wish to call constructor, use 'this->Foo::Foo(.)'. V3014. Consider using the extended version of the 'foo' function here. use custom JSON_THROW_USER without exceptions. It is highly probable that the semicolon ';' is missing after 'return' keyword. In such a case, the comparison operation can potentially behave unexpectedly. This program prints the letters A and B on separate lines. V3183. Please attach your files here. AUTOSAR. Dangerous construction is used: 'm[x] = m.size()', where 'm' is of 'T' class. Consider inspecting the '? Parameter is always rewritten in function body before being used. There is nothing we can do in this situation - there are no default values to return in case of exceptions. (i have tried it with just else instead of else if and get same error). Consider using the 'size()' function. V736. V6071. Function 'Foo' writes/reads 'N' bytes. V1063. V672. Potential resurrection of 'this' object instance from destructor. Suspicious expression inside parentheses. V731. V5011. Consider utilizing 64-bit compiler if possible. BSTR string becomes invalid. If certain compiler flags are passed, this type of error or warning might get suppressed entirely, which will lead to run-time faults if the given function gets called in the program. It is not recommended to return null or throw exceptions from 'ToString()' method. Then main returns a value of 0 (typically used to report success) to end the program. V2519. The 'operator &&', 'operator ||', 'operator ,' and the unary 'operator &' should not be overloaded. V3071. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. V674. V5613. Storing credentials inside source code can lead to security issues. shoulder holster for 38 special revolver, vagos mc news,
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warning non void function does not return a value 2023