V3508. But, do are you sure you want your return statement inside your loop to begin with? Non-void function must return value. check your Spam/Junk folder and click the "Not Spam" button for our message. Decreased performance. V588. Expression is enclosed by parentheses twice: ((expression)). V3118. 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. V3037. Consider checking for misprints. V6056. Suspicious bitwise operation was detected. V2601. The loop counter should not have floating-point type. An 'else' branch may apply to the previous 'if' statement. The main function calls two functions: report_square and report_ratio. Consider inspecting the expression. A pointer/reference parameter in a function should be declared as pointer/reference to const if the corresponding object was not modified. Constant expression in switch statement. MISRA. Extracting arguments from a list of function calls. It is highly probable that the semicolon ';' is missing after 'return' keyword. Possible use of left shift operator instead of comparison operator. Initial and final values of the iterator are the same. It's possible that the line was commented out improperly, thus altering the program's operation logics. Memory is allocated and released multiple times inside the loop body. V614. The compiler isn't going to go to very much trouble to detect this situation, because functions like throw_blah which are guaranteed to never return are rare, and because except in the simplest of situations, there's no way for it to reliably do so. The 'malloc' function is used to allocate memory for an array of objects that are classes containing constructors/destructors. Well occasionally send you account related emails. 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. V3025. V3160. Function receives an odd argument. MISRA. V6050. V6061. It is possible that type name was omitted: throw MyException(a, b);. Use of two opposite conditions. A function that does not return a value is called a non-value returning function (or a void function). Object was created but not used. New variable with default value is created instead of 'std::unique_lock' that locks on the mutex. V714. V5013. The expression is checked for compatibility with the type 'A', but is casted to the 'B' type. V5008. V663. Was Aristarchus the first to propose heliocentrism? V5012. V6011. Function execution could be deferred. Variable with static storage duration is declared inside the inline function with external linkage. Suspicious access to element by a constant index inside a loop. V790. V702. OWASP. V565. V1050. Thread.sleep() inside synchronized block/method may cause decreased performance. V2606. MISRA. A pattern was detected: A || (A && ). V3132. V771. Subtraction, >, >=, <, <= should be applied only to pointers that address elements of the same array. V555. AUTOSAR. Possible exception when serializing type. V5007. Conversion between pointers of different object types should not be performed. MISRA. There are identical sub-expressions to the left and to the right of the 'foo' operator. The '? Congratulations! V783. The result of an assignment expression should not be used. The report_ratio function has a void return type, so it doesn't need to explicitly return a value. Classes should always be derived from std::exception (and alike) as 'public'. The value is out of range of enum values. In this case, we can call either a non-value returning function, or we can call a value-returning function and just ignore the return value. It is possible that different variables are used inside initializer and iterator. Loop break conditions do not depend on the number of iterations. MISRA. MISRA. V2585. I recently fixed something similar in #2898 which is not yet merged. V627. V750. V616. V603. Identifiers that start with '__' or '_[A-Z]' are reserved. Stack of original exception could be lost. MISRA. This case may be unreachable. V5616. V2538. Your function should return a vector in every possible condition. MISRA. The 'Foo' function is called twice to deallocate the same resource. MISRA. Consider inspecting the expression. Perhaps, it is a typo and 'X' variable should be used instead of 'Y'. If an expression is not given on a return statement in a function declared with a non- void return type, the compiler issues a warning message. That's why, the analyzer will not issue a warning. Size of every element in X array is not equal to divisor. ConcurrentModificationException may occur. The function with the 'abort/exit/getenv/system' name should not be used. The 'operator &&', 'operator ||', 'operator ,' and the unary 'operator &' should not be overloaded. Argument is a non-constant reference. The 'swap' function may interchange a variable with itself. Comparison with 'double.NaN' is meaningless. Suspicious assignment inside the conditional expression of 'if/while/for' statement. Expressions with enum underlying type should have values corresponding to the enumerators of the enumeration. The expression contains a suspicious mix of integer and real types. MISRA. Incorrect shifting expression. Operand of sizeof() operator should not have other side effects. Probably the '!=' should be used here. The value of a composite expression should not be assigned to an object with wider essential type. V301. Flowing off the end of a non-void function with no 'return' results in undefined behavior. Passing the value into the 'Foo' method will result in an exception. Implicit type conversion from memsize to double type or vice versa. Consider checking the use of this variable. V6022. Consider assigning value to 'foo' variable instead of declaring it anew. Decreased performance. V3063. The analyzer has detected a non-void function with an execution path that does not return a value. V765. The 'default' label should be either the first or the last label of a 'switch' statement. Suspicious pointer arithmetic with 'malloc/new'. Object was created but is not used. Argument of sizeof() is a macro, which expands to a number. Generating points along line with specifying the origin of point generation in QGIS. V713. An odd sequence of assignments of this kind: A = B; B = A; V3038. V1087. Consider inspecting the 'switch' statement. V600. V2602. The conditional expressions of the 'if' statements situated alongside each other are identical. Unreachable code detected. V546. Consider inspecting the 'for' operator. V792. Bit shifting of the 32-bit value with a subsequent expansion to the 64-bit type. V3117. Function receives an odd argument. Size of array calculated by sizeof() operator was added to a pointer. Suspicious precise comparison. V755. Using this sequence lead to undefined behavior. V3076. The 'std::uncaught_exception' function is deprecated since C++17 and is removed in C++20. V2622. The true value (VARIANT_TRUE) is defined as -1. As report_square takes no parameters and returns void, we don't assign its result to a variable. Copying from potentially tainted data source. V630. Non-void function must return value. Pointer to FILE should not be dereferenced. Replace iterator++ with ++iterator. MISRA. V6092. ifnon-void function does not return a value in all control return reverseString return The operator evaluates both operands. The "" closing tag was encountered, while the "" tag was expected. A suspicious label is present inside a switch(). V002. An excessive type cast or check. V550. The 'continue' operator will terminate 'do { } while (false)' loop because the condition is always false. Cast should not remove 'const' qualifier from the type that is pointed to by a pointer or a reference. It is possible that the variable should be used instead of the string literal. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 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). Incorrect type of a loop variable. Range intersections are possible within conditional expressions. Consider inspecting the expression. It's possible that the line was commented out improperly, thus altering the program's operation logics. Value of 'char' type is added to a string pointer. To learn more, see our tips on writing great answers. AUTOSAR. This can result in an overflow. Possible XPath injection. V3127. V3187. It is suspicious that the argument of sizeof() operator is the expression. Implicit type conversion N argument of function 'foo' to 32-bit type. Analysis of 'Makefile/Utility' type projects is not supported in this tool. An array/object was declared but was not utilized. V6009. V699. 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. AUTOSAR. V507. V2543. Exception was thrown by pointer. The double result is stored in fraction, then printed. Function with a non-void return type should return a value from all exit paths. V2612. The object was created but it is not being used. Why did US v. Assange skip the court of appeal? Inspect the Nth argument. Consider inspecting the NN argument of the 'Foo' function. MISRA. The version of your suppress file is outdated. V2015. V764. V3009. MISRA. V5605. V2595. MISRA. This way, you won't miss messages from our team in the future. V6077. Dangerous widening type conversion from an array of derived-class objects to a base-class pointer. Dangerous construction is used: 'm[x] = m.size()', where 'm' is of 'T' class. V6026. V798. V560. V527. Creating an object with placement new requires a buffer of large size. Throwing from exception constructor may lead to unexpected behavior. Implicit type conversion from enum type to integer type. A write outside the bounds of this variable may occur. V1024. V2582. Possible typo inside the string literal. V642. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Variable was compared to zero before it was used as a divisor. The object is returned from inside 'using' block. MISRA. It is safer to use the 'foo' function. Using 'std::move' function's with const object disables move semantics. Not the answer you're looking for? What is an early return, and what is its behavior? Calling method or accessing property of potentially disposed object may result in exception. V686. That's because exit is marked as [[noreturn]]. Expressions with enum underlying type should have values corresponding to the enumerators of the enumeration. MISRA. Consider inspecting the expression. V3066. MIP Model with relaxed integer constraints takes longer to solve than normal model, why? V623. The value of an expression is a potentially destroyed Unity object or null. V3131. V5009. V2575. The 'x' variable is assigned to itself. Did the drapes in old theatres actually say "ASBESTOS" on them? V6064. V3035. V6098. Only values returned from fgetpos() can be used as arguments to fsetpos(). V2507. How to force Mathematica to return `NumericQ` as True when aplied to some variable in Mathematica? Potentially infinite loop. As we know pipelined function doesn't require Return, because of its working and for best programming practice we write it. The '\0xNN' characters were encountered. V5620. V806. Pointer is dereferenced on the initialization list before its check for null inside the body of a constructor function. Consequently, the function needs to have a statement that returns the object of the corresponding type. Interpreting non-statistically significant results: Do we have "no evidence" or "insufficient evidence" to reject the null? MISRA. V605. MISRA. 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.. Methods returning a value: Cannot determine active configuration for project. A return statement ends the execution of a function, and returns control to the calling function. V3012. 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. Possible incorrect initialization of variable. V3043. It is possible that a typo is present inside the expression. Just make it return, @NathanOliver One could imagine a slightly more complex example which was fully reasonable, like.
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