V746. V688. Possible NullReferenceException. A switch-label should only appear at the top level of the compound statement forming the body of a 'switch' statement. It is possible that the 'i' variable should be incremented instead of the 'n' variable. It is suspicious that variable is initialized through itself. Consider using the KK constant. Compound assignment expression 'X += X + N' is suspicious. V6064. V1063. Use direct analyzer integration or compiler monitoring instead. WPF: the names of the property registered for DependencyProperty, and of the property used to access it, do not correspond with each other. An item with the same key has already been added. Consider inspecting the '? Consider using 'i + 1' instead. 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. Function with a non-void return type should return a value from all exit paths. Value of variable is checked after use. V504. V3053. The 'X' counter is not used inside a nested loop. OWASP. It's odd that this method always returns one and the same value of NN. It is possible that this 'else' branch must apply to the previous 'if' statement. Reference was invalidated because of destruction of the temporary object returned by the function. MISRA. V2612. Decreased performance. B is never printed because the statement never executes. The result will always be zero. Why Oracle let function (basic/nopipelined) without RETURN compile, and throws error in execution. AUTOSAR. 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. V6028. Suspicious sequence of assignments: A = B; B = A;. Assigning the value C to the X variable looks suspicious. That's why, the analyzer will not issue a warning. Consider re-generating your suppress file to continue updating it. It is possible that a call to 'Start' method is missing. Variable of the 'string_view' type references a temporary object, which will be removed after evaluation of an expression. Continue with Recommended Cookies. If you called exit instead of throw_blah from foo, for instance, it wouldn't issue the error. The switch statement does not cover all values of the enum. External object or function should be declared once in one and only one file. V3551. Consider assigning the seed to a value not known at compile-time. The long long result is stored in squared, then printed. A return statement can return a value to the calling function. In such a case, the comparison operation may behave unexpectedly. V3154. Perhaps a short-circuit operator should be used instead. V2606. AUTOSAR. V524. V106. Negative value is implicitly converted to unsigned integer type in arithmetic expression. Function 'Foo' writes/reads 'N' bytes. V799. It is suspicious that the result of the statement is a part of the condition. Possible exception when deserializing type. Variable with static storage duration is declared inside the inline function with external linkage. Consider checking the function for an error. V739. However, this statement is trying to send the return value of printHi to std::cout to be printed. It is possible that there is an error. Classes should always be derived from std::exception (and alike) as 'public'. V6017. Learn more about Stack Overflow the company, and our products. Calling a virtual (overridden) event may lead to unpredictable behavior. V5007. Consider naming the object. Decreased performance. Replace iterator++ with ++iterator. There is a probability of logical error presence. The "" closing tag was encountered, while the "" tag was expected. Line whose first token is '#' should be a valid preprocessing directive. This means that the second 'if' statement is senseless. Consider reviewing 'X'. V663. V6054. V1047. The 'zero' value is assigned to pointer. Consider inspecting it. The second function call to function printHi() wont even compile. V6009. MISRA. This is unexpected behavior. MISRA. Explicit conversion from 32-bit integer type to pointer type. Features from should not be used. A method can return default null value. Check items X, Y, Z, in lines N1, N2, N3, V526. Annotation that does not have 'RUNTIME' retention policy will not be accessible through Reflection API. Use of a pointer to FILE when the associated stream has already been closed. Size of the 'time_t' type is not 64 bits. TYPE X[][] is not equivalent to TYPE **X. V1088. If function ends without return (or throw), then the behaviour of the program will be undefined. control reaches end of non-void functions -wreturn-type. How do I stop the Flickering on Mode 13h? Possible Zip Slip vulnerability. 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.. V764. V3031. V506. Passing objects of incompatible types to the method of collection. OWASP. Consider a case where the vector is empty. Parameter 'A' is always rewritten in method body before being used. :' operator, regardless of its conditional expression, always returns one and the same value. V828. V3126. The code's operational logic does not correspond with its formatting. The 'sizeof' expression returns the size of the container type, not the number of elements. The result of '&' operator is always '0'. Throwing from exception constructor may lead to unexpected behavior. It may happen that flow is never reaching that part of the code but it is important to write for the compiler. V1038. C-style and functional notation casts should not be performed. Exception was thrown by pointer. V710. V6003. V596. The 'while' operator has empty body. "Not Spam" button for our message. Function call may lead to buffer overflow. Casting expression to 'X' type before implicitly casting it to other type may be excessive or incorrect. V5612. Possible incorrect order of arguments passed to method. the first printHi() in the above example), were calling a function for its behavior, not its return value. This program prints the letters A and B on separate lines. Consider checking the N format items of the 'Foo' function. V3089. Values of different enum types are compared. AUTOSAR. AUTOSAR. V3516. Buffer size is not a multiple of element size. V2567. Code contains collection of similar blocks. Memory for 'getline' function should be allocated only by 'malloc' or 'realloc' functions. MISRA. V661. It's better to use '= default;' syntax instead of empty body. V3135. The other reason is that void more clearly conveys that the function is supposed to not return a value, rather than return null specifically. Probably it is a mistake. V3132. What differentiates living as mere roommates from living in a marriage-like relationship? Possibly meant: 'A -= B'. V692. V6029. The right operand is greater than or equal to the number of bits in the left operand. As a good engineering practice, always specify a return type for your functions. If you have a C++ program missing a return statement from a function that is supposed to return a value, g++ will compile it happily with no errors (or even a warning, unless -Wreturn-type or -Wall is used). Uninitialized class member is used when initializing the base class. V602. V5011. Use of the throw (a, b); pattern. Constant expression in switch statement. An identifier with array type passed as a function argument should not decay to a pointer. V793. rev2023.4.21.43403. V714. V810. V2536. V1082. Classes should not be compared by their name. Loop break conditions do not depend on the number of iterations. MISRA. This return value is also printed. Potentially tainted data is used in the URL. V1049. Examine the substrings "abc" and "abcd". This causes unspecified or undefined behavior. Exception classes should be publicly accessible. Iterators are passed as arguments to 'Foo' function. V005. Pointer to local array 'X' is stored outside the scope of this array. It's possible that 'else' keyword is missing. Recurring check. It is possible that type name was omitted: throw MyException(a, b);. Class defines a custom new or delete operator. Bit fields should only be declared with explicitly signed or unsigned integer type. A variable of the memsize type is read from a stream. V2591. V3051. Expression containing increment (++) or decrement (--) should not have other side effects. Consider replacing standard container with a different one. V3060. V815. AUTOSAR. V789. V620. Check for typos and consider using the 'default:' operator instead. It is possible that a wrong variable is incremented inside the 'for' operator. V3138. V3177. int sometimes ( int x) { if (x > 0) { return 2*x; } } MISRA. V3181. V513. The expression is always false. V3553. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Thanks for contributing an answer to Stack Overflow! Does this function have explicit return values on all control paths? V1032. There is no point to declare constant reference to a number. This is the same thing that happens at the end of the function anyway. Notice that BSTR strings store their length before start of the text. V1031. The expression is excessive or contains a logical error. V6049. The output of the example looks like this: More info about Internet Explorer and Microsoft Edge. These conditions may be true or false. Use of 'Foo' uninitialized variable. Suspicious use of BigDecimal class. The object was created but it is not being used. It can possibly be replaced by the call to the 'find' function. The return value of the function should probably be compared with std::string::npos. So, the compiler generates an error. V2594. V3141. 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. Decreased performance. OWASP. Consider inspecting the 'Foo' function call. If you wish to call constructor, use 'this->Foo::Foo(.)'. operator works in a different way than it was expected. V6031. Passing the value into the 'Foo' method will result in an exception. V3084. density matrix. V567. When we call a function by itself (e.g. V637. The '#pragma warning(push/pop)' should be used instead. Is the code I've written here adequate to do that? V1073. 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. V128. Potential logical error. Decreased performance. It's possible that an assigned variable should be checked in the next condition. Abnormality within similar comparisons. Consider replacing the expression 'AA' with 'BB'. There are identical sub-expressions to the left and to the right of the 'foo' operator.
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