Class member is initialized with dangling reference. Use memsize type instead. V2612. Potentially unsafe double-checked locking. V627. The second condition is always false. Function printHi has a void return type, meaning it doesnt return a value. OWASP. The '&' or '|' operator is applied to bool type value. V2510. V3141. V1072. V2004. Potentially tainted data is used as a path. V2528. Maximum size of a vector is known at compile time. Potential Java SE API compatibility issue. In case of false, your function will not return anything and result in compilation error. V618. V6002. 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. Function is not declared. V792. Do not use real-type variables as loop counters. MISRA. V641. Bit shifting of the 32-bit value with a subsequent expansion to the 64-bit type. return reverseString return An empty container is iterated. The 'throw' keyword could be missing. Defining an absolute path to the file or directory is considered a poor style. V2555. It is possible that type name was omitted: throw MyException(a, b);. 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. V2526. Consider enabling the display of invisible characters in the code editor. MISRA. V6055. The variable is never modified. Functions should not be declared at block scope. Potentially tainted data is used in the XPath expression. Identifiers that start with '__' or '_[A-Z]' are reserved. V3504. V693. V6072. Code contains collection of similar blocks. Suspicious division. V6099. A switch-label should only appear at the top level of the compound statement forming the body of a 'switch' statement. An empty exception handler. nlohmann/json.hpp:11996:5: warning: non-void function does not return a value in all control paths [-Wreturn-type], static ReferenceType get_ref_impl(ThisType& obj) What is the Russian word for the color "teal"? The code fragment is equivalent to the following: Note that undefined behavior occurs only if the end of a non-void function is actually reached. Variable was used as a divisor before it was compared to zero. It is likely that a wrong variable is being incremented inside the 'for' operator. The expression was implicitly cast from integer type to real type. V669. V659. A switch-label should only appear at the top level of the compound statement forming the body of a 'switch' statement. return expressionopt ; The value of expression, if present, is returned to the calling function. Deprecated CLR switch was detected. Value of variable is checked after use. V625. AUTOSAR. Possible excessive expression or typo. Potential logical error. Why does Acts not mention the deaths of Peter and Paul? No locking will be performed. The operator evaluates both operands. V577. Probably the '+=' should be used here. Here is my code: why does it show compile error?? Condition of a loop is always true/false. Implicit assignment type conversion to memsize type. Perhaps, this statement should have been compared with something else. V3039. V573. V2507. V729. The 'foo' local variable has the same name as one of class members. OWASP. 1. Function execution could be deferred. Early returns can be used in value-returning functions too: First, print() is called. Youll need to comment out this line of code in order to make your code compile. MISRA. Buffer overflow is possible. V3528. Pointer to local array 'X' is stored outside the scope of this array. The alignment rules and type sizes have been changed. Congratulations! Consider inspecting the expression. Initial and final values of the iterator are the same. Bit fields should only be declared with explicitly signed or unsigned integer type. Unable to start the analysis on this file. AUTOSAR. V775. To view the purposes they believe they have legitimate interest for, or to object to this data processing use the vendor list link below. V3178. Conditional expressions of 'if' statements located next to each other are identical. V125. Boundary between numeric escape sequence and string is unclear. Probably meant: *ptr != zero. V5301. V3009. Use of 'Foo' named constant with 0 value in bitwise operation. Consider implementing event accessors explicitly or use 'sealed' keyword. Currently your code is returning the vector based on conditions. Asking for help, clarification, or responding to other answers. Stack of original exception could be lost. The analyzer has detected a non-void function with an execution path that does not return a value. Object slicing. The expression, if present, is evaluated and then converted to the type returned by the function. It is possible that the variable should be used instead of the string literal. The 'swap' function may interchange a variable with itself. V6015. Array size should be specified explicitly when array declaration uses designated initialization. The functions from time.h/ctime should not be used. Unreachable code under a 'case' label. MISRA. The '&=' or '|=' operator is redundant because the right operand is always true/false. V820. Thanks for contributing an answer to Stack Overflow! The virtual destructor is not present, although the 'Foo' class contains virtual functions. V511. Use of 'Foo' uninitialized variable. Casts between a void pointer and an arithmetic type should not be performed. It is possible that different variables are used inside initializer and iterator. Line whose first token is '#' should be a valid preprocessing directive. V2503. Consider checking the first actual argument of the 'Foo' method. Consider checking the first actual argument of the 'Foo' method. Suspicious semicolon ';' after 'if/for/while' operator. V1076. V503. This example is one program in several parts. It is possible that an incorrect variable is compared with null after type conversion using 'as' keyword. Referenced package contains vulnerability. The object was used after it was verified against null. The method does not override another method from the base class. The arguments violate the bounds of collection. Potentially tainted data is used to create query. Inline functions should be declared with the static storage class. V6042. Cast should not convert a pointer to a function to any other pointer type, including a pointer to function type. V520. V584. The operation is executed 2 or more times in succession. V773. V811. V2515. Use the RtlSecureZeroMemory() function to erase private data. ConcurrentModificationException may occur. A part of conditional expression is always true/false if it is evaluated. V5626. Consider inspecting the '? Implicitly specified enumeration constants should be unique consider specifying non-unique constants explicitly. If you haven't received our response, please do the following: check your Spam/Junk folder and click the Incorrect diagnostics are possible. Thus, the warning is a very useful one and you should consider yourself lucky that the compiler noticed the bug. Possible open redirect vulnerability. Value of variable is not modified. Values of different enum types are compared. V113. Check for missing 'throw' keyword. The value of an expression is a potentially destroyed Unity object or null. V2617. V3020. V2581. Parameter of 'CancellationToken' type is not used inside function's body. MISRA. V3043. The object was created but it is not being used. V3046. Void functions don't need a return statement A void function will automatically return to the caller at the end of the function. V2597. V1054. The 'throw' keyword could be missing. OWASP. This case may be unreachable. V5609. V3188. V2513. Why does Acts not mention the deaths of Peter and Paul? AUTOSAR. V3177. Casts between a pointer to an incomplete type and any other type shouldn't be performed. Function with a non-void return type should return a value from all exit paths. The function is deprecated in the Win64 system. MISRA. jump-statement: V504. V014. V3529. V3175. V6030. MISRA. V697. V637. V3540. V1030. V2512. Operand that is a composite expression has more narrow essential type than the other operand. V6091. V3077. Unbounded functions performing string operations should not be used. V1004. Identifiers declared in the same scope and name space should be distinct. V3072. Be advised that the size of the type 'long' varies between LLP64/LP64 data models. The 'default' label should be either the first or the last label of a 'switch' statement. V3027. V6089. An overflow of the 32-bit variable is possible inside a long cycle which utilizes a memsize-type loop counter. You signed in with another tab or window. MISRA. V5002. MISRA. Verifying that a pointer value is not NULL is not required. V2529. MISRA. Suspicious type cast: 'Type1' to ' Type2'. Length should be probably multiplied by sizeof(wchar_t). The address of an object with local scope should not be passed out of its scope. V655. MISRA. Consider inspecting the 'for' operator. The signature of method 'X' does not conform to serialization requirements. V3172. Particularly, if during the function execution an exception is thrown and is not caught in the body of the same function, there will be no undefined behavior. V2573. AUTOSAR. Automatic unboxing of a variable may cause NullPointerException. use custom JSON_THROW_USER without exceptions. Any loop should be terminated with no more than one 'break' or 'goto' statement. V6032. Potential division by zero. That's because exit is marked as [[noreturn]]. It's possible that the line was commented out improperly, thus altering the program's operation logics. If a function sometimes forgets to return a result, you will get a warning (if you have requested warnings). Lifetime of the lambda is greater than lifetime of the local variable captured by reference. V2546. Variable of the 'string_view' type references a temporary object, which will be removed after evaluation of an expression. Array is used as pointer to single object. Features from should not be used. V6035. V5605. Consider restricting the type parameter to reference types. Potential incorrect use of item 'X'. Bit shifting of the 32-bit value with a subsequent expansion to the 64-bit type. "Signpost" puzzle from Tatham's collection, QGIS automatic fill of the attribute table by expression, Generating points along line with specifying the origin of point generation in QGIS. V3068. Consider naming the object. The function located to the right of the '|' and '&' operators will be called regardless of the value of the left operand. V6024. The text was updated successfully, but these errors were encountered: Also, can you provide a minimal code sample that reproduces this issue? V2601. Buffer size is not a multiple of element size. Let's consider an example: Analysis aborted by timeout. V1019. It means that there is no default return value for your function outside of the for loop. V1028. Use filter buttons or 'Don't Check Files' settings to enable message display. Do not define an unnamed namespace in a header file. Consider checking the function for an error. V1060. ** 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. V1048. V5604. Decreased performance. AUTOSAR. AUTOSAR. V679. Not all members of a class are initialized inside the constructor. The 'zero' value is assigned to pointer. Value of 'char' type is added to a string pointer. V1029. These conditions may be true or false. Decreased performance. The 'x' variable is assigned to itself. Unsafe double-checked locking. MISRA. The 'throw' keyword could be missing. Consider using of 'if-else' construct. MISRA. V1049. The 'A' class containing IDisposable members does not itself implement IDisposable. Examine the substrings "abc" and "abcd". Probably meant: '\xNN'. MISRA. Pattern A || (A && ) was detected. Initial and final values of the iterator are the same. Exception classes should be publicly accessible. MISRA. V5624. A write outside the bounds of this variable may occur. Priority of '+' operation is higher than priority of '<<' operation. V012. Consider inspecting the expression. It is possible that this 'else' branch must apply to the previous 'if' statement. Consider using the 'size()' function. V1087. triniChillibibi 2 yr. ago This was for my print_winner function in runoff. The 'then' statement is equivalent to the 'else' statement. MISRA. V051. An unconditional 'break/continue/return/goto' within a loop. Creating an object with placement new requires a buffer of large size. V545. Two similar code fragments. The analysis results could be incomplete. Expression can be simplified: check similar operands. Suspicious use of BigDecimal class. "non-void function does not return a value in all control paths". Check your control flow logic and make sure you assign a value before every statement that causes a return. The double result is stored in fraction, then printed. AUTOSAR. Potentially tainted data might be used to execute a malicious script. V3513. AUTOSAR. OWASP. For more information, see "Behavior" in Function Statement. V595. Dangerous widening type conversion from an array of derived-class objects to a base-class pointer. V3140. Parameter 'A' is always rewritten in method body before being used. Assigning potentially negative or large value as timeout of HTTP session can lead to excessive session expiration time. V788. MISRA. Undefined behavior. Silent suppression of exceptions can hide the presence of bugs in source code during testing. Consider inspecting the expression. The SUCCEEDED or FAILED macro should be used instead. Check lines: N1, N2. Likewise, report_ratio returns void, so we don't save its return value, either. The parentheses around the return expression in square are evaluated as part of the expression, and aren't required by the return statement. MISRA. Use a plain return statement to make your intent clear. V1082. V1073. The first call to printHi() is called in a context that does not require a value. 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. V766. Inappropriate attempt to append a null character to a string. Expression is equivalent to moving one unique pointer to another. AUTOSAR. V6013. Calling overrideable class member from constructor is dangerous. There is a probability of logical error presence. V1071. The variable in the loop exit condition does not change its value between iterations. Not all the members of type are serialized inside 'GetObjectData' method. Why does function get compile without RETURN statement Possibly 'Total*' value was intended instead. Range intersections are possible within conditional expressions. Why don't we use the 7805 for car phone chargers? MISRA. An exception handling block does not contain any code. Type implementing IEquatable interface does not override 'GetHashCode' method. V3544. Check for an error or bad coding style. Variables are initialized through the call to the same function. Unchecked tainted data is used in expression. V2560. Further, testing by changing the function return type to int and changing the returns to 0 in the then code, 1 in the else if code, and 2 outside that shows assembly code that only returns 0 or 1, proving GCC was not just collapsing the third path into undefined behavior; it outright eliminates it because it is not possible. V3112. The expression contains a comma. V563. V532. Recurrent serialization will use cached object state from first serialization. Throwing from exception constructor may lead to unexpected behavior. V1068. Otherwise, the integer division operator would be used, and the fractional part would be lost. OWASP. V3089. V3095. V1027. It is highly probable that the semicolon ';' is missing after 'return' keyword. A compatible declaration should be visible when an object or function with external linkage is defined. V3536. Possible exception: type marked by [Serializable] contains non-serializable members not marked by [NonSerialized]. It is suspicious that a char or string literal is added to a pointer. MISRA. Explicit conversion from 32-bit integer type to pointer type. V670. Consider inspecting the first parameter of 'getline' function. V2523. V2572. Consider inspecting this expression. V2516. Array indexing should be the only form of pointer arithmetic and it should be applied only to objects defined as an array type. An item with the same key has already been added. The 'X' variable is used for this loop and outer loops. Thread.sleep() inside synchronized block/method may cause decreased performance. Expression resulting from the macro expansion should be surrounded by parentheses. V614. Pointer was used after the memory was released. V2594. Virtual table pointer will be damaged. Which ability is most related to insanity: Wisdom, Charisma, Constitution, or Intelligence? V3054. This leads to undefined behavior. Probably meant: 'new type[n]'. Value is subtracted from unsigned variable. V3532. The value of uninitialized variable should not be used. V008. A component of TimeSpan is used, which does not represent full time interval. It is possible that creating a new variable is unnecessary. V661. Consider re-generating your suppress file to continue updating it. V2556. Floating-point values should not be tested for equality or inequality. V611. MISRA. Comparing value type variables with 'ReferenceEquals' is incorrect because compared values will be boxed. V6077. Consider inspecting the expression. V566. He also rips off an arm to use as a sword. Some warnings could have been disabled. Please attach your files here. Consider assigning event to a local variable before invoking it. Overflow check is incorrect. Expression is enclosed by parentheses twice: ((expression)). for example: void throw_blah () { throw "blah"; } int foo () { throw_blah (); } I am pretty curious about this as this is directly related to one of my other issue . Consider casting operands, not the result. check your Spam/Junk folder and click the "Not Spam" button for our message. MISRA. An exception handling block does not contain any code. Call of the 'Foo' function will lead to buffer underflow. Potential insecure deserialization vulnerability. V567. Update: You need to make your function return a vector in every condition as suggested in comments. Inspect the Nth argument. Possibly, it was intended to be escaped. MISRA. Iterators are passed as arguments to 'Foo' function. A boy can regenerate, so demons eat him for years. ", "? V2511. V1074. V719. Is a return statement mandatory for C++ functions that do not return void? MISRA. All integer constants of unsigned type should have 'u' or 'U' suffix. V767. The true value (VARIANT_TRUE) is defined as -1. The 'a' variable was used after it was assigned through null-conditional operator. Function receives suspicious argument. It can result in an overflow. V6059. Passing objects of incompatible types to the method of collection. Do not concatenate string literals with different prefixes. Consider inspecting this expression. How can I control PNP and NPN transistors together from one pin? Comparing objects of incompatible types. MISRA. V3182. Member operator[] of 'foo' class has a 32-bit type argument. Shift by N bits is inconsistent with the size of type. Consider using the extended version of the 'foo' function here. The report_square function has a void return type, so it doesn't have an expression in its return statement. V3033. . : .'. A pattern was detected: A || (A && ). Two or more case-branches perform the same actions. The expression is incorrect or can be simplified. V632. Unexpected function overloading behavior. Unsafe invocation of event, NullReferenceException is possible. Giving short names to global variables is considered to be bad practice. V2501. The 'if' 'else if' construct should be terminated with an 'else' statement. Passing the value into the 'Foo' method will result in an exception. The standard signal handling functions should not be used. Are there any canonical examples of the Prime Directive being broken that aren't shown on screen? Potentially tainted data is used in the URL. V657. Possible incorrect order of arguments passed to function. V3114. It is possible that the 'i' variable should be incremented instead of the 'n' variable. You are assuming that loop will always run, but, what if an empty string ends up getting submitted? Suspicious literal: '/r'. Consider specifying execution policy explicitly. V600. The use of 'if (A) {} else if (A) {}' pattern was detected. V6004. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. V2530. It is possible that there is an error. V3171. What happens to the returned value, if one is specified, depends on the implementation. Consider inspecting the expression. MISRA. Memory allocation and deallocation functions should not be used. Two or more case-branches perform the same actions. Let's consider an example. V696. What "benchmarks" means in "what are benchmarks for?". Recurring check. All I want the function to do is add one to the value of the each character inputted into the string array and shift it on the ASCII table and then return the coded message. V3092. V1024. Consider casting operands, not the result.
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warning non void function does not return a value
warning non void function does not return a value
warning non void function does not return a value