warning non void function does not return a value

personification vs animation | warning non void function does not return a value

warning non void function does not return a value

Consider inspecting the loop expression. V5615. More than N bits are required to store the value, but the expression evaluates to the T type which can only hold K bits. The report_ratio function has a void return type, so it doesn't need to explicitly return a value. Use of two opposite conditions. MISRA. Three potential reasons for issue the warning (elevated to an error) in spite of this come to mind: Due to the way the compiler is constructed, warnings are generally reported early, and suppressing this warning based on later analysis would be difficult. MISRA. V501. V3120. 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. Learn more about Stack Overflow the company, and our products. WPF: writing and reading are performed on a different Dependency Properties. V3076. We and our partners use data for Personalised ads and content, ad and content measurement, audience insights and product development. Already have an account? Comparison with 'double.NaN' is meaningless. Operation is executed 3 or more times in a row. V643. AUTOSAR. V696. V2567. The return value of the function should probably be compared with std::string::npos. It is suspicious that it is used as a variable of a Boolean-type. The resulting value is meaningless and should not be used. It is not recommended to return null or throw exceptions from 'ToString()' method. The '&' or '|' operator is applied to bool type value. V201. It's possible that the line was commented out improperly, thus altering the program's operation logics. Several shared_ptr objects are initialized by the same pointer. V2621. Implicitly specified enumeration constants should be unique consider specifying non-unique constants explicitly. A variable of the memsize type is read from a stream. Object slicing. V3075. Remember that 'a == b == c' is not equal to 'a == b && b == c'. Return value of 'wcslen' function is not multiplied by 'sizeof(wchar_t)'. Overflow check is incorrect. OWASP. We will email you at. Consider inspecting the 'T foo = foo = x;' expression. V3067. The function expects the file to be opened in one mode, but it was opened in different mode. Empirical analysis. V1006. V529. Variable is assigned but not used by the end of the function. Loop may execute incorrectly or may not execute at all. What were the poems other than those by Donne in the Melford Hall manuscript? An enumeration was declared with 'Flags' attribute, but does not set any initializers to override default values. V3140. However, this statement is trying to send the return value of printHi to std::cout to be printed. V6077. Consider inspecting the expression. V011. V2558. V3021. Function result is saved inside the 'byte' type variable. Possible Zip Slip vulnerability. Exception classes should be publicly accessible. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Consider inspecting the 'for' operator. V206. V125. Pointer is compared with 'zero' value. V1050. Does the 500-table limit still apply to the latest version of Cassandra? Expression used in condition should have essential Boolean type. V598. The compiler has been asked to treat warnings as errors. MISRA. V758. To compile the example, create a source code file named C_return_statement.c. 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) V821. (This const / volatile distinction is not important.) V3004. Decreased performance. Potentially unsafe double-checked locking. no return statement in function returning non-void while using C++ V829. V3034. Subtraction, >, >=, <, <= should be applied only to pointers that address elements of the same array. V2539. V6050. AUTOSAR. Two 'if' statements with identical conditional expressions. nlohmann/json.hpp:20017:5: warning: non-void function does not return a value in all control paths [-Wreturn-type], reference operator[](T* key) 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. V1010. It is better to redefine the N function argument as a reference. Octal constants should not be used. V6005. The default is -Wunused-result. String is printed into itself. MISRA. Replacing a 32-bit loop counter with 64-bit introduces crazy performance deviations with _mm_popcnt_u64 on Intel CPUs. Unsafe synchronization on an object. V5001. Potential incorrect use of item 'X'. The analysis results could be incomplete. The expression, if present, is evaluated and then converted to the type returned by the function. Use of 'Foo' named constant with 0 value in bitwise operation. MISRA. The size of the bit mask is less than the size of the first operand. operator should have 'bool' type. Value of 'char' type is added to a string pointer. When you include the return (0) statement, you are saying that the function returns a value of 0. Value from the uninitialized optional is used. The 'bar2.h' header will be excluded from compilation. AUTOSAR. Not all IDisposable members are properly disposed. V5608. It is possible that this 'else' branch must apply to the previous 'if' statement. V799. V3041. V6103. Size of array calculated by sizeof() operator was added to a pointer. V697. Consider inspecting the expression. It is possible that different variables are used inside initializer and iterator. :' operator has a lower priority than the 'foo' operator. Consider restricting the type parameter to reference types. V627. The variable 'X' is being used for this loop and for the outer loop. : **non void function does not return a value in all control paths: **. Lifetime of the heap-allocated variable is limited to the current function's scope. MISRA. MISRA. V3551. V103. Dangerous explicit type pointer conversion. It is possible that a call to 'Start' method is missing. V110. V3167. Comparing value type variables with 'ReferenceEquals' is incorrect because compared values will be boxed. Unsigned right shift assignment of negative 'byte' / 'short' value. V584. AUTOSAR. V2540. The function located to the right of the '|' and '&' operators will be called regardless of the value of the left operand. Some types of expressions require values. V3540. Consider inspecting the expression. Consider using parentheses in the expression. V1029. A boy can regenerate, so demons eat him for years. Consider allocating it on the stack instead. Consider inspecting the 'for' operator. V727. V3176. It is possible that a typo is present inside the expression. AUTOSAR. The 'X' variable was not initialized. V630. V3520. 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). V6079. V1030. V784. MISRA. Parameter is not used inside function's body. V3552. V107. Thanks for helping to make the site better for everyone. For more information, see "Behavior" in Function Statement. Consider inspecting the 'Foo' function call. Attempt to free memory containing the 'int A[10]' array by using the 'free(A)' function. V3513. AUTOSAR. V813. The object was created but it is not being used. Appending new suppressed messages to it is not possible. V2530. V101. Bool type value is compared with value of N. Consider inspecting the expression. Two identical text blocks were detected. Perhaps, 'ThenBy' should be used instead. V2566. The behavior is undefined for arithmetic or comparisons with pointers that do not point to members of the same array. V1028. 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. Odd semicolon ';' after 'if/for/while' operator. V2575. Explicit conversion from 'float/double' type to signed integer type. V735. Memory is allocated and released multiple times inside the loop body. At the end of printHi, control returns to main and the program proceeds. Silent suppression of exceptions can hide the presence of bugs in source code during testing. The '#pragma warning(push/pop)' should be used instead. V126. So, the solution is to apply the warn_unused_result attribute on the function. V3143. The 'then' statement is equivalent to the 'else' statement. V111. V2548. std::cout), a value must be provided. V647. Then the return statement is executed, returning the value of 5 back to the caller. Appending an element and checking for key uniqueness is performed on two different variables. Consider inspecting the loop expression. V3160. Conversions between pointers to objects and integer types should not be performed. To tell the compiler that a function does not return a value, a return type of void is used. The ratio function returns the ratio of its two int arguments as a floating-point double value. V6024. V1086. V3504. OWASP. V728. Check lines: N1, N2. V3121. Terminal null is present inside a string. V2564. V2554. V015. Check lines: N1, N2. Suspicious assignment inside the conditional expression of 'if/while/dowhile' statement. V3519. Possible NullReferenceException. It is possible that macro expansion resulted in incorrect evaluation order. This causes implementation-defined behavior. V013. Make this option control the pedwarns that don't have any option. AUTOSAR. V2538. Suspicious declaration. This is your promo code! V5603. V6013. :' operator uses constants from different enums. V6048. Expression containing increment (++) or decrement (--) should not have other side effects. Suspicious type cast: 'Type1' to ' Type2'. V2503. A resource is returned from try-with-resources statement. Dangerous construction is used: 'm[x] = m.size()', where 'm' is of 'T' class. :' operator, regardless of its conditional expression, always returns one and the same value. V807. V1071. V3079. The 'SuspendThread' function is usually used when developing a debugger. Cast should not remove 'const' / 'volatile' qualification from the type that is pointed to by a pointer or a reference. V2559. A switch-label should only appear at the top level of the compound statement forming the body of a 'switch' statement. V639. Size of every element in X array is not equal to divisor. Consider using '||' and '&&' instead. Pointer is used both as an array and as a pointer to single object. V1046. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. V744. Consider replacing the use of 'std::optional::value()' with either the '*' or '->' operator. int sometimes ( int x) { if (x > 0) { return 2*x; } } V127. V3031. A value-returning function should include a return statement, containing an expression. MISRA. V2613. WPF: several Dependency Properties are registered with a same name within the owner type. Why does flowing off the end of a non-void function without returning a value not produce a compiler error? Making statements based on opinion; back them up with references or personal experience. In this case, the return value of the called function is undefined. V1042. It's possible that an assigned variable should be checked in the next condition. Constant expression in switch statement. Using this sequence lead to undefined behavior. The 'throw' operator does not have any arguments and is not located within the 'catch' block. V3531. Calling the 'foo' virtual function in the constructor/destructor may lead to unexpected result at runtime. Calling a virtual (overridden) event may lead to unpredictable behavior. V565. AUTOSAR. V3147. It is more effective to use the prefix form of ++it. V3107. A switch-label should only appear at the top level of the compound statement forming the body of a 'switch' statement. V6049. Use volatile variable(s) or synchronization primitives to avoid this. Consider inspecting the function call. Both operands of the '??' All analyzer messages were filtered out or marked as false positive. V3117. V1032. V6058. Possible typo in the spelling of a pre-defined macro name. V3150. For more information on hiding warnings or treating warnings as errors, see Configuring Warnings in Visual Basic. V681. V2592. The pointer is cast to an integer type of a larger size. V688. But, do are you sure you want your return statement inside your loop to begin with? Explicit conversion from 'void *' to 'int *'. V113. V2505. Argument of the '|' bitwise operation always contains non-zero value. Use of '\0xNN' characters. triniChillibibi 2 yr. ago This was for my print_winner function in runoff. Function with a non-void return type should return a value from all exit paths. NullReferenceException is possible. Expression resulting from the macro expansion should be surrounded by parentheses. The analyzer is unable to determine the position where this argument is modified. It is more efficient to search for 'X' character rather than a string. As report_square takes no parameters and returns void, we don't assign its result to a variable. MISRA. Probably meant: '(*pointer)++'. Make sure the expression is correct. What is scrcpy OTG mode and how does it work? MISRA. Array is used as pointer to single object. V544. If a return value isn't required, declare the function to have void return type. As your code stands, if candidate_count is greater than 0 the loop will iterate once and then unconditionally return false, which I don't think is what you want. AUTOSAR. The result should possibly be saved to a temporary variable, which then could be used while calling the 'B' function. AUTOSAR. Is a return statement mandatory for C++ functions that do not return void? V3003. V5626. The 'if (ptr != NULL)' check can be removed. N operand of '? Flowing off the end of a non-void function with no 'return' results in undefined behavior. It's possible that 'else' keyword is missing. Logical literal belongs to second operator with a higher priority. There should be no user-defined variadic functions. In this case, we have the 'main' function. It is safer to use the 'foo' function. MISRA. V2571. The virtual destructor is not present, although the 'Foo' class contains virtual functions. V6012. c - error: non-void function does not return a value in all control Perhaps, this statement should have been compared with something else. A pattern was detected: A || (A && ). V203. V3037. Potential XXE vulnerability. V6051. It will be closed before the method exits. Decreased performance. Usage of potentially invalid handle. The expression is always false. V608. C compiling Error: non-void function does not return a value in all control paths - CS50. Using 'std::move' function's with const object disables move semantics. V791. V818. V592. AUTOSAR. The body of a loop\conditional statement should be enclosed in braces. WPF: the names of the property registered for DependencyProperty, and of the property used to access it, do not correspond with each other. V3177. MISRA. OWASP. Two opposite conditions were encountered. V5621. V1080. The value from the uninitialized optional is used. Consequently, the compiler will flag this as an error. This may lead to undefined behavior. Consider inspecting the expression. Consider reviewing the correctness of 'X' item's usage. V1061. Shift by N bits is greater than the size of type. MISRA. V2527. This leads to the variable binding to a temporary object instead of a range element. MISRA. The analyzer has detected a non-void function with an execution path that does not return a value. Floating-point values should not be tested for equality or inequality. The output of the example looks like this: More info about Internet Explorer and Microsoft Edge. MISRA. V1068. V2515. Check lines: N1, N2. V6003. V617. V620. Without re-registering for finalization, destructor will not be called a second time on resurrected object. V686. V3029. Consider making the project fully compilable and building it before analysis. MISRA. This may lead to undefined behavior. V659. Decreased performance. V801. V1089. Expression of sizeof(T)*N kind is summed up with pointer to T type. V3155. V2533. The 'std::uncaught_exception' function is deprecated since C++17 and is removed in C++20. V597. The loop counter should not have floating-point type. Then, copy all the example code, in the order shown. An overflow of the 32-bit variable is possible inside a long cycle which utilizes a memsize-type loop counter. "non-void function does not return a value in all control paths". Does a password policy with a restriction of repeated characters increase security? String literal contains potential interpolated expression. Connect and share knowledge within a single location that is structured and easy to search. MISRA. V5620. V512. Perhaps a short-circuit operator should be used instead. V5008. Let's consider an example. V1063. MISRA. V3019. See documentation for details. Function '' doesn't return a value on all code paths. This means that the second 'if' statement is senseless. V572. V1014. Values of different enum types are compared. The expression is excessive or contains a misprint. As a good engineering practice, always specify a return type for your functions. The reason for the error/warning message is because a void function, by definition, does not return a value. MISRA. 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. V651. Constant expression in switch statement. Every 'switch' statement should have a 'default' label, which, in addition to the terminating 'break' statement, should contain either a statement or a comment. The value of a composite expression should not be assigned to an object with wider essential type. V575. The second condition is always false. The second block starts with NN string. If no return expression is supplied, the Microsoft C runtime returns a value that indicates success (0) or failure (a non-zero value). Consider inspecting the loop expression. Compound assignment expression is used inside condition. MISRA. MISRA. Consider inspecting the expression. V781. V2553. Making statements based on opinion; back them up with references or personal experience. V6011. Consider checking the N format items of the 'Foo' function. Operands of the logical '&&' or the '||' operators, the '!' V586. The main function calls two functions: report_square and report_ratio. The address of an object with local scope should not be passed out of its scope. V2526. V2611. V828. The arguments violate the bounds of collection. Calling overrideable class member from constructor is dangerous. V820. Length of function body or class declaration is more than 2000 lines. Connect and share knowledge within a single location that is structured and easy to search. V2001. V836. Potentially tainted data might be used to execute a malicious script. V205. Code's operational logic does not correspond with its formatting. V669. V005. The signature of method 'X' does not conform to serialization requirements. The function with the 'abort/exit/getenv/system' name should not be used. V805. Call of the 'Foo' function will lead to buffer underflow. It makes code less human error prone. MISRA. V3063. It is likely that a wrong variable is being incremented inside the 'for' operator. It's odd that this method always returns one and the same value of NN. The function with the 'abort/exit/getenv/system' name should not be used. V6089. C++ | Delft Using 'await' in a critical section may lead to a lock being released on a different thread. Significant bits may be lost. It is possible that an error is present. All conditional inclusion preprocessor directives should reside in the same file as the conditional inclusion directive to which they are related. OWASP. Exception classes should be publicly accessible. It is highly probable that the semicolon ';' is missing after 'return' keyword. V3545. Priority of the '&&' operator is higher than that of the '||' operator. Unreachable code detected. Value of variable is not modified. . V745. V740. Check the array initialization. This expression can be simplified. The value is out of range of enum values. There should be no occurrence of undefined or critical unspecified behaviour. V5606. V5305. Potentially tainted data is processed by regular expression that contains an unsafe pattern. V2617. Passing cheap-to-copy argument by reference may lead to decreased performance. Size of the 'time_t' type is not 64 bits. The object is already of the same type. Continue with Recommended Cookies. 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. An abnormality within similar comparisons. A minor scale definition: am I missing something? Consider inspecting usage of 'Y' counter. MISRA. Potential logical error is present. Exception classes should be publicly accessible. Interpreting non-statistically significant results: Do we have "no evidence" or "insufficient evidence" to reject the null? Why does Acts not mention the deaths of Peter and Paul? V104. OWASP. caeser - Getting "non-void function does not return a value in all Generating points along line with specifying the origin of point generation in QGIS. It's better to use '= default;' syntax instead of empty body. Save the file, and compile it in a Developer command prompt window by using the command: Then, to run the example code, enter C_return_statement.exe at the command prompt. Implicit type conversion N argument of function 'foo' to 32-bit type. The '+' operation is executed. Potential Java SE API compatibility issue. nlohmann/json.hpp:20017:5: warning: non-void function does not return a value in all control paths [-Wreturn-type] reference operator[](T* key) nlohmann/json.hpp:20925:5: warning: non-void function does not return a value in all control paths [-Wreturn-type] One, the C standard specifies the behavior of, C error: non-void function does not return a value in all control paths [-Werror,-Wreturn-type], the assembly GCC 11.2 generates for this with, testing by changing the function return type to int and changing the returns to, How a top-ranked engineering school reimagined CS curriculum (Ep. An odd precise comparison.

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warning non void function does not return a value

As a part of Jhan Dhan Yojana, Bank of Baroda has decided to open more number of BCs and some Next-Gen-BCs who will rendering some additional Banking services. We as CBC are taking active part in implementation of this initiative of Bank particularly in the states of West Bengal, UP,Rajasthan,Orissa etc.

warning non void function does not return a value

We got our robust technical support team. Members of this team are well experienced and knowledgeable. In addition we conduct virtual meetings with our BCs to update the development in the banking and the new initiatives taken by Bank and convey desires and expectation of Banks from BCs. In these meetings Officials from the Regional Offices of Bank of Baroda also take part. These are very effective during recent lock down period due to COVID 19.

warning non void function does not return a value

Information and Communication Technology (ICT) is one of the Models used by Bank of Baroda for implementation of Financial Inclusion. ICT based models are (i) POS, (ii) Kiosk. POS is based on Application Service Provider (ASP) model with smart cards based technology for financial inclusion under the model, BCs are appointed by banks and CBCs These BCs are provided with point-of-service(POS) devices, using which they carry out transaction for the smart card holders at their doorsteps. The customers can operate their account using their smart cards through biometric authentication. In this system all transactions processed by the BC are online real time basis in core banking of bank. PoS devices deployed in the field are capable to process the transaction on the basis of Smart Card, Account number (card less), Aadhar number (AEPS) transactions.