Contents
What is a non-void function in C?
In functions that have non-void return types (dont worry, we’ll cover “void” later), a value is returned by the function when we call it. Another clue that this is a non-void function is that in the body, the statement return 110; means that this function will return the number value 110.
Does return end a void function?
“A void function cannot return anything” this statement is not always true.
Do voids need a return?
Void functions are created and used just like value-returning functions except they do not return a value after the function executes. You may or may not use the return statement, as there is no return value. Even without the return statement, control will return to the caller automatically at the end of the function.
When does control reach end of non void function?
control reaches end of non-void function [-Wreturn-type] Once you specify a return type for a function, every control path should return the value. If the condition evaluates to false then your code never returns anything hence the compiler complains.
What to do when control never reaches end of function?
At the end of the function, add a return statement that returns a suitable return value, even if control never reaches there. From the prototype it seems you want to return something. Thanks for contributing an answer to Stack Overflow!
When does code reach end of function without return statement?
The compiler analyzes your code, and sees that a return statement will be executed for all values of sort_order between 0 and 5, inclusive. However, if the sort_order is negative or more than 5, the code would reach the end of the function without a return statement; that is why the compiler issues a warning.
When does a function return nothing in C + +?
Once you specify a return type for a function, every control path should return the value. If the condition evaluates to false then your code never returns anything hence the compiler complains.