ErrorResult doSomething(int value) { if(value < 0) { return Failed("Value must be positive"); } // do something with value return Success(); }
void processData(std::vectordata) { for(int i=0; i In this example, the function processData takes a vector of integers as a parameter and loops through each element. If an element is negative, the function throws a Failed ErrorResult with the message "Value cannot be negative". Otherwise, the function processes the element normally. The package library that the cpp ErrorResult Failed belongs to is likely the standard library, since it is a common way to handle errors in C++.