Check if element found in array c++

Question

How can I check if my array has an element I'm looking for?

In Java, I would do something like this:

Foo someObject = new Foo(someParameter); Foo foo; //search through Foo[] arr for(int i = 0; i < arr.length; i++){   if arr[i].equals(someObject)     foo = arr[i]; } if (foo == null)   System.out.println("Not found!"); else   System.out.println("Found!"); 

But in C++ I don't think I'm allowed to search if an Object is null so what would be the C++ solution?

Answer 1

In C++ you would use std::find, and check if the resultant pointer points to the end of the range, like this:

Foo array[10]; ... // Init the array here Foo *foo = std::find(std::begin(array), std::end(array), someObject); // When the element is not found, std::find returns the end of the range if (foo != std::end(array)) {     cerr << "Found at position " << std::distance(array, foo) << endl; } else {     cerr << "Not found" << endl; }