Essential C++

find_first_of()

find_first_of() accepts two iterator pairs. The first pair marks the elements to search. The second pair marks a collection of elements to search for. For example, to find the first vowel in the character sequence synesthesia, we define our second sequence as aeiou. find_first_of() returns an iterator to the first instance of an element of the sequence of vowels, in this case pointing to the first e. If the first sequence does not contain any of the elements, an iterator that addresses the end of the first sequence is returned. An optional fifth parameter allows us to override the default equality operator with any binary predicate operation.

 #include <algorithm> string s_array[] = { "Ee", "eE", "ee", "Oo", "oo", "ee" }; string ...