How can I iterate through a string and also know the index (current position)?

Question

Often when iterating through a string (or any enumerable object), we are not only interested in the current value, but also the position (index). To accomplish this by using

Answer 1

You can use standard STL function distance as mentioned before

index = std::distance(s.begin(), it);

Also, you can access string and some other containers with the c-like interface:

for (i=0;i<string1.length();i++) string1[i];