What are some tips for using string iterators in C++11?

What are some tips for using string iterators in C++11?

In C++11, string iterators can be very useful. Here are some tips: 1. Use begin() and end() to get iterators. 2. Remember that string iterators are random access, so you can use arithmetic operations. 3. Use std::find to search for characters or substrings.

Can you give an example of using string iterators?

Sure! Here's a simple example:

std::string str = "Hello, World!";
for (auto it = str.begin(); it != str.end(); ++it) {
    std::cout << *it << ' ';
}

This will print each character in the string.

What about performance considerations?

Good question! String iterators are efficient, but be cautious with operations that modify the string while iterating, as it can invalidate iterators. Always ensure the string remains unchanged during iteration.

Are there any common pitfalls to avoid?

Yes, avoid dereferencing end iterators, as it leads to undefined behavior. Also, be careful with iterator invalidation when modifying the string.