How can I find a substring in a C++ string?

How can I find a substring in a C++ string?

You can use the find method of the std::string class to locate a substring. For example: str.find("substring").

What does the find method return if the substring is not found?

If the substring is not found, find returns std::string::npos, which is a constant representing a non-position.

Can I specify the starting position for the search?

Yes, you can specify a starting position by passing an additional argument to find, like this: str.find("substring", start_position).

Are there any other methods to search for substrings?

Yes, you can also use rfind to search from the end of the string or find_first_of to find any character from a set.