How can I search for a substring in a C++ string?

How can I search for a substring in a C++ string?

You can use the find method of the std::string class to search for a substring. For example: std::string str = "Hello, World!"; size_t pos = str.find("World");.

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

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

Can I use find to search for a character instead of a substring?

Yes, the find method can also be used to search for a single character. For example: str.find('o'); will return the position of the first occurrence of 'o'.

Are there any other methods for string searching in C++?

Yes, you can also use rfind for reverse searching, or find_first_of to find the first occurrence of any character from a set.