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

How do 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: 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, find() returns std::string::npos, which is a constant representing the largest possible value for an element of type size_t.

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

Yes, you can use find() to search for a single character as well. For example: str.find('o') will return the position of the first occurrence of 'o'.

Are there other methods to manipulate strings in C++?

Yes, C++ provides several methods like substr(), replace(), and append() for various string manipulations.