What character is used to signify the end of a string in C++?

In C++, the character that signifies the end of a string is represented by the null character, which is denoted as \0. This character is used to indicate the termination point of a string, allowing functions and operations that process strings to know where the string ends.

When a string is created in a character array, the \0 character is automatically added at the end to mark the end of the string. For example, if you have a string "Hello", it is stored in memory as a series of characters followed by \0, as in H, e, l, l, o, \0. This is essential for functions that manipulate strings, such as strlen(), which calculates the length of a string by counting characters until it encounters the \0 character.

Understanding the null character is critical in C++ programming, especially when dealing with functions that expect C-style strings, as it ensures proper handling and manipulation of the string data. Other characters, like a semicolon or a space, do not serve this purpose, and the numeric 0 is an integer that does not indicate a string termination. Therefore, recognizing \0 as the end-of-string marker