Working With C Strings

In C, strings are just arrays of characters that end with a special character called the null terminator (\0). This tells the program where the string stops.

C gives us a set of built-in functions in the string.h library to work with strings. These functions let you copy, compare, join, and search strings easily.

To use the string library make sure you add this in your source file:

#include <string.h>

👉 Important: If you're using Visual Studio, you may need to add this line at the top of your file to avoid warnings when using functions like strcpy() or scanf():

#define _CRT_SECURE_NO_WARNINGS

Reassign C Strings

In C, you cannot assign a new string to a char array using the = sign after it has been created. For example: