C library: string <string.h>

The string library in C programming language provides functions that handle string values. With functions inside this C library, we can perform various operations on strings or character arrays. This C library is included with most C compilers.

Note: to use functions inside string library, we need to include the header file string.h into our program (#include <string.h>).

Here are some of the functions that we can find in this C library:

• C function: strchr
  Searches for a specific character in a character array.
• C function: strcmp
  Compares character arrays.
• C function: strlen
  Determines the length of a character array.
• C function: strncat
  Appends characters from one array to another up to a given number.