Comparison of Two Strings

• The strcmp() function is part of the standard C library ( string. h ).
• Its primary purpose is to compare the characters of the two strings in sequence until it finds a mismatch or until the end of the strings is reached (that is, the null character '\0').
• To compare two strings in C, you can use the strcmp function from the library.
• Here's a simple example:
Program.c
#include <stdio.h> #include <string.h> int main() { char str1[] = "Hello"; char str2[] = "World"; if (strcmp(str1, str2) == 0) { printf("Strings are equal.\n"); } else { printf("Strings are not equal.\n"); } return 0; }

Output:
Strings are not equal.

• This program compares the content of str1 and str2 using strcmp. If the result is 0, the strings are equal; otherwise, they are not.
• Note that strcmp is case-sensitive. If you need a case-insensitive comparison, you can use stricmp (Windows) or strcasecmp (Unix/Linux).