C strcmp() function

C strcmp() function - compare two strings

The strcmp() function is used to compare two given strings.

Syntax:

int strcmp(const char *string1, const char *string2)

Parameters:

Return value from strcmp()

Example: strcmp() function

#include <stdio.h>
#include <string.h>

int main()
{
   char str1[] = "1234567890";
   char str2[] = "1234567890";
   int result;
   printf("Original text:");
   printf("\n%s",str1);
   printf("\n%s",str2);
   printf( "\nCompare the said two strings:");
   result = strcmp(str1, str2);
   if( result < 0 )
      printf( "\nFirst is less than second.\n" );
   else if( result == 0 )
      printf( "\nFirst is equal to second.\n" );
   else
      printf( "\nFirst is greater than second.\n" );
   char str3[] = "12345678901";
   char str4[] = "12345678900";
   printf("\nOriginal text:");
   printf("\n%s",str3);
   printf("\n%s",str4);
   printf( "\nCompare the said two strings:");
   result = strcmp(str3, str4);
   if( result < 0 )
      printf( "\nFirst is less than second.\n");
   else if( result == 0 )
      printf( "\nFirst is equal to second.\n");
   else
      printf( "\nFirst is greater than second.\n");   
      
   char str5[] = "12345678901100345678";
   char str6[] = "12345678901297650033";   
   printf("\nOriginal text:");
   printf("\n%s",str5);
   printf("\n%s",str6);
   result = strcmp(str5, str6);
   if( result < 0 )
      printf( "\nFirst is less than second.\n");
   else if( result == 0 )
      printf( "\nFirst is equal to second.\n");
   else
      printf( "\nFirst is greater than second.\n");         
return 0;
}

Output:

Original text:
1234567890
1234567890
Compare the said two strings:
First is equal to second.

Original text:
12345678901
12345678900
Compare the said two strings:
First is greater than second.

Original text:
12345678901100345678
12345678901297650033
First is less than second.

C Programming Code Editor:

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