The strcmp() function compares two strings.

It returns a 0 if both strings are equal, and nonzero otherwise.

The comparison is case-sensitive.

int strcmp(char *str1,char* str2)

Example:
 
void main()

{

  char str1[20] = "Hello World";

  if( strcmp(str1,"Hello World")==0)

  {

     printf("Strings match");

  }

}

Output:

  Strings match