strcmp

The strcmp function compares the contents of string1 and string2 and returns a value indicating their relationship.

The strcmp function returns the following values to indicate the relationship of string1 to string2:

memcmp, strncmp

#include <string.h>
#include <stdio.h> /* for printf */

void tst_strcmp (void) {

  char buf1 [] = "Bill Smith";
  char buf2 [] = "Bill Smithy";
  char i;

  i = strcmp (buf1, buf2);

  if (i < 0)
    printf ("buf1 < buf2\n");
  else if (i > 0)
    printf ("buf1 > buf2\n");
  else
    printf ("buf1 == buf2\n");
}