C Program for A look-alike of the function strlen( )

/* A look-alike of the function strlen( ) */
main( )
{
char  arr[ ] = "Bamboozled" ;
int  len1, len2 ;
len1 = xstrlen ( arr ) ;
len2 = xstrlen ( "Humpty Dumpty" ) ;
printf ( "\nstring = %s length = %d", arr, len1 ) ;
printf ( "\nstring = %s length = %d", "Humpty Dumpty", len2 ) ;
}
xstrlen ( char  *s )
{
int  length = 0 ;
while ( *s != '\0' )
{
length++ ;
s++ ;
}
return ( length ) ;
}