The Postman's Sort

Listing 2 (psort.h)

/*
Postman's Sort (R) Version 1.0
Copyright (c) Robert Ramey 1991. All Rights Reserved
*/

typedef int BOOLEAN;
typedef unsigned int MEM_SIZE;
typedef size_t SEG_SIZE;
typedef long FILE_SIZE; /* note: cannot be unsigned as -1 is used for EOF */

#define K 1024
#define TRUE 1
#define FALSE 0
#define private static
#define DEFAULT_RECORD SIZE 511
#define MAX_BUFFER_SIZE 31
#define isdelim(c) (c==delimiter)

#define RB_SIZE 30   /* Default size for input buffer from work file */
#define SB_SIZE 30     /* Default size for output buffer to workfile */
#define B_SIZE 30           /* Default size for input/output buffers */
/* End of-File */