T版说得对，头文件不是这么写的。
看看国外程序员是如何写头文件的：来自gzip库中的gzip.h
/* gzip.h -- common declarations for all gzip modules
* Copyright (C) 1992-1993 Jean-loup Gailly.
* This is free software; you can redistribute it and/or modify it under the
* terms of the GNU General Public License, see the file COPYING.
*/
#if defined(__STDC__) || defined(PROTO)
#
define OF(args)
args
#else
#
define OF(args)
()
#endif
#ifdef __STDC__
typedef void *voidp;
#else
typedef char *voidp;
#endif
/* I don't like nested includes, but the string and io functions are used
* too often
*/
#include <stdio.h>
#if !defined(NO_STRING_H) || defined(STDC_HEADERS)
#
include <string.h>
#
if !defined(STDC_HEADERS) && !defined(NO_MEMORY_H) && !defined(__GNUC__)
#
include <memory.h>
#
endif
#
define memzero(s, n)
memset ((voidp)(s), 0, (n))
#else
#
include <strings.h>
#
define strchr
index
#
define strrchr
rindex
#
define memcpy(d, s, n)
bcopy((s), (d), (n))
#
define memcmp(s1, s2, n) bcmp((s1), (s2), (n))
#
define memzero(s, n)
bzero((s), (n))
#endif
#ifndef RETSIGTYPE
#
define RETSIGTYPE void
#endif
#define local static
typedef unsigned char
uch;
typedef unsigned short ush;
typedef unsigned long
ulg;
/* Return codes from gzip */
#define OK
0
#define ERROR
1
#define WARNING 2
/* Compression methods (see algorithm.doc) */
#define STORED
0
#define COMPRESSED
1
#define PACKED
2
#define LZHED
3
/* methods 4 to 7 reserved */
#define DEFLATED
8
#define MAX_METHODS 9
extern int method;
/* compression method */
/* To save memory for 16 bit systems, some arrays are overlaid between
* the various modules:
* deflate:
prev+head
window
d_buf
l_buf
outbuf
* unlzw:
tab_prefix
tab_suffix
stack
inbuf
outbuf
* inflate:
window
inbuf
* unpack:
window
inbuf
prefix_len
* unlzh:
left+right
window
c_table inbuf c_len
* For compression, input is done in window[]. For decompression, output
* is done in window except for unlzw.
*/
#ifndef
INBUFSIZ
#
ifdef SMALL_MEM
#
define INBUFSIZ
0x2000
/* input buffer size */
#
else
#
define INBUFSIZ
0x8000
/* input buffer size */
#
endif
#endif
#define INBUF_EXTRA
64
/* required by unlzw() */
#ifndef
OUTBUFSIZ
#
ifdef SMALL_MEM
#
define OUTBUFSIZ
8192
/* output buffer size */
#
else
#
define OUTBUFSIZ
16384
/* output buffer size */
#
endif
#endif
#define OUTBUF_EXTRA 2048
/* required by unlzw() */
#ifndef DIST_BUFSIZE
#
ifdef SMALL_MEM
#
define DIST_BUFSIZE 0x2000 /* buffer for distances, see trees.c */
#
else
#
define DIST_BUFSIZE 0x8000 /* buffer for distances, see trees.c */
#
endif
#endif
#ifdef DYN_ALLOC
#
define EXTERN(type, array)
extern type * near array
#
define DECLARE(type, array, size)
type * near array
#
define ALLOC(type, array, size) { \
array = (type*)fcalloc((size_t)(((size)+1L)/2), 2*sizeof(type)); \
if (array == NULL) error("insufficient memory"); \
}
#
define FREE(array) {if (array != NULL) fcfree(array), array=NULL;}
#else
#
define EXTERN(type, array)
extern type array[]
#
define DECLARE(type, array, size)
type array[size]
#
define ALLOC(type, array, size)
#
define FREE(array)
#endif
EXTERN(uch, inbuf);
/* input buffer */
EXTERN(uch, outbuf);
/* output buffer */
EXTERN(ush, d_buf);
/* buffer for distances, see trees.c */
EXTERN(uch, window);
/* Sliding window and suffix table (unlzw) */
#define tab_suffix window
#ifndef MAXSEG_64K
#
define tab_prefix prev
/* hash link (see deflate.c) */
#
define head (prev+WSIZE)
/* hash head (see deflate.c) */
EXTERN(ush, tab_prefix);
/* prefix code (see unlzw.c) */
#else
#
define tab_prefix0 prev
#
define head tab_prefix1
EXTERN(ush, tab_prefix0); /* prefix for even codes */
EXTERN(ush, tab_prefix1); /* prefix for odd
codes */
#endif
extern unsigned insize; /* valid bytes in inbuf */
extern unsigned inptr;
/* index of next byte to be processed in inbuf */
extern unsigned outcnt; /* bytes in output buffer */
extern long bytes_in;
/* number of input bytes */
extern long bytes_out;
/* number of output bytes */
extern long header_bytes;/* number of bytes in gzip header */
#define isize bytes_in
/* for compatibility with old zip sources (to be cleaned) */
extern int
ifd;
/* input file descriptor */
extern int
ofd;
/* output file descriptor */
extern char ifname[];
/* input file name or "stdin" */
extern char ofname[];
/* output file name or "stdout" */
extern char *progname;
/* program name */
extern long time_stamp; /* original time stamp (modification time) */
extern long ifile_size; /* input file size, -1 for devices (debug only) */
typedef int file_t;
/* Do not use stdio */
#define NO_FILE
(-1)
/* in memory compression */
#define
PACK_MAGIC
"\037\036" /* Magic header for packed files */
#define
GZIP_MAGIC
"\037\213" /* Magic header for gzip files, 1F 8B */
#define
OLD_GZIP_MAGIC "\037\236" /* Magic header for gzip 0.5 = freeze 1.x */
#define
LZH_MAGIC
"\037\240" /* Magic header for SCO LZH Compress files*/
#define PKZIP_MAGIC
"\120\113\003\004" /* Magic header for pkzip files */
/* gzip flag byte */
#define ASCII_FLAG
0x01 /* bit 0 set: file probably ascii text */
#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
#define EXTRA_FIELD
0x04 /* bit 2 set: extra field present */
#define ORIG_NAME
0x08 /* bit 3 set: original file name present */
#define COMMENT
0x10 /* bit 4 set: file comment present */
#define ENCRYPTED
0x20 /* bit 5 set: file is encrypted */
#define RESERVED
0xC0 /* bit 6,7:
reserved */
/* internal file attribute */
#define UNKNOWN 0xffff
#define BINARY
0
#define ASCII
1
#ifndef WSIZE
#
define WSIZE 0x8000
/* window size--must be a power of two, and */
#endif
/*
at least 32K for zip's deflate method */
#define MIN_MATCH
3
#define MAX_MATCH
258
/* The minimum and maximum match lengths */
#define MIN_LOOKAHEAD (MAX_MATCH+MIN_MATCH+1)
/* Minimum amount of lookahead, except at the end of the input file.
* See deflate.c for comments about the MIN_MATCH+1.
*/
#define MAX_DIST
(WSIZE-MIN_LOOKAHEAD)
/* In order to simplify the code, particularly on 16 bit machines, match
* distances are limited to MAX_DIST instead of WSIZE.
*/
extern int decrypt;
/* flag to turn on decryption */
extern int exit_code;
/* program exit code */
extern int verbose;
/* be verbose (-v) */
extern int quiet;
/* be quiet (-q) */
extern int level;
/* compression level */
extern int test;
/* check .z file integrity */
extern int to_stdout;
/* output to stdout (-c) */
extern int save_orig_name; /* set if original name must be saved */
#define get_byte()
(inptr < insize ? inbuf[inptr++] : fill_inbuf(0))
#define try_byte()
(inptr < insize ? inbuf[inptr++] : fill_inbuf(1))
/* put_byte is used for the compressed output, put_ubyte for the
* uncompressed output. However unlzw() uses window for its
* suffix table instead of its output buffer, so it does not use put_ubyte
* (to be cleaned up).
*/
#define put_byte(c) {outbuf[outcnt++]=(uch)(c); if (outcnt==OUTBUFSIZ)\
flush_outbuf();}
#define put_ubyte(c) {window[outcnt++]=(uch)(c); if (outcnt==WSIZE)\
flush_window();}
/* Output a 16 bit value, lsb first */
#define put_short(w) \
{ if (outcnt < OUTBUFSIZ-2) { \
outbuf[outcnt++] = (uch) ((w) & 0xff); \
outbuf[outcnt++] = (uch) ((ush)(w) >> 8); \
} else { \
put_byte((uch)((w) & 0xff)); \
put_byte((uch)((ush)(w) >> 8)); \
} \
}
/* Output a 32 bit value to the bit stream, lsb first */
#define put_long(n) { \
put_short((n) & 0xffff); \
put_short(((ulg)(n)) >> 16); \
}
#define seekable()
0
/* force sequential output */
#define translate_eol 0
/* no option -a yet */
#define tolow(c)
(isupper(c) ? (c)-'A'+'a' : (c))
/* force to lower case */
/* Macros for getting two-byte and four-byte header values */
#define SH(p) ((ush)(uch)((p)[0]) | ((ush)(uch)((p)[1]) << 8))
#define LG(p) ((ulg)(SH(p)) | ((ulg)(SH((p)+2)) << 16))
/* Diagnostic functions */
#ifdef DEBUG
#
define Assert(cond,msg) {if(!(cond)) error(msg);}
#
define Trace(x) fprintf x
#
define Tracev(x) {if (verbose) fprintf x ;}
#
define Tracevv(x) {if (verbose>1) fprintf x ;}
#
define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
#
define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
#else
#
define Assert(cond,msg)
#
define Trace(x)
#
define Tracev(x)
#
define Tracevv(x)
#
define Tracec(c,x)
#
define Tracecv(c,x)
#endif
#define WARN(msg) {if (!quiet) fprintf msg ; \
if (exit_code == OK) exit_code = WARNING;}
/* in zip.c: */
extern int zip
OF((int in, int out));
extern int file_read
OF((char *buf,
unsigned size));
/* in unzip.c */
extern int unzip
OF((int in, int out));
extern int check_zipfile OF((int in));
/* in unpack.c */
extern int unpack
OF((int in, int out));
/* in unlzh.c */
extern int unlzh
OF((int in, int out));
/* in gzip.c */
RETSIGTYPE abort_gzip OF((void));
/* in deflate.c */
void lm_init OF((int pack_level, ush *flags));
ulg
deflate OF((void));
/* in trees.c */
void ct_init
OF((ush *attr, int *method));
int
ct_tally
OF((int dist, int lc));
ulg
flush_block OF((char *buf, ulg stored_len, int eof));
/* in bits.c */
void
bi_init
OF((file_t zipfile));
void
send_bits
OF((int value, int length));
unsigned bi_reverse OF((unsigned value, int length));
void
bi_windup
OF((void));
void
copy_block OF((char *buf, unsigned len, int header));
extern
int (*read_buf) OF((char *buf, unsigned size));
/* in util.c: */
extern int copy
OF((int in, int out));
extern ulg
updcrc
OF((uch *s, unsigned n));
extern void clear_bufs
OF((void));
extern int
fill_inbuf
OF((int eof_ok));
extern void flush_outbuf
OF((void));
extern void flush_window
OF((void));
extern void write_buf
OF((int fd, voidp buf, unsigned cnt));
extern char *strlwr
OF((char *s));
extern char *basename
OF((char *fname));
extern void make_simple_name OF((char *name));
extern char *add_envopt
OF((int *argcp, char ***argvp, char *env));
extern void error
OF((char *m));
extern void warn
OF((char *a, char *b));
extern void read_error
OF((void));
extern void write_error
OF((void));
extern void display_ratio OF((long num, long den, FILE *file));
extern voidp xmalloc
OF((unsigned int size));
/* in inflate.c */
extern int inflate OF((void));
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