can't understand this function definition - 未名空间MITBBS历史存档

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can't understand this function definition

can't understand this function definition# Programming - 葵花宝典

b*e2005-11-09 08:11

1 楼

the gdbm package,
look into
extern GDBM_FILE gdbm_open __P((char *, int, int, int, void (*)()));
extern void gdbm_close __P((GDBM_FILE));
extern int gdbm_store __P((GDBM_FILE, datum, datum, int));
extern datum gdbm_fetch __P((GDBM_FILE, datum));
extern int gdbm_delete __P((GDBM_FILE, datum));
extern datum gdbm_firstkey __P((GDBM_FILE));
extern datum gdbm_nextkey __P((GDBM_FILE, datum));
extern int gdbm_reorganize __P((GDBM_FILE));
extern void gdbm_sync __P((GDBM_FILE));
extern int gdbm_

b*e2005-11-09 08:11

2 楼

hmm, clean after myself :)
__P is macro, it is a way they use to support C++ function call
Thanks,

【在 b*********e 的大作中提到】

: the gdbm package,
: look into
: extern GDBM_FILE gdbm_open __P((char *, int, int, int, void (*)()));
: extern void gdbm_close __P((GDBM_FILE));
: extern int gdbm_store __P((GDBM_FILE, datum, datum, int));
: extern datum gdbm_fetch __P((GDBM_FILE, datum));
: extern int gdbm_delete __P((GDBM_FILE, datum));
: extern datum gdbm_firstkey __P((GDBM_FILE));
: extern datum gdbm_nextkey __P((GDBM_FILE, datum));
: extern int gdbm_reorganize __P((GDBM_FILE));