?? cdb_seq.c
字號:
/* sequential record retrieval routines * * This file is a part of tinycdb package by Michael Tokarev, mjt@corpit.ru. * Public domain. */#include "common/setup_before.h"#include "cdb_int.h"#include "common/setup_after.h"intcdb_seqnext(unsigned *cptr, struct cdb *cdbp) { unsigned klen, vlen; unsigned pos = *cptr; unsigned dend = cdbp->cdb_dend; const unsigned char *mem = cdbp->cdb_mem; if (pos > dend - 8) return 0; klen = cdb_unpack(mem + pos); vlen = cdb_unpack(mem + pos + 4); pos += 8; if (dend - klen < pos || dend - vlen < pos + klen) return errno = EPROTO, -1; cdbp->cdb_kpos = pos; cdbp->cdb_klen = klen; cdbp->cdb_vpos = pos + klen; cdbp->cdb_vlen = vlen; *cptr = pos + klen + vlen; return 1;}
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -