/* unpack 32bit integer * * This file is a part of tinycdb package by Michael Tokarev, mjt@corpit.ru. * Public domain. */#include "common/setup_before.h"#include "cdb.h"#include "common/setup_after.h"unsignedcdb_unpack(const unsigned char buf[4]){  unsigned n = buf[3];  n <<= 8; n |= buf[2];  n <<= 8; n |= buf[1];  n <<= 8; n |= buf[0];  return n;}