我在一个名为的文件中有以下代码RaftLog.cc：
#include <algorithm>
#include <fcntl.h>
#include <sys/stat.h>
namespace LogCabin {
namespace Server {
namespace RaftConsensusInternal {
namespace FilesystemUtil = Storage::FilesystemUtil;
namespace {
bool
fileToProto(const std::string& path, google::protobuf::Message& out)
{
int fd = open(path.c_str(), O_RDONLY);
if (fd == -1)
return false;
else
close(fd);
FilesystemUtil::FileContents file(path);
// more code down here, not useful to the problem.
但是，当我编译时，我有：
build/Server/RaftLog.cc: In function ‘bool LogCabin::Server::RaftConsensusInternal::{anonymous}::fileToProto(const string&, google::protobuf::Message&)’:
build/Server/RaftLog.cc:43:17: error: ‘close’ was not declared in this scope
build/Server/RaftLog.cc: In function ‘void LogCabin::Server::RaftConsensusInternal::{anonymous}::protoToFile(google::protobuf::Message&, const string&)’:
build/Server/RaftLog.cc:76:13: error: ‘close’ was not declared in this scope
In file included from ./Server/RaftConsensus.h:17:0,
我不知道为什么该close()函数不包含在#include <fcntl.h>. 有人可以帮助我吗？也让我知道我是否应该包含更多代码。