【发布时间】：2013-07-11 17:05:15
【问题描述】：
我一直在使用 Boost 开发一个 C++ 项目，并且在两次编译之间，我一定在 boost 中升级了一些东西，但没有任何意义，因为现在 Boost 依赖项无法编译：
In file included from /usr/include/boost/thread/pthread/mutex.hpp:14:0,
from /usr/include/boost/thread/mutex.hpp:16,
from /usr/include/boost/thread/pthread/thread_data.hpp:12,
from /usr/include/boost/thread/thread.hpp:17,
from /usr/include/boost/thread.hpp:13,
from /blah.h:4,
from bluh.h:3,
from bleh/main.cpp:4:
/usr/include/boost/thread/xtime.hpp:23:5: error: expected identifier before numeric constant
/usr/include/boost/thread/xtime.hpp:23:5: error: expected '}' before numeric constant
/usr/include/boost/thread/xtime.hpp:23:5: error: expected unqualified-id before numeric constant
/usr/include/boost/thread/xtime.hpp:46:14: error: expected type-specifier before 'system_time'
In file included from /usr/include/boost/thread/pthread/mutex.hpp:14:0,
from /usr/include/boost/thread/mutex.hpp:16,
from /usr/include/boost/thread/pthread/thread_data.hpp:12,
from /usr/include/boost/thread/thread.hpp:17,
from /usr/include/boost/thread.hpp:13,
from /blah,
from /bleh,(changed these names, obviously)
from /bluh /main.cpp:4:
/usr/include/boost/thread/xtime.hpp: In function 'int xtime_get(xtime*, int)':
/usr/include/boost/thread/xtime.hpp:73:40: error: 'get_system_time' was not declared in this scope
/usr/include/boost/thread/xtime.hpp:73:40: note: suggested alternative:
/usr/include/boost/thread/thread_time.hpp:19:24: note: 'boost::get_system_time'
/usr/include/boost/thread/xtime.hpp: At global scope:
/usr/include/boost/thread/xtime.hpp:88:1: error: expected declaration before '}' token
make[2]: *** [CMakeFiles/edge_based_tracker.dir/main.o] Error 1
make[1]: *** [CMakeFiles/edge_based_tracker.dir/all] Error 2
make: *** [all] Error 2
有什么想法吗？我尝试将 TIME_UTC 更改为 TIME_UTC_，因为这是在另一个网站上向我推荐的，但这似乎没有帮助。
编辑：Boost 版本是版本：1.48.0.2。我在下面附上了 xtime：
// Copyright (C) 2001-2003
// William E. Kempf
// Copyright (C) 2007-8 Anthony Williams
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef BOOST_XTIME_WEK070601_HPP
#define BOOST_XTIME_WEK070601_HPP
#include <boost/thread/detail/config.hpp>
#include <boost/cstdint.hpp>
#include <boost/thread/thread_time.hpp>
#include <boost/date_time/posix_time/conversion.hpp>
#include <boost/config/abi_prefix.hpp>
namespace boost {
enum xtime_clock_types
{
TIME_UTC=1 //LINE 23
// TIME_TAI,
// TIME_MONOTONIC,
// TIME_PROCESS,
// TIME_THREAD,
// TIME_LOCAL,
// TIME_SYNC,
// TIME_RESOLUTION
};
struct xtime
{
#if defined(BOOST_NO_INT64_T)
typedef int_fast32_t xtime_sec_t; //INT_FAST32_MIN <= sec <= INT_FAST32_MAX
#else
typedef int_fast64_t xtime_sec_t; //INT_FAST64_MIN <= sec <= INT_FAST64_MAX
#endif
typedef int_fast32_t xtime_nsec_t; //0 <= xtime.nsec < NANOSECONDS_PER_SECOND
xtime_sec_t sec;
xtime_nsec_t nsec;
operator system_time() const
{
return boost::posix_time::from_time_t(0)+
boost::posix_time::seconds(static_cast<long>(sec))+
#ifdef BOOST_DATE_TIME_HAS_NANOSECONDS
boost::posix_time::nanoseconds(nsec);
#else
boost::posix_time::microseconds((nsec+500)/1000);
#endif
}
};
inline xtime get_xtime(boost::system_time const& abs_time)
{
xtime res;
boost::posix_time::time_duration const time_since_epoch=abs_time-boost::posix_time::from_time_t(0);
res.sec=static_cast<xtime::xtime_sec_t>(time_since_epoch.total_seconds());
res.nsec=static_cast<xtime::xtime_nsec_t>(time_since_epoch.fractional_seconds()*(1000000000/time_since_epoch.ticks_per_second()));
return res;
}
inline int xtime_get(struct xtime* xtp, int clock_type)
{
if (clock_type == TIME_UTC)
{
*xtp=get_xtime(get_system_time());
return clock_type;
}
return 0;
}
inline int xtime_cmp(const xtime& xt1, const xtime& xt2)
{
if (xt1.sec == xt2.sec)
return (int)(xt1.nsec - xt2.nsec);
else
return (xt1.sec > xt2.sec) ? 1 : -1;
}
} // namespace boost
#include <boost/config/abi_suffix.hpp>
#endif //BOOST_XTIME_WEK070601_HPP
编辑：为了清楚起见，代码在导入 boost/thread.hpp 时失败
【问题讨论】：
-
如果您说出哪个版本的 Boost，并显示失败的代码，并显示 xtime.hpp 第 23 行的内容，并将您的代码简化为最小示例，这将很有帮助。事实上，这个问题目前无法回答。
-
我已编辑问题以包含 Boost 版本和 xtime.hpp。失败的代码只是一个导入语句。
-
您不必复制和粘贴 Boost 代码。显示您尝试编译的您的代码。
-
第 23 行被要求，所以我提出了 Boost 代码，以便 Jonathan Wakely 可以看到。正如我在之前的评论中所说，失败的代码是一个 import 语句，特别是 boost/thread。
标签： boost compilation makefile