在Linux上，使用gcc 4.3编译实现boost :: thread和互斥量/条件变量的类时，我遇到了以下奇怪的错误，显然是由于与posix线程库的类型冲突导致的：

*Compiling: filter.cpp
/usr/include/boost/thread/condition.hpp: In member function »void boost::condition::wait(L&) [with L = boost::mutex]«:
/host/.../filter.cpp:68:   instantiated from here
/usr/include/boost/thread/condition.hpp:90: Error: no match für »operator!« in »!lock«*
*/usr/include/boost/thread/condition.hpp:90: Notice: candidates are: operator!(bool) <built in>*
*/usr/include/boost/thread/mutex.hpp:66: Error: »pthread_mutex_t boost::mutex::m_mutex« is private
/usr/include/boost/thread/condition.hpp:93: Error: in this context*

这个代码是：

void CFilter::process( CData **s )
{
    boost::mutex::scoped_lock bufferLock(m_mutex);
    while (!m_bStop)
        m_change.wait(bufferLock);                      //<- line 68

    // ... further processing
}

带有类声明

#include <boost/shared_ptr.hpp>
#include <boost/bind.hpp>
#include <boost/thread/condition.hpp>
#include <boost/thread/thread.hpp>
#include <boost/thread/mutex.hpp>

class CFilter
{
    // ...
    boost::shared_ptr<boost::thread> m_thread;
    boost::mutex m_mutex;
    boost::condition m_change;
    // ...

    process( CData **s );
}

运算人错误发生在boost s condition.hpp中。

if (!lock)
    throw lock_error();

我正在使用Boost 1.38.0，在Windows上没有发现任何问题。谢谢帮忙！