Question

我正在尝试编译从here获得的代码。我使用sudo apt-get install libboost-all-dev在Ubuntu上安装了boost库。安装顺利，我能够编译所有的例子。然后我尝试使用boost :: asio和Google协议缓冲区example found here。 Vim中的Clang_complete开始给我一些奇怪的问题，让我相信我需要更新boost的版本。（从存储库安装1.46）。

我意识到Ubuntu存储库使用的是旧版本的Boost，所以我决定下载并安装它。我使用this教程来安装库（用./b2替换./bjam）。这是问题开始的时候。下面的代码在Synaptic安装的boost中运行良好，但是在手动构建之后我遇到了很多错误。我在想一些东西不见了，但我不知道如何弄清楚我需要安装什么。

代码如下所示：

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

boost::mutex global_stream_lock;

void WorkerThread( boost::shared_ptr< boost::asio::io_service > io_service )
{
global_stream_lock.lock();
std::cout << "[" << boost::this_thread::get_id()
    << "] Thread Start" << std::endl;
global_stream_lock.unlock();

io_service->run();

global_stream_lock.lock();
std::cout << "[" << boost::this_thread::get_id()
    << "] Thread Finish" << std::endl;
global_stream_lock.unlock();
}

size_t fib( size_t n )
{
if ( n <= 1 )
{
    return n;
}
boost::this_thread::sleep( 
    boost::posix_time::milliseconds( 1000 )
);
return fib( n - 1 ) + fib( n - 2);
}

void CalculateFib( size_t n )
{
global_stream_lock.lock();
std::cout << "[" << boost::this_thread::get_id()
    << "] Now calculating fib( " << n << " ) " << std::endl;
global_stream_lock.unlock();

size_t f = fib( n );

global_stream_lock.lock();
std::cout << "[" << boost::this_thread::get_id()
    << "] fib( " << n << " ) = " << f << std::endl;
global_stream_lock.unlock();
}

int main( int argc, char * argv[] )
{
boost::shared_ptr< boost::asio::io_service > io_service(
    new boost::asio::io_service
);
boost::shared_ptr< boost::asio::io_service::work > work(
    new boost::asio::io_service::work( *io_service )
);

global_stream_lock.lock();
std::cout << "[" << boost::this_thread::get_id()
    << "] The program will exit when all work has finished."
    << std::endl;
global_stream_lock.unlock();

boost::thread_group worker_threads;
for( int x = 0; x < 2; ++x )
{
    worker_threads.create_thread( 
        boost::bind( &WorkerThread, io_service )
    );
}

io_service->post( boost::bind( CalculateFib, 3 ) );
io_service->post( boost::bind( CalculateFib, 4 ) );
io_service->post( boost::bind( CalculateFib, 5 ) );

work.reset();

worker_threads.join_all();

return 0;
}

现在当我尝试编译代码时，我收到以下错误：

命令行： g ++ -o example3a example3a.cpp -lboost_system -lboost_thread 编译器输出：

In file included from /usr/include/boost/algorithm/string/replace.hpp:24:0,
             from /usr/include/boost/units/detail/utility.hpp:25,
             from /usr/include/boost/exception/detail/type_info.hpp:19,
             from /usr/include/boost/exception/detail/object_hex_dump.hpp:15,
             from /usr/include/boost/exception/to_string_stub.hpp:16,
             from /usr/include/boost/exception/info.hpp:16,
             from /usr/include/boost/exception/detail/exception_ptr.hpp:20,
             from /usr/include/boost/exception_ptr.hpp:9,
             from /usr/include/boost/thread/future.hpp:28,
             from /usr/include/boost/thread.hpp:24,
             from example3a.cpp:3:
/usr/include/boost/algorithm/string/formatter.hpp:102:16: error: ‘dissect_formatF’ in 
namespace ‘boost::algorithm::detail’ does not name a type
/usr/include/boost/algorithm/string/formatter.hpp:115:22: error:
‘boost::algorithm::dissect_formatter’ has not been declared
In file included from /usr/include/boost/exception/detail/exception_ptr.hpp:20:0,
             from /usr/include/boost/exception_ptr.hpp:9,
             from /usr/include/boost/thread/future.hpp:28,
             from /usr/include/boost/thread.hpp:24,
             from example3a.cpp:3:
/usr/include/boost/exception/info.hpp: In member function ‘virtual 
boost::shared_ptr<boost::exception_detail::error_info_base>
boost::exception_detail::error_info_container_impl::get(const
boost::exception_detail::type_info_&) const’:
/usr/include/boost/exception/info.hpp:100:21: error: no match for ‘operator*’ in
‘*boost::exception_detail::type_info_((*(const std::type_info*
(*((&p)->boost::shared_ptr<T>::operator* [with T =
boost::exception_detail::error_info_base, typename
boost::detail::sp_dereference<T>::type = boost::exception_detail::error_info_base&
().boost::exception_detail::error_info_base::_vptr.error_info_base
0xfffffffffffffffffffffffffffffff8u)))).boost::exception_detail::type_info_::type_’
/usr/include/boost/exception/info.hpp:100:21: note: candidates are:
/usr/include/c++/4.6/complex:399:5: note: template<class _Tp> std::complex<_Tp>
std::operator*(const _Tp&, const std::complex<_Tp>&)
/usr/include/c++/4.6/complex:390:5: note: template<class _Tp> std::complex<_Tp>
std::operator*(const std::complex<_Tp>&, const _Tp&)
/usr/include/c++/4.6/complex:381:5: note: template<class _Tp> std::complex<_Tp>
std::operator*(const std::complex<_Tp>&, const std::complex<_Tp>&)
/usr/include/boost/exception/info.hpp:100:21: error: no match for ‘operator*’ in
‘*ti.boost::exception_detail::type_info_::type_’
/usr/include/boost/exception/info.hpp:100:21: note: candidates are:
/usr/include/c++/4.6/complex:399:5: note: template<class _Tp> std::complex<_Tp>
std::operator*(const _Tp&, const std::complex<_Tp>&)
/usr/include/c++/4.6/complex:390:5: note: template<class _Tp> std::complex<_Tp>
std::operator*(const std::complex<_Tp>&, const _Tp&)
/usr/include/c++/4.6/complex:381:5: note: template<class _Tp> std::complex<_Tp> 
std::operator*(const std::complex<_Tp>&, const std::complex<_Tp>&)

Answer 1

好的，我明白了。我遵循了here的说明，但以下似乎搞乱了安装：

/bootstrap.sh --exec-prefix=/usr --libdir=/usr/lib --includedir=/usr/include

（我注意到旧版本的boost在/ usr / include和/ usr / lib。这就是为什么我添加上面的选项。:(

相反，我简单地尝试了这个：

./bootstrap.sh
./b2
sudo ./b2 install

现在示例编译。

提升库在ubuntu上产生错误

1 个答案: