【发布时间】:2012-09-11 07:17:47
【问题描述】:
有人能告诉我为什么这不能编译吗?我基本上从 2007 年 Kholkoff (http://lists.boost.org/Archives/boost/2007/04/120339.php) 的示例中复制了它,关于超时套接字中的 reads():
void CClient::setResult(boost::optional<boost::system::error_code>*
a,boost::system::error_code b)
{
*a = b;
}
我像这样绑定()它:
timer.async_wait(boost::bind(&CClient::setResult, &timer_result, _1));
gcc 打印的错误对我来说是不可读的:
static assertion failed: WaitHandler type requirements not met remote_server line 499, external location: /usr/include/boost/asio/basic_deadline_timer.hpp C/C++ Problem
no match for call to ‘(boost::_bi::bind_t<boost::_bi::unspecified, void (CClient::*)(boost::optional<boost::system::error_code>*, boost::system::error_code), boost::_bi::list2<boost::_bi::value<boost::optional<boost::system::error_code>*>, boost::arg<1> > >) (const boost::system::error_code&)’ remote_server line 499, external location: /usr/include/boost/asio/basic_deadline_timer.hpp C/C++ Problem
‘void (CClient::*)(boost::optional<boost::system::error_code>*, boost::system::error_code)’ is not a class, struct, or union type remote_server line 69, external location: /usr/include/boost/bind/bind.hpp C/C++ Problem
make: *** No rule to make target `all'. C/C++ Problem
make: *** [src/CClient.o] Error 1 remote_server C/C++ Problem
required from ‘class boost::_bi::bind_t<boost::_bi::unspecified, void (CClient::*)(boost::optional<boost::system::error_code>*, boost::system::error_code), boost::_bi::list2<boost::_bi::value<boost::optional<boost::system::error_code>*>, boost::arg<1> > >’ remote_server line 15, external location: /usr/include/boost/bind/bind_template.hpp C/C++ Problem
required from here CClient.cpp /remote_server/src line 93 C/C++ Problem
【问题讨论】:
-
请像使用缩进四个空格的代码一样格式化错误输出。这使输出变得难以阅读并且变得更糟。
标签: c++ boost boost-asio boost-bind