我正在尝试使用Boost日志库,我想为输出添加时间戳.我从
this example开始,但遇到编译错误.我复制的代码完全如同例子,并将init()函数改为第二个(example_tutorial_formatters_stream_date_time).现在我有以下编译错误：
$g++ -Wall -Wextra -O0 -g -isystem /proj/cudbdm/tools/external/boost/inst_1_54_0_cxx11/include -c main.cpp -o main.o In file included from /proj/cudbdm/tools/external/boost/inst_1_54_0_cxx11/include/boost/log/expressions/formatters.hpp:23:0,from /proj/cudbdm/tools/external/boost/inst_1_54_0_cxx11/include/boost/log/expressions.hpp:26,from main.cpp:109: /proj/cudbdm/tools/external/boost/inst_1_54_0_cxx11/include/boost/log/expressions/formatters/date_time.hpp: In instantiation of 'boost::log::v2s_mt_posix::expressions::format_date_time_terminal<T,FallbackPolicyT,CharT>::format_date_time_terminal(const boost::log::v2s_mt_posix::attribute_name&,const fallback_policy&,const string_type&) [with T = boost::posix_time::ptime; FallbackPolicyT = boost::log::v2s_mt_posix::fallback_to_none; CharT = char; boost::log::v2s_mt_posix::expressions::format_date_time_terminal<T,CharT>::fallback_policy = boost::log::v2s_mt_posix::fallback_to_none; boost::log::v2s_mt_posix::expressions::format_date_time_terminal<T,CharT>::string_type = std::basic_string<char>]': /proj/cudbdm/tools/external/boost/inst_1_54_0_cxx11/include/boost/log/expressions/formatters/date_time.hpp:229:94: required from 'boost::log::v2s_mt_posix::expressions::format_date_time_actor<AttributeValueT,boost::log::v2s_mt_posix::fallback_to_none,CharT> boost::log::v2s_mt_posix::expressions::format_date_time(const boost::log::v2s_mt_posix::attribute_name&,const CharT*) [with AttributeValueT = boost::posix_time::ptime; CharT = char]' main.cpp:156:103: required from here /proj/cudbdm/tools/external/boost/inst_1_54_0_cxx11/include/boost/log/expressions/formatters/date_time.hpp:94:68: error: incomplete type 'boost::log::v2s_mt_posix::expressions::format_date_time_terminal<boost::posix_time::ptime,char>::formatter_generator {aka boost::log::v2s_mt_posix::expressions::aux::date_time_formatter_generator_traits<boost::posix_time::ptime,char,void>}' used in nested name specifier m_name(name),m_formatter(formatter_generator::parse(format)),m_visitor_invoker(fallback) ^
我尝试使用gcc 4.7.2和4.8.1,带有和不带有-std = c 11标志,但每次都得到相同的结果.似乎错误是在Boost库,这对我来说很奇怪,因为即使官方的例子也没有编译.
