Boost.Log問題

Question

我有一些問題，Boost.Log：這是一個snipet：

#include <boost/date_time/posix_time/posix_time_types.hpp> 
#include <boost/log/core.hpp> 
#include <boost/log/trivial.hpp> 
#include <boost/log/expressions.hpp> 
#include <boost/log/sinks/text_file_backend.hpp> 
#include <boost/log/utility/setup/file.hpp> 

int main() 
{ 
    namespace logging = boost::log; 
    namespace src = boost::log::sources; 
    namespace expr = boost::log::expressions; 
    namespace keywords = boost::log::keywords; 
    namespace sinks = boost::log::sinks; 

    logging::add_file_log (
     keywords::file_name = "sample_%N.log", 
     keywords::rotation_size = 10 * 1024 * 1024, 
     keywords::time_based_rotation = sinks::file::rotation_at_time_point(0, 0, 0), 
     keywords::format = "%TimeStamp% [%Uptime%] (%LineID%) <%Severity%>: %Message%" 
    ); 

    BOOST_LOG_TRIVIAL(trace) << "Message"; 

    return 0; 

} 

我有以下的輸出：

[]() <>: Message 

似乎格式不對工作......我是否錯了？

Answer 1

雖然你的問題是不完整我的猜測是，你缺少的屬性定義，即嘗試建立日誌文件之後將是這樣的：

logging::add_common_attributes();