[Boost-users] [logging] Milliseconds not logged on Windows

From: Allen Cronce (allenslists_at_[hidden])
Date: 2008-08-28 12:36:53

Hi all,

I'm using the latest boost logging library from the sandbox, in  
conjunction with boost 1.35.0. I'm seeing problems with millisecond  
strings in the log under Windows VS2005.

The following formatter works fine under posix (specifically, Mac OS X):

        g_log_dbg()->writer().add_formatter( formatter::time("$hh:$mm.$ss. 
$mili ") );

Here's some sample output:

        19:33.54.4196908 hello, world
        19:33.54.4197788 this is so cool (but only in the debug build) 1

But the same code running under Windows always outputs a consistent,  
bogus millisecond value:

        18:41.47.-858993460 hello, world
        18:41.47.-858993460 this is so cool (but only in the debug build) 1

Looks like a sign extension problem. But I have to admit that I have  
not invested the time to determine whether this is a bug in the  
logging library proper, or a problem with the underlying boost 1.35.0  
precision time and string utilities used by the logging library.

Regardless I can probably live without milliseconds in my Windows  
logs, so I'll work around it with a platform conditional that  
specifies an alternate format string under Windows.

Best,
--
Allen Cronce