[Boost-users] Q: boost::format : can formatting variable arguments lists be done ?

From: Dan Dimerman (dimerman_at_[hidden])
Date: 2004-12-22 05:23:59

Hello,

Currently I have a piece of code that logs messages much in the same way 
as printf() :

void	MyLogger::dump( const std::string& format, va_list& list )
{
        const unsigned short buf_size = 1024;
        char buffer[ buf_size ]; ::memset( buffer, 0, buf_size );
        ::_vsnprintf( buffer, buf_size - 1, format.c_str(), list);

        /.../
}

After many headaches (and crashes) due to mistaken format specification 
fields, I thought to upgrade my class's API to use boost::format, but 
alas, I couldn't find the way to feed the format object from a va_list.
Is there a way?

thanks in advance...

Dan.