_vsnprintf and Linux (Windows->Linux Conversion)

Okay, so...
I'm trying to convert some Windows C++ code to Linux. Its a big project that I'm tackling one C++ file at a time (to compile).

Anyway, my new error is this:

error: '_vsnprintf' was not declared in this scope

So, after a small bit of research, I think that this function may be in the Windows API.
I can't post the URL, so the best I can give you is
http://msdn (dot) microsoft (dot) com
/en-us/library/1kt27hek(VS.80).aspx


Now, I was wondering if there was a Linux analog, or if I could create a header file or otherwise to import the needed code (found in the link, though it doesn't seem like the right code, and why would Microsoft publish such code anyway?) or if I could just straight up place the code that makes it work in the C++ file (which I doubt since it is likely huge)

Probably the same, without the leading underscore.

Pardon the late reply, I just realized I should be saying what did and doesn't work, for other people to know.

Yes, this worked fine. I dropped the leading underscore and everything worked out OK.