Removed some uses of printf in libbu++, I would like to get rid of all of them

some day, but I'm not in much of a rush, I just wanted to do a quick survey.

Also added the Formatter::flush special stream value, so now you can do a:
  sio << "hello" << sio.flush; and it'll flush output immediately.

I also tweaked a few things in the cachestore and cache so that they actually
throw exceptions and the like instead of just printing out some garbage.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/cache.h b/src/cache.h
index 4ae1aa8..f36c29b 100644
--- a/src/cache.h
+++ b/src/cache.h
@@ -165,9 +165,9 @@ namespace Bu
                         {
                                 if( i.getValue().iRefs > 0 )
                                 {
-                                        printf("Error?  iRefs=%d for key ", i.getValue().iRefs );
-                                        __tracer_format( i.getKey() );
-                                        printf("!\n");
+                                        // TODO: Throw an error in this case? iRefs != 0 for an
+                                        // object when the Cache is destroyed.
+                                        throw Bu::ExceptionBase("iRefs not zero.");
                                 }
                                 pCalc->onUnload(
                                         i.getValue().pData,