# HG changeset patch
# User mas01cr
# Date 1191330960 0
# Node ID 94b6fb73d2ee3c98ec2c66d08fe0532434bc96e5
# Parent  48aaee766d8a6e323fd6361473630708ae4eb4ab
Hack the right answer out of the L2Norm offset computation.

We need to subtract off the number vectors that we've just added, as
dbH->length has already been updated to reflect them.

diff -r 48aaee766d8a -r 94b6fb73d2ee audioDB.cpp
--- a/audioDB.cpp	Tue Oct 02 13:14:37 2007 +0000
+++ b/audioDB.cpp	Tue Oct 02 13:16:00 2007 +0000
@@ -2453,10 +2453,15 @@
     X+=dim;
   }
   unsigned offset;
-  if(append)
-    offset=dbH->length/(dbH->dim*sizeof(double)); // number of vectors
-  else
+  if(append) {
+    // FIXME: a hack, a very palpable hack: the vectors have already
+    // been inserted, and dbH->length has already been updated.  We
+    // need to subtract off again the number of vectors that we've
+    // inserted this time...
+    offset=(dbH->length/(dbH->dim*sizeof(double)))-n; // number of vectors
+  } else {
     offset=0;
+  }
   memcpy(l2normTable+offset, l2buf, n*sizeof(double));
   if(l2buf)
     delete[] l2buf;