[doc/sum.txt] Added TODO (since the description is a bit obsolete).

git-svn-id: svn://scm.gforge.inria.fr/svn/mpfr/branches/new-sum@9331 280ebfd0-de03-0410-8827-d642c229c3f4

1 files changed, 7 insertions, 0 deletions

diff --git a/doc/sum.txt b/doc/sum.txt
index 08feaf137..5a8201f8a 100644
--- a/doc/sum.txt
+++ b/doc/sum.txt
@@ -33,6 +33,13 @@ Additional details on:
 
 Let sq be the output precision.
 
+*** TODO ***
+The following is a bit obsolete. In particular the new helper function
+sum_raw (obtained from code refactoring for steps 3 to 6, and 8) should
+be introduced and described. Pre-rounding in (7) and rounding in (8)
+have been merged, and this [previously pre-rounding in (7)] is still
+done at the same time as sign handling with a single mpn operation.
+
 The general ideas of the algorithm:
 
 0. Handle the case n <= 1 separately (+0 for n = 0, mpfr_set for n = 1).