tree 57f82fc4d43218be6818d8448215050348c3d255
parent 1aff63b114d0ca329d6066d9d9d5ce002dbf9f59
author Yann Collet <cyan@fb.com> 1525826593 -0700
committer Yann Collet <cyan@fb.com> 1525826593 -0700

implemented fractional bit cost evaluation

for FSE symbols.

While it seems to work, the gains are negligible compared to rough maxNbBits evaluation.
There are even a few losses sometimes, that still need to be explained.
Furthermode, there are still cases where btlazy2 does a better job than btopt,
which seems rather strange too.