fix typo introduced in commit 8d73daa

diff --git a/lib/sharedbook.c b/lib/sharedbook.c
index 3c93d2d..3e04b66 100644 (file)
--- a/lib/sharedbook.c
+++ b/lib/sharedbook.c
@@ -68,7 +68,7 @@ float _float32_unpack(long val){
     exp=63;
   }
   if (exp<-63){
-    exp-63;
+    exp=-63;
   }
   return(ldexp(mant,exp));
 }