[PPL-devel] [GIT] ppl/ppl(floating_point): Added missing emptiness checks.

[Fabio Bossi]

Module: ppl/ppl
Branch: floating_point
Commit: b39ec7c81e536c991c43e395147ca92b8d2a4b44
URL:    http://www.cs.unipr.it/git/gitweb.cgi?p=ppl/ppl.git;a=commit;h=b39ec7c81e536c991c43e395147ca92b8d2a4b44

Author: Fabio Bossi <bossi at cs.unipr.it>
Date:   Wed Sep 29 14:27:43 2010 +0200

Added missing emptiness checks.

---

 src/BD_Shape.templates.hh |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/BD_Shape.templates.hh b/src/BD_Shape.templates.hh
index 57e0672..112047a 100644
--- a/src/BD_Shape.templates.hh
+++ b/src/BD_Shape.templates.hh
@@ -4503,13 +4503,15 @@ BD_Shape<T>
     // Set the upper bound.
     const N& u = dbm_0[i+1];
     if (!is_plus_infinity(u))
-      dest.restrict_upper(i, u.raw_value());
+      if (!dest.restrict_upper(i, u.raw_value()))
+        return;
 
     // Set the lower bound.
     const N& negated_l = dbm[i+1][0];
     if (!is_plus_infinity(negated_l)) {
       neg_assign_r(tmp, negated_l, ROUND_DOWN);
-      dest.restrict_lower(i, negated_l.raw_value());
+      if (!dest.restrict_lower(i, negated_l.raw_value()))
+        return;
     }
   }