X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=flower%2Foffset.cc;h=67b97865e55ebe5f723fd2f717616257b72f9d48;hb=5b4b0d6e9a197e8f9eb085b7c2ad78b8be3e5cfc;hp=086147188253c81e5e35e8a30f219e3307e3a7ff;hpb=3ee551fa4f2a2c3736a06f9f85f29b9f7bd89818;p=lilypond.git

diff --git a/flower/offset.cc b/flower/offset.cc
index 0861471882..67b97865e5 100644
--- a/flower/offset.cc
+++ b/flower/offset.cc
@@ -3,7 +3,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1997--2007 Han-Wen Nienhuys <hanwen@xs4all.nl>
+  (c) 1997--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "offset.hh"
@@ -19,12 +19,6 @@ Offset::to_string () const
 }
 #endif
 
-bool
-isinf_b (Real r)
-{
-  return (fabs (r) > 1e20);
-}
-
 /*
   free bsd fix by John Galbraith
 */
@@ -33,7 +27,7 @@ Offset
 complex_multiply (Offset z1, Offset z2)
 {
   Offset z;
-  if (!isinf_b (z2[Y_AXIS]))
+  if (!isinf (z2[Y_AXIS]))
     {
       z[X_AXIS] = z1[X_AXIS] * z2[X_AXIS] - z1[Y_AXIS] * z2[Y_AXIS];
       z[Y_AXIS] = z1[X_AXIS] * z2[Y_AXIS] + z1[Y_AXIS] * z2[X_AXIS];
@@ -95,7 +89,7 @@ Offset::is_sane () const
   return !isnan (coordinate_a_[X_AXIS])
     && !isnan (coordinate_a_ [Y_AXIS])
     && !isinf (coordinate_a_[X_AXIS]) 
-    && !isnan (coordinate_a_[Y_AXIS]);
+    && !isinf (coordinate_a_[Y_AXIS]);
 }
 
 Offset
@@ -105,3 +99,9 @@ Offset::direction () const
   d /= length (); 
   return d;
 }
+
+Offset
+Offset::swapped () const
+{
+  return Offset (coordinate_a_[Y_AXIS], coordinate_a_[X_AXIS]);
+}