nitpicks

[lilypond.git] / flower / offset.cc

diff --git a/flower/offset.cc b/flower/offset.cc
index d6d62d44e5e898417d7f0bdb3823f7792259e7db..a0e87b58cf57984734386aabc3a6b3dc8ea99b7d 100644 (file)
--- a/flower/offset.cc
+++ b/flower/offset.cc
@@ -3,19 +3,18 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1997--2006 Han-Wen Nienhuys <hanwen@xs4all.nl>
 */
 
 #include "offset.hh"
 
-#include <cmath>
 
 #ifndef STANDALONE
-String
+string
 Offset::to_string () const
 {
-  String s;
-  s = String (" (") + ::to_string (coordinate_a_[X_AXIS]) + ", "
+  string s;
+  s = string (" (") + ::to_string (coordinate_a_[X_AXIS]) + ", "
     + ::to_string (coordinate_a_[Y_AXIS]) + ")";
   return s;
 }
@@ -82,5 +81,15 @@ Offset::arg () const
 Real
 Offset::length () const
 {
-  return sqrt (sqr (coordinate_a_[X_AXIS]) + sqr (coordinate_a_[Y_AXIS]));
+  return sqrt (sqr (coordinate_a_[X_AXIS])
+                   + sqr (coordinate_a_[Y_AXIS]));
+}
+
+bool
+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]);
 }