add a new return code indicating nothing was done

diff --git a/src/livarot/LivarotDefs.h b/src/livarot/LivarotDefs.h
index bf1326338cad192280cb89caa48308c4d7fe06ac..49f954586058474feb1b9ec3f3f29ddaba37bf72 100644 (file)
--- a/src/livarot/LivarotDefs.h
+++ b/src/livarot/LivarotDefs.h
@@ -36,7 +36,8 @@ enum
   // despite the rounding sheme, this still happen with uber-complex graphs
   // note that coordinates are stored in double => double precision for the computation is not even
   // enough to get exact results (need quadruple precision, i think).
-  shape_input_err = 5          // the function was given an incorrect input (not a polygon, or not eulerian)
+  shape_input_err = 5,         // the function was given an incorrect input (not a polygon, or not eulerian)
+  shape_nothing_to_do = 6              // the function had nothing to do (zero offset, etc)
 };
 
 // return codes for the find function in the AVL tree (private)