A much stripped down version of `PV_transForm' (accompanied by `copy_pixel').

[libopano.git] / src / utils_math.h

diff --git a/src/utils_math.h b/src/utils_math.h
index 08e2831..9f411dc 100644 (file)
--- a/src/utils_math.h
+++ b/src/utils_math.h
@@ -16,5 +16,9 @@
  *  Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
  **/
 
+#ifndef UTILS_MATH_H
+#define UTILS_MATH_H 1
+
 int utils_sqrt2 (int x1, int x2);
-int utils_atan2 (int y, int x);
+
+#endif /* UTILS_MATH_H */