X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/6775a491555123da607656e31e0bcdfd70099aa0..HEAD:/math/ec-raw.h

diff --git a/math/ec-raw.h b/math/ec-raw.h
index 0ceadd63..df8d1ab4 100644
--- a/math/ec-raw.h
+++ b/math/ec-raw.h
@@ -74,6 +74,9 @@
  *		@EC_EXPLY@ is set, then an explicit %$y$%-coordinate is
  *		output in full.  Otherwise the %$y$%-coordinate is
  *		suppressed.
+ *
+ *		Returns failure (@-1@) if the flags are invalid, or if there
+ *		isn't enough space in the output buffer.
  */
 
 extern int ec_ec2osp(ec_curve */*c*/, unsigned /*f*/,