factorial: Fix usage message to fit in with conventions.

[u/mdw/catacomb] / share.h

diff --git a/share.h b/share.h
index 9683c07..d126983 100644 (file)
--- a/share.h
+++ b/share.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: share.h,v 1.4 2004/04/08 01:36:15 mdw Exp $
+ * $Id$
  *
  * Shamir's secret sharing
  *
@@ -134,6 +134,17 @@ extern void share_mkshares(share */*s*/, grand */*r*/, mp */*n*/);
 
 extern mp *share_get(share */*s*/, mp */*d*/, unsigned /*x*/);
 
+/* --- @share_addedp@ --- *
+ *
+ * Arguments:  @share *s@ = pointer to sharing context
+ *             @unsigned x@ = which share number to check
+ *
+ * Returns:    Nonzero if share @x@ has been added already, zero if it
+ *             hasn't.
+ */
+
+extern int share_addedp(share */*s*/, unsigned /*x*/);
+
 /* --- @share_add@ --- *
  *
  * Arguments:  @share *s@ = pointer to sharing context