X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=cop.h;h=870225ca5ddee852b7e176ddcfbc8df24950ee38;hb=7e107e90b7bd52c7fb110ac98da6bb7ab38e8959;hp=fe0ca8a6416a8154ca4dab4d6f0170880921f6cf;hpb=f3548bdc4d2efd11e139d110e60764b9dae81319;p=p5sagit%2Fp5-mst-13.2.git

diff --git a/cop.h b/cop.h
index fe0ca8a..870225c 100644
--- a/cop.h
+++ b/cop.h
@@ -5,6 +5,11 @@
  *    You may distribute under the terms of either the GNU General Public
  *    License or the Artistic License, as specified in the README file.
  *
+ * Control ops (cops) are one of the three ops OP_NEXTSTATE, OP_DBSTATE,
+ * and OP_SETSTATE that (loosely speaking) separate statements. They hold
+ * imformation important for lexical state and error reporting. At run
+ * time, PL_curcop is set to point to the most recently executed cop,
+ * and thus can be used to determine our current state.
  */
 
 struct cop {