X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?p=moebius2.git;a=blobdiff_plain;f=mgraph.h;h=2ac57c7f6e7b71e333a9190c4653481a81a4c838;hp=7f2ab4397ad747ea54e95901d0f093eb71f42d1a;hb=e7355cdc61d082bc1d25a4d460736680e8d1dba2;hpb=c9f085069bc4e555689dffedbfa08af250772f2a

diff --git a/mgraph.h b/mgraph.h
index 7f2ab43..2ac57c7 100644
--- a/mgraph.h
+++ b/mgraph.h
@@ -89,6 +89,11 @@
 #define V6 6
 #define V3 3
 
+
+/* Loop constructors are macros of the form
+ *    LOOP(v,zero,n, precomp)
+ * which work much like this one:
+ */
 #define INNER(v,zero,n, precomp)  \
   for ((v)=(zero); precomp, (v)<(n); (v)++)