X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/2685767a6125c1620719c7de6234aedf41857b7e..962dd3329d51f1d18313a17eb0cb4695ee4421a0:/field.h

diff --git a/field.h b/field.h
index 87d3865..5a70649 100644
--- a/field.h
+++ b/field.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: field.h,v 1.2 2001/05/07 17:30:13 mdw Exp $
+ * $Id: field.h,v 1.3 2002/01/13 13:48:44 mdw Exp $
  *
  * Definitions for field arithmetic
  *
@@ -30,6 +30,9 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: field.h,v $
+ * Revision 1.3  2002/01/13 13:48:44  mdw
+ * Further progress.
+ *
  * Revision 1.2  2001/05/07 17:30:13  mdw
  * Add an internal-representation no-op function.
  *
@@ -67,6 +70,7 @@ typedef struct field_ops {
   mp *(*in)(field */*f*/, mp */*d*/, mp */*x*/);
   mp *(*out)(field */*f*/, mp */*d*/, mp */*x*/);
 
+  mp *(*neg)(field */*f*/, mp */*d*/, mp */*x*/);
   mp *(*add)(field */*f*/, mp */*d*/, mp */*x*/, mp */*y*/);
   mp *(*sub)(field */*f*/, mp */*d*/, mp */*x*/, mp */*y*/);
   mp *(*mul)(field */*f*/, mp */*d*/, mp */*x*/, mp */*y*/);
@@ -86,6 +90,7 @@ typedef struct field_ops {
 
 #define F_IN(f, d, x)		(f)->ops->in((f), (d), (x))
 #define F_OUT(f, d, x)		(f)->ops->out((f), (d), (x))
+#define F_NEG(f, d, x)		(f)->ops->neg((f), (d), (x))
 #define F_ADD(f, d, x, y)	(f)->ops->add((f), (d), (x), (y))
 #define F_SUB(f, d, x, y)	(f)->ops->sub((f), (d), (x), (y))
 #define F_MUL(f, d, x, y)	(f)->ops->mul((f), (d), (x), (y))