From: mdw <mdw>
Date: Sat, 16 Jun 2001 12:57:43 +0000 (+0000)
Subject: Move the @mpmont_factor@ structure and rename it now that it's used for
X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/commitdiff_plain/3bc0a0fe99df4fe55f702045d2c0ea9a5c07f3d8

Move the @mpmont_factor@ structure and rename it now that it's used for
Barrett simultaneous exponentiation too.
---

diff --git a/mp.h b/mp.h
index dcf4349..71092fd 100644
--- a/mp.h
+++ b/mp.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: mp.h,v 1.11 2001/04/03 19:36:05 mdw Exp $
+ * $Id: mp.h,v 1.12 2001/06/16 12:57:43 mdw Exp $
  *
  * Simple multiprecision arithmetic
  *
@@ -30,6 +30,10 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: mp.h,v $
+ * Revision 1.12  2001/06/16 12:57:43  mdw
+ * Move the @mpmont_factor@ structure and rename it now that it's used for
+ * Barrett simultaneous exponentiation too.
+ *
  * Revision 1.11  2001/04/03 19:36:05  mdw
  * Add some simple bitwise operations so that Perl can use them.
  *
@@ -98,19 +102,31 @@
 
 /*----- Data structures ---------------------------------------------------*/
 
+/* --- A multiprecision integer --- */
+
 typedef struct mp {
-  mpw *v, *vl;
-  size_t sz;
-  mparena *a;
-  unsigned f;
-  unsigned ref;
+  mpw *v, *vl;				/* Vector of digits, current limit */
+  size_t sz;				/* Size of digit buffer in words */
+  mparena *a;				/* Arena for buffer allocation */
+  unsigned f;				/* Flags (see below) */
+  unsigned ref;				/* Reference counter */
 } mp;
 
-#define MP_NEG 1u
-#define MP_BURN 2u
-#define MP_CONST 4u
-#define MP_UNDEF 8u
-#define MP_DESTROYED 16u
+#define MP_NEG 1u			/* Negative (signed magnitude) */
+#define MP_BURN 2u			/* Secret (viral flag) */
+#define MP_CONST 4u			/* Uses strange memory allocation */
+#define MP_UNDEF 8u			/* Contains nothing interesting */
+#define MP_DESTROYED 16u		/* Has been destroyed */
+
+/* --- A factor for simultaneous exponentation --- *
+ *
+ * Used by the Montgomery and Barrett exponentiators.
+ */
+
+typedef struct mp_expfactor {
+  mp *base;
+  mp *exp;
+} mp_expfactor;
 
 /*----- Useful constants --------------------------------------------------*/