Add mp version of MPX_BITS.

[u/mdw/catacomb] / mp.h

diff --git a/mp.h b/mp.h
index 72aa675..13bcd3d 100644 (file)
--- a/mp.h
+++ b/mp.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: mp.h,v 1.2 1999/11/17 18:02:16 mdw Exp $
+ * $Id: mp.h,v 1.4 1999/11/21 22:13:02 mdw Exp $
  *
  * Simple multiprecision arithmetic
  *
@@ -30,6 +30,12 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: mp.h,v $
+ * Revision 1.4  1999/11/21 22:13:02  mdw
+ * Add mp version of MPX_BITS.
+ *
+ * Revision 1.3  1999/11/19 13:19:14  mdw
+ * Fix const annotation.
+ *
  * Revision 1.2  1999/11/17 18:02:16  mdw
  * New multiprecision integer arithmetic suite.
  *
@@ -396,7 +402,7 @@ extern void mp_minimize(mp */*m*/);
 extern void mp_scan(mpscan */*sc*/, const mp */*m*/);
 
 #define MP_SCAN(sc, m) do {                                            \
-  mp *_mm = (m);                                                       \
+  const mp *_mm = (m);                                                 \
   mpscan *_sc = (sc);                                                  \
   MPSCAN_INITX(_sc, _mm->v, _mm->vl);                                  \
 } while (0)
@@ -421,7 +427,19 @@ extern void mp_scan(mpscan */*sc*/, const mp */*m*/);
  *             integer.
  */
 
-extern size_t mp_octets(const mp *m);
+extern size_t mp_octets(const mp */*m*/);
+
+/* --- @mp_bits@ --- *
+ *
+ * Arguments:  @const mp *m@ = a multiprecision integer
+ *
+ * Returns:    The number of bits required to represent @m@.
+ *
+ * Use:                Calculates the external storage required for a multiprecision
+ *             integer.
+ */
+
+extern unsigned long mp_bits(const mp */*m*/);
 
 /* --- @mp_loadl@ --- *
  *