Use the new trial division equipment in pfilt. This gives a 10%

[u/mdw/catacomb] / limlee.c

diff --git a/limlee.c b/limlee.c
index dd03866..45f579d 100644 (file)
--- a/limlee.c
+++ b/limlee.c
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: limlee.c,v 1.3 2000/07/29 09:58:32 mdw Exp $
+ * $Id: limlee.c,v 1.4 2000/08/15 21:45:05 mdw Exp $
  *
  * Generate Lim-Lee primes
  *
@@ -30,6 +30,10 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: limlee.c,v $
+ * Revision 1.4  2000/08/15 21:45:05  mdw
+ * Use the new trial division equipment in pfilt.  This gives a 10%
+ * performance improvement in dsa-gen.t.
+ *
  * Revision 1.3  2000/07/29 09:58:32  mdw
  * (limlee): Bug fix.  Old versions didn't set the filter step if @ql@ was
  * an exact divisor of @pl@.
@@ -168,7 +172,6 @@ mp *limlee(const char *name, mp *d, mp *newp,
 
   /* --- Now allocate the working memory --- */
 
-  primorial_setup();
   v = xmalloc(mm * sizeof(mp *));
   c = xmalloc(mm);
 
@@ -226,20 +229,18 @@ again:
 
     {
       mp *p = mpmul_done(&mmul);
-      mp *g = newp;
+      mp *g;
       int rc;
 
       /* --- Check for small factors --- */
 
       p = mp_lsl(p, p, 1);
       p = mp_add(p, p, MP_ONE);
-      mp_gcd(&g, 0, 0, p, primorial);
-      if (MP_CMP(g, !=, MP_ONE)) {
-       mp_drop(g);
+      rc = pfilt_smallfactor(p);
+      if (rc == PGEN_FAIL) {
        mp_drop(p);
        continue;
       }
-      mp_drop(g);
 
       /* --- Send an event out --- */