rand/lcrand.c, rand/rand.c: Replace dynamic assertions with static ones.

[catacomb] / rand / rand.c

diff --git a/rand/rand.c b/rand/rand.c
index aa3fb45..5cca087 100644 (file)
--- a/rand/rand.c
+++ b/rand/rand.c
@@ -161,8 +161,16 @@ CPU_DISPATCH(static, return, int, quick, (rand_pool *r), (r),
 
 static int trivial_quick(rand_pool *r) { return (-1); }
 
+#if CPUFAM_X86 || CPUFAM_AMD64
+extern int rand_quick_x86ish_rdrand(rand_pool */*r*/);
+#endif
+
 static quick__functype *pick_quick(void)
 {
+#if CPUFAM_X86 || CPUFAM_AMD64
+  DISPATCH_PICK_COND(rand_quick, rand_quick_x86ish_rdrand,
+                    cpu_feature_p(CPUFEAT_X86_RDRAND));
+#endif
   DISPATCH_PICK_FALLBACK(rand_quick, trivial_quick);
 }
 
@@ -243,9 +251,7 @@ void rand_add(rand_pool *r, const void *p, size_t sz, unsigned goodbits)
   const octet *c = p;
   int i, rot;
 
-#if RAND_POOLSZ != 128
-#  error Polynomial in rand_add is out of date.  Fix it.
-#endif
+  STATIC_ASSERT(RAND_POOLSZ == 128, "Polynomial doesn't match pool size");
 
   RAND_RESOLVE(r);