From 1cc82bbb8b23f79b7f3097e8143fc2f705237ace Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
Date: Wed, 26 Dec 2018 17:27:00 +0100
Subject: eccdata: Check that table size is at least 2.

Intended to silence warning from the clang static analyzer.
---
 eccdata.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'eccdata.c')

diff --git a/eccdata.c b/eccdata.c
index 51ecde35..8aa57e06 100644
--- a/eccdata.c
+++ b/eccdata.c
@@ -650,6 +650,12 @@ ecc_pippenger_precompute (struct ecc_curve *ecc, unsigned k, unsigned c)
   unsigned M = ecc_table_size (ecc->bit_size, k, c);
   unsigned i, j;
 
+  if (M < 2)
+    {
+      fprintf (stderr, "Invalid parameters, implies M = %u\n", M);
+      exit (EXIT_FAILURE);
+    }
+
   if (M == ecc_table_size (ecc->bit_size, k-1, c))
     fprintf(stderr,
 	    "warn: Parameters k = %u, c = %d are suboptimal, could use smaller k\n",
-- 
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