From: Loup Vaillant <loup@loup-vaillant.fr>
Date: Sun, 28 Jan 2018 23:36:24 +0000 (+0100)
Subject: Fixed small undefined behaviour in tests
X-Git-Url: https://git.codecow.com/?a=commitdiff_plain;h=7b4145adb20fa43307b0eb9f5bca397a2d916e63;p=Monocypher.git

Fixed small undefined behaviour in tests

Apparently we cannot memcmp() null pointers, even when the size is zero.
---

diff --git a/tests/test.c b/tests/test.c
index c140109..9830591 100644
--- a/tests/test.c
+++ b/tests/test.c
@@ -64,7 +64,9 @@ static int test(void (*f)(const vector[], vector*),
         expected.buf  = vectors[idx+nb_inputs];
         expected.size = sizes  [idx+nb_inputs];
         status |= out.size - expected.size;
-        status |= memcmp(out.buf, expected.buf, out.size);
+        if (out.size != 0) {
+            status |= memcmp(out.buf, expected.buf, out.size);
+        }
         free(out.buf);
         idx += nb_inputs + 1;
         nb_tests++;