From ce1605aa9008d391e280dfc9a7954e06c4c8af5d Mon Sep 17 00:00:00 2001
From: Viktor Szakats <vszakats@users.noreply.github.com>
Date: Sat, 8 Aug 2015 13:32:27 +0200
Subject: [PATCH] fe.c: silence warning

using similar technique already used in line 166.

MSVC warning is:
warning C4146: unary minus operator applied to unsigned type, result still unsigned
---
 src/fe.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/fe.c b/src/fe.c
index 448e3e9..33ffa23 100644
--- a/src/fe.c
+++ b/src/fe.c
@@ -225,7 +225,7 @@ void fe_cswap(fe f,fe g,unsigned int b) {
     int32_t x7 = f7 ^ g7;
     int32_t x8 = f8 ^ g8;
     int32_t x9 = f9 ^ g9;
-    b = -b;
+    b = (unsigned int) (- (int) b); /* silence warning */
     x0 &= b;
     x1 &= b;
     x2 &= b;