From b53994fd0d5af935335dce665c94013491fdefcd Mon Sep 17 00:00:00 2001
From: vitaut <victor.zverovich@gmail.com>
Date: Fri, 20 Nov 2015 07:49:29 -0800
Subject: [PATCH] Suppress a warning

---
 format.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/format.h b/format.h
index 6dec3dce..2dd3fe49 100644
--- a/format.h
+++ b/format.h
@@ -608,7 +608,8 @@ inline int getsign(double x) {
     _ecvt_s(buffer, sizeof(buffer), x, 0, &dec, &sign);
     return sign;
   }
-  ecvt(x, 0, &dec, &sign);
+  char *result = ecvt(x, 0, &dec, &sign);
+  (void)result;  // Suppress warning about unused return value of ecvt.
   return sign;
 }