From e9c4d388c966c11b45d5d33883afa860b9656c4c Mon Sep 17 00:00:00 2001
From: bakpakin <calsrose@gmail.com>
Date: Wed, 31 Jan 2018 17:47:59 -0500
Subject: [PATCH] Ignore one ulp errors in printing reals.

---
 src/core/string.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/core/string.c b/src/core/string.c
index 6ddaa99b..bcec0216 100644
--- a/src/core/string.c
+++ b/src/core/string.c
@@ -106,7 +106,8 @@ const uint8_t *dst_cstring(const char *str) {
 #define DST_BUFSIZE 36
 
 static int32_t real_to_string_impl(uint8_t *buf, double x) {
-    int count = snprintf((char *) buf, DST_BUFSIZE, "%.17g", x);
+    /* Use 16 decimal places to ignore one ulp errors for now */
+    int count = snprintf((char *) buf, DST_BUFSIZE, "%.16g", x);
     return (int32_t) count;
 }