From 7e1c65dccdd7fe20e931a06eee37586cf1f534af Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 29 Mar 2017 09:47:42 +0000
Subject: vsnprintf.c: prefix with precision

* vsnprintf.c (BSD_vfprintf): sign and hex-prefix should not be
  counted in precision.  [ruby-dev:47714] [Bug #8916]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58210 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 vsnprintf.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

(limited to 'vsnprintf.c')

diff --git a/vsnprintf.c b/vsnprintf.c
index 9a4f37abe0..f5652e7cec 100644
--- a/vsnprintf.c
+++ b/vsnprintf.c
@@ -1119,11 +1119,11 @@ number:			if ((dprec = prec) >= 0)
 		 */
 		fieldsz = size;
 long_len:
+		realsz = dprec > fieldsz ? dprec : fieldsz;
 		if (sign)
-			fieldsz++;
+			realsz++;
 		if (flags & HEXPREFIX)
-			fieldsz += 2;
-		realsz = dprec > fieldsz ? dprec : fieldsz;
+			realsz += 2;
 
 		/* right-adjusting blank padding */
 		if ((flags & (LADJUST|ZEROPAD)) == 0)
@@ -1145,10 +1145,6 @@ long_len:
 
 		/* leading zeroes from decimal precision */
 		PAD_L(dprec - fieldsz, zeroes);
-		if (sign)
-			fieldsz--;
-		if (flags & HEXPREFIX)
-			fieldsz -= 2;
 
 		/* the string or number proper */
 #ifdef FLOATING_POINT
-- 
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