From 5bdb47791aabb732b8ebae8ecb73acea8f7d2ed3 Mon Sep 17 00:00:00 2001
From: Ilia Alshanetsky <iliaa@php.net>
Date: Fri, 19 Nov 2010 16:36:10 +0000
Subject: [PATCH] Fixed bug #47168 (printf of floating point variable prints
 maximum of 40 decimal places).

---
 ext/standard/formatted_print.c           |  2 +-
 ext/standard/tests/strings/bug47168.phpt | 12 ++++++++++++
 2 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 ext/standard/tests/strings/bug47168.phpt

diff --git a/ext/standard/formatted_print.c b/ext/standard/formatted_print.c
index e5359461b3..2217c58dbe 100644
--- a/ext/standard/formatted_print.c
+++ b/ext/standard/formatted_print.c
@@ -41,7 +41,7 @@
 #define FLOAT_DIGITS 6
 #define FLOAT_PRECISION 6
 #define MAX_FLOAT_DIGITS 38
-#define MAX_FLOAT_PRECISION 40
+#define MAX_FLOAT_PRECISION 53
 
 #if 0
 /* trick to control varargs functions through cpp */
diff --git a/ext/standard/tests/strings/bug47168.phpt b/ext/standard/tests/strings/bug47168.phpt
new file mode 100644
index 0000000000..4cca362569
--- /dev/null
+++ b/ext/standard/tests/strings/bug47168.phpt
@@ -0,0 +1,12 @@
+--TEST--
+Bug #47168 (printf of floating point variable prints maximum of 40 decimal places)
+--FILE--
+<?php
+
+$dyadic = 0.00000000000045474735088646411895751953125;
+var_dump(printf ("%1.41f\n",unserialize(serialize($dyadic))));
+
+?>
+--EXPECT--
+0.00000000000045474735088646411895751953125
+int(44)
-- 
2.40.0