From: Anatol Belski <ab@php.net>
Date: Fri, 28 Oct 2016 18:49:12 +0000 (+0200)
Subject: extend info to float related constants
X-Git-Tag: php-7.2.0alpha1~1019
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=cc81971e9e399d04ea602c67c85435f7f5fa9a7c;p=php

extend info to float related constants
---

diff --git a/UPGRADING b/UPGRADING
index 49428f07e0..ada82c886d 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -123,10 +123,12 @@ PHP 7.2 UPGRADE NOTES
 ========================================
 
 - Core:
-  . PHP_FLOAT_DIG
-  . PHP_FLOAT_EPSILON
-  . PHP_FLOAT_MIN
-  . PHP_FLOAT_MAX
+  . PHP_FLOAT_DIG     number of decimal digits, that can be rounded into a
+                      float and back without precision loss
+  . PHP_FLOAT_EPSILON smallest representable positive number x, so then
+                      x + 1.0 != 1.0
+  . PHP_FLOAT_MIN     max representable float number
+  . PHP_FLOAT_MAX     min representable float number
 
 - GD:
   . IMG_EFFECT_MULTIPLY