From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Sat, 12 Feb 2022 03:18:29 +0000 (+1100)
Subject: API BREAK: remove no longer used 'MAXFLOAT'
X-Git-Tag: 3.0.0~30^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=aeac3a2eec6b15e6f5992661db9dc65398df24b8;p=graphviz

API BREAK: remove no longer used 'MAXFLOAT'
---

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4e978cc2c..f998c4b9b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -72,6 +72,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   has been deprecated. Tools such as
   [Leak Sanitizer](https://clang.llvm.org/docs/LeakSanitizer.html) are a more
   effective modern way of diagnosing memory safety issues.
+- **Breaking**: Graphviz headers no longer define the constant `MAXFLOAT`. A
+  replacement is `FLT_MAX` in the C standard library’s float.h.
 - The Ming plugin that produced Shockwave files has been removed. This format
   was EOLed by Adobe in April 2019. #2160
 - CentOS 7 packages now include libmingle and the `mingle` program.
diff --git a/lib/common/arith.h b/lib/common/arith.h
index 264da8e69..44556cec5 100644
--- a/lib/common/arith.h
+++ b/lib/common/arith.h
@@ -43,10 +43,6 @@ extern "C" {
 #define MAXDOUBLE	1.7976931348623157e+308
 #endif
 
-#ifndef MAXFLOAT
-#define MAXFLOAT	((float)3.40282347e+38)  // exact value: 0x1.fffffep+127f
-#endif
-
 #ifdef BETWEEN
 #undef BETWEEN
 #endif
diff --git a/lib/sfio/sfhdr.h b/lib/sfio/sfhdr.h
index 53ad00b07..e425cf167 100644
--- a/lib/sfio/sfhdr.h
+++ b/lib/sfio/sfhdr.h
@@ -186,9 +186,6 @@ extern "C" {
 #define EINVAL	22
 #endif
 /* function to get the decimal point for local environment */
-#ifdef MAXFLOAT			/* we don't need these, so we zap them to avoid compiler warnings */
-#undef MAXFLOAT
-#endif
 #include	<locale.h>
 #define SFSETLOCALE(decimal,thousand) \
 	{ struct lconv*	lv; \