From: Anatol Belski <ab@php.net>
Date: Mon, 1 Sep 2014 13:33:40 +0000 (+0200)
Subject: fix acosh for vs2012 and earlier
X-Git-Tag: PRE_PHP7_REMOVALS~174
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f4ed876db13db1bf0436b59c8f4f5d9298fd8b51;p=php

fix acosh for vs2012 and earlier
---

diff --git a/ext/standard/math.c b/ext/standard/math.c
index 665822c035..c957ca4698 100644
--- a/ext/standard/math.c
+++ b/ext/standard/math.c
@@ -240,7 +240,15 @@ static double php_acosh(double x)
 #ifdef HAVE_ACOSH
 	return(acosh(x));
 #else
+# ifdef _WIN64
+	if (x >= 1) {
+		return log(x + sqrt(x * x - 1));
+	} else {
+		return (DBL_MAX+DBL_MAX)-(DBL_MAX+DBL_MAX);
+	}
+# else
 	return(log(x + sqrt(x * x - 1)));
+# endif
 #endif
 }
 /* }}} */