From 24c7399ccb332172afb89848570f9f9e66e645e2 Mon Sep 17 00:00:00 2001
From: pur3mail <pur3mail@46de1608-0681-11de-b321-f573fdaff03e>
Date: Mon, 22 Aug 2011 07:27:54 +0000
Subject: [PATCH]  Version 0.30 :  Rlyeh Mario's patch for Math Functions on
 VC++

---
 TinyJS.cpp               |  1 +
 TinyJS_MathFunctions.cpp | 31 ++++++++++++++++++++++++++++++-
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/TinyJS.cpp b/TinyJS.cpp
index 17cf4e2..99f0c64 100755
--- a/TinyJS.cpp
+++ b/TinyJS.cpp
@@ -94,6 +94,7 @@
                    Added shift operators
    Version 0.29 :  Added new object via functions
                    Fixed getString() for double on some platforms
+   Version 0.30 :  Rlyeh Mario's patch for Math Functions on VC++
 
     NOTE:
           Constructing an array with an initial length 'Array(5)' doesn't work
diff --git a/TinyJS_MathFunctions.cpp b/TinyJS_MathFunctions.cpp
index 4bd5023..ea5ef36 100755
--- a/TinyJS_MathFunctions.cpp
+++ b/TinyJS_MathFunctions.cpp
@@ -14,7 +14,7 @@
 
 using namespace std;
 
-#define k_E                 exp(1)
+#define k_E                 exp(1.0)
 #define k_PI                3.1415926535897932384626433832795
 
 #define F_ABS(a)            ((a)>=0 ? (a) : (-(a)))
@@ -32,6 +32,35 @@ using namespace std;
 #define scReturnInt(a)      ( c->getReturnVar()->setInt(a) )
 #define scReturnDouble(a)   ( c->getReturnVar()->setDouble(a) )  
 
+#ifdef _MSC_VER
+namespace
+{
+    double asinh( const double &value )
+    {
+        double returned;
+
+        if(value>0)
+        returned = log(value + sqrt(value * value + 1));
+        else
+        returned = -log(-value + sqrt(value * value + 1));
+
+        return(returned);
+    }
+
+    double acosh( const double &value )
+    {
+        double returned;
+
+        if(value>0)
+        returned = log(value + sqrt(value * value - 1));
+        else
+        returned = -log(-value + sqrt(value * value - 1));
+
+        return(returned);
+    }
+}
+#endif
+
 //Math.abs(x) - returns absolute of given value
 void scMathAbs(CScriptVar *c, void *userdata) {
     if ( scIsInt("a") ) {