From 1bf99b5fd26d142106d7a097900ebfe8a6279ad4 Mon Sep 17 00:00:00 2001
From: Tycho <work.tycho+git@gmail.com>
Date: Sun, 9 Mar 2014 11:47:22 -0700
Subject: Be more parinoid about int sizes

---
 src/Defines.h         |  3 ++-
 src/Globals.h         | 18 ++++++++++++++++--
 src/MersenneTwister.h |  2 --
 3 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/src/Defines.h b/src/Defines.h
index fd240c91a..592b9434a 100644
--- a/src/Defines.h
+++ b/src/Defines.h
@@ -2,6 +2,7 @@
 #pragma once
 
 #include "ChatColor.h"
+#include <limits>
 
 
 
@@ -469,7 +470,7 @@ inline void EulerToVector(double a_Pan, double a_Pitch, double & a_X, double & a
 
 inline void VectorToEuler(double a_X, double a_Y, double a_Z, double & a_Pan, double & a_Pitch)
 {
-	if (fabs(a_X) < std::numeric_limits::epsilon() )
+	if (fabs(a_X) < std::numeric_limits<double>::epsilon())
 	{
 		a_Pan = atan2(a_Z, a_X) * 180 / PI - 90;
 	}
diff --git a/src/Globals.h b/src/Globals.h
index 98611fc55..b046e6db0 100644
--- a/src/Globals.h
+++ b/src/Globals.h
@@ -81,7 +81,7 @@
 #endif
 
 
-
+#include <stddef.h>
 
 
 // Integral types with predefined sizes:
@@ -96,8 +96,22 @@ typedef unsigned short     UInt16;
 typedef unsigned char Byte;
 
 
+// If you get an error about specialization check the size of integral types
+template <typename T, size_t Size, bool x = sizeof(T) == Size>
+class SizeChecker;
+
+template <typename T, size_t Size>
+class SizeChecker<T, Size, true> {
+  T v;
+};
 
+template class SizeChecker<Int64, 8>;
+template class SizeChecker<Int32, 4>;
+template class SizeChecker<Int16, 2>;
 
+template class SizeChecker<UInt64, 8>;
+template class SizeChecker<UInt32, 4>;
+template class SizeChecker<UInt16, 2>;
 
 // A macro to disallow the copy constructor and operator= functions
 // This should be used in the private: declarations for any class that shouldn't allow copying itself
@@ -179,7 +193,7 @@ typedef unsigned char Byte;
 #include <memory>
 #include <set>
 #include <queue>
-
+#include <limits>
 
 
 
diff --git a/src/MersenneTwister.h b/src/MersenneTwister.h
index 07b6b1e5c..2c5440f17 100644
--- a/src/MersenneTwister.h
+++ b/src/MersenneTwister.h
@@ -59,8 +59,6 @@
 #include <ctime>
 #include <cmath>
 
-#include "Globals.h"
-
 class MTRand {
 // Data
 public:
-- 
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