From e1942bb490cabcc40cd8fdd3fe042c3427c72619 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Branimir=20Karad=C5=BEi=C4=87?= <branimirkaradzic@gmail.com>
Date: Sun, 9 Feb 2014 14:43:20 -0800
Subject: [PATCH] Added BX_ENABLED macro.

---
 include/bx/bx.h | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/include/bx/bx.h b/include/bx/bx.h
index c666777..2f3c062 100644
--- a/include/bx/bx.h
+++ b/include/bx/bx.h
@@ -16,7 +16,21 @@ namespace bx
 {
 	// http://cnicholson.net/2011/01/stupid-c-tricks-a-better-sizeof_array/
 	template<typename T, size_t N> char (&COUNTOF_REQUIRES_ARRAY_ARGUMENT(const T(&)[N]) )[N];
-#define BX_COUNTOF(x) sizeof(bx::COUNTOF_REQUIRES_ARRAY_ARGUMENT(x) )
+#define BX_COUNTOF(_x) sizeof(bx::COUNTOF_REQUIRES_ARRAY_ARGUMENT(_x) )
+
+	// Template for avoiding MSVC: C4127: conditional expression is constant
+	template<bool>
+	BX_FORCE_INLINE bool isEnabled()
+	{
+		return true;
+	}
+
+	template<>
+	BX_FORCE_INLINE bool isEnabled<false>()
+	{
+		return false;
+	}
+#define BX_ENABLED(_x) bx::isEnabled<!!(_x)>()
 
 } // namespace bx