From: Vitaly Cheptsov via Groups.Io <vit9696=protonmail.com@groups.io>
Date: Fri, 16 Aug 2019 23:28:14 +0000 (+0800)
Subject: MdePkg: Add STATIC_ASSERT macro
X-Git-Tag: edk2-stable201911~281
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=204ae9da230ecbf0910c21acac7aa5d5e8cbb8d0

MdePkg: Add STATIC_ASSERT macro

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2048

Provide a macro for compile time assertions.
Equivalent to C11 static_assert macro from assert.h.

Signed-off-by: Vitaly Cheptsov <vit9696@protonmail.com>
Reviewed-by: Philippe Mathieu-Daude <philmd@redhat.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Acked-by: Jiewen Yao <jiewen.yao@intel.com>
---

diff --git a/MdePkg/Include/Base.h b/MdePkg/Include/Base.h
index ce20b5f01d..ec096133ba 100644
--- a/MdePkg/Include/Base.h
+++ b/MdePkg/Include/Base.h
@@ -843,6 +843,20 @@ typedef UINTN  *BASE_LIST;
 #define OFFSET_OF(TYPE, Field) ((UINTN) &(((TYPE *)0)->Field))
 #endif
 
+/**
+  Portable definition for compile time assertions.
+  Equivalent to C11 static_assert macro from assert.h.
+
+  @param  Expression  Boolean expression.
+  @param  Message     Raised compiler diagnostic message when expression is false.
+
+**/
+#ifdef _MSC_EXTENSIONS
+  #define STATIC_ASSERT static_assert
+#else
+  #define STATIC_ASSERT _Static_assert
+#endif
+
 /**
   Macro that returns a pointer to the data structure that contains a specified field of
   that data structure.  This is a lightweight method to hide information by placing a