MdePkg/Include: Add enumeration size checks to Base.h

[mirror_edk2.git] / MdePkg / Include / Base.h

diff --git a/MdePkg/Include/Base.h b/MdePkg/Include/Base.h
index 93f6686b995ef0653fcdccd899d51f861bd78c34..22170581a00f44f57e2affc27360f2f00d4210c5 100644 (file)
--- a/MdePkg/Include/Base.h
+++ b/MdePkg/Include/Base.h
@@ -63,6 +63,22 @@ VERIFY_SIZE_OF (UINT64, 8);
 VERIFY_SIZE_OF (CHAR8, 1);\r
 VERIFY_SIZE_OF (CHAR16, 2);\r
 \r
+typedef enum {\r
+  __VerifyUint8EnumValue = 0xff\r
+} __VERIFY_UINT8_ENUM_SIZE;\r
+\r
+typedef enum {\r
+  __VerifyUint16EnumValue = 0xffff\r
+} __VERIFY_UINT16_ENUM_SIZE;\r
+\r
+typedef enum {\r
+  __VerifyUint32EnumValue = 0xffffffff\r
+} __VERIFY_UINT32_ENUM_SIZE;\r
+\r
+VERIFY_SIZE_OF (__VERIFY_UINT8_ENUM_SIZE, 4);\r
+VERIFY_SIZE_OF (__VERIFY_UINT16_ENUM_SIZE, 4);\r
+VERIFY_SIZE_OF (__VERIFY_UINT32_ENUM_SIZE, 4);\r
+\r
 //\r
 // The Microsoft* C compiler can removed references to unreferenced data items\r
 //  if the /OPT:REF linker option is used. We defined a macro as this is a\r
@@ -302,7 +318,7 @@ struct _LIST_ENTRY {
 \r
 //\r
 //  UEFI specification claims 1 and 0. We are concerned about the\r
-//  complier portability so we did it this way.\r
+//  compiler portability so we did it this way.\r
 //\r
 \r
 ///\r
@@ -1211,5 +1227,18 @@ typedef UINTN RETURN_STATUS;
   #define RETURN_ADDRESS(L)     ((VOID *) 0)\r
 #endif\r
 \r
+/**\r
+  Return the number of elements in an array.\r
+\r
+  @param  Array  An object of array type. Array is only used as an argument to\r
+                 the sizeof operator, therefore Array is never evaluated. The\r
+                 caller is responsible for ensuring that Array's type is not\r
+                 incomplete; that is, Array must have known constant size.\r
+\r
+  @return The number of elements in Array. The result has type UINTN.\r
+\r
+**/\r
+#define ARRAY_SIZE(Array) (sizeof (Array) / sizeof ((Array)[0]))\r
+\r
 #endif\r
 \r