efi: add poor man's offsetof() implementation

2018-10-16 16:44:34 +02:00
parent d10ba83a1b
commit b73acaed42
1 changed files with 1 additions and 0 deletions
@@ -5,6 +5,7 @@
 #include <efilib.h>

 #define ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
+#define OFFSETOF(x,y) ((UINTN) &(((x*)0)->y))

 static inline const CHAR16 *yes_no(BOOLEAN b) {
        return b ? L"yes" : L"no";