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-rw-r--r--tools/nitrogfx/global.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/nitrogfx/global.h b/tools/nitrogfx/global.h
index 65dd351d..32378a9f 100644
--- a/tools/nitrogfx/global.h
+++ b/tools/nitrogfx/global.h
@@ -28,4 +28,10 @@ do { \
#endif // _MSC_VER
+#define PTR_ADD(ptr, value) ((void*)((uintptr_t)(ptr) + (value)))
+#define PTR_SUB(ptr, value) ((void*)((uintptr_t)(ptr) - (value)))
+#define PTR_IADD(ptr, value) do { (ptr) = PTR_ADD(ptr, value); } while (0)
+#define PTR_ISUB(ptr, value) do { (ptr) = PTR_SUB(ptr, value); } while (0)
+#define PTR_DIFF(right, left) ((uintptr_t)(right) - (uintptr_t)(left))
+
#endif // GLOBAL_H