[Bf-blender-cvs] [34027506f85] master: Cleanup: ID macros: cast to `const ID *` instead of `ID *`.

[Bastien Montagne]

Commit: 34027506f855ff506151953311d762235122b66d
Author: Bastien Montagne
Date:   Tue Jun 30 11:22:18 2020 +0200
Branches: master
https://developer.blender.org/rB34027506f855ff506151953311d762235122b66d

Cleanup: ID macros: cast to `const ID *` instead of `ID *`.

Allows to pass const pointers without getting complains from the
compiler.

===================================================================

M	source/blender/makesdna/DNA_ID.h

===================================================================

diff --git a/source/blender/makesdna/DNA_ID.h b/source/blender/makesdna/DNA_ID.h
index 138bbcf7ff2..ed2d3671b6b 100644
--- a/source/blender/makesdna/DNA_ID.h
+++ b/source/blender/makesdna/DNA_ID.h
@@ -449,9 +449,9 @@ typedef enum ID_Type {
 /* fluidsim Ipo */
 #define ID_FLUIDSIM MAKE_ID2('F', 'S')
 
-#define ID_FAKE_USERS(id) ((((ID *)id)->flag & LIB_FAKEUSER) ? 1 : 0)
-#define ID_REAL_USERS(id) (((ID *)id)->us - ID_FAKE_USERS(id))
-#define ID_EXTRA_USERS(id) (((ID *)id)->tag & LIB_TAG_EXTRAUSER ? 1 : 0)
+#define ID_FAKE_USERS(id) ((((const ID *)id)->flag & LIB_FAKEUSER) ? 1 : 0)
+#define ID_REAL_USERS(id) (((const ID *)id)->us - ID_FAKE_USERS(id))
+#define ID_EXTRA_USERS(id) (((const ID *)id)->tag & LIB_TAG_EXTRAUSER ? 1 : 0)
 
 #define ID_CHECK_UNDO(id) \
   ((GS((id)->name) != ID_SCR) && (GS((id)->name) != ID_WM) && (GS((id)->name) != ID_WS))
@@ -461,17 +461,17 @@ typedef enum ID_Type {
 #define ID_BLEND_PATH_FROM_GLOBAL(_id) \
   ((_id)->lib ? (_id)->lib->filepath_abs : BKE_main_blendfile_path_from_global())
 
-#define ID_MISSING(_id) ((((ID *)(_id))->tag & LIB_TAG_MISSING) != 0)
+#define ID_MISSING(_id) ((((const ID *)(_id))->tag & LIB_TAG_MISSING) != 0)
 
-#define ID_IS_LINKED(_id) (((ID *)(_id))->lib != NULL)
+#define ID_IS_LINKED(_id) (((const ID *)(_id))->lib != NULL)
 
 /* Note that this is a fairly high-level check, should be used at user interaction level, not in
  * BKE_library_override typically (especially due to the check on LIB_TAG_EXTERN). */
 #define ID_IS_OVERRIDABLE_LIBRARY(_id) \
-  (ID_IS_LINKED(_id) && !ID_MISSING(_id) && (((ID *)(_id))->tag & LIB_TAG_EXTERN) != 0)
+  (ID_IS_LINKED(_id) && !ID_MISSING(_id) && (((const ID *)(_id))->tag & LIB_TAG_EXTERN) != 0)
 
 #define ID_IS_OVERRIDE_LIBRARY(_id) \
-  (((ID *)(_id))->override_library != NULL && ((ID *)(_id))->override_library->reference != NULL)
+  (((const ID *)(_id))->override_library != NULL && ((const ID *)(_id))->override_library->reference != NULL)
 
 #define ID_IS_OVERRIDE_LIBRARY_TEMPLATE(_id) \
   (((ID *)(_id))->override_library != NULL && ((ID *)(_id))->override_library->reference == NULL)