1 files changed, 6 insertions, 3 deletions
diff --git a/source/blender/makesdna/DNA_genfile.h b/source/blender/makesdna/DNA_genfile.h
index bc127ac2c82..a2981c0aa76 100644
--- a/source/blender/makesdna/DNA_genfile.h
+++ b/source/blender/makesdna/DNA_genfile.h
@@ -69,8 +69,11 @@ typedef enum eSDNA_Type {
  * For use with #DNA_struct_reconstruct & #DNA_struct_get_compareflags
  */
 enum eSDNA_StructCompare {
+	/* Struct has disappeared (values of this struct type will not be loaded by the current Blender) */
 	SDNA_CMP_REMOVED    = 0,
+	/* Struct is the same (can be loaded with straight memory copy after any necessary endian conversion) */
 	SDNA_CMP_EQUAL      = 1,
+	/* Struct is different in some way (needs to be copied/converted field by field) */
 	SDNA_CMP_NOT_EQUAL  = 2,
 };
 
@@ -89,15 +92,15 @@ void               DNA_sdna_current_free(void);
 int DNA_struct_find_nr_ex(const struct SDNA *sdna, const char *str, unsigned int *index_last);
 int DNA_struct_find_nr(const struct SDNA *sdna, const char *str);
 void DNA_struct_switch_endian(const struct SDNA *oldsdna, int oldSDNAnr, char *data);
-char *DNA_struct_get_compareflags(const struct SDNA *sdna, const struct SDNA*newsdna);
+const char *DNA_struct_get_compareflags(const struct SDNA *sdna, const struct SDNA *newsdna);
 void *DNA_struct_reconstruct(
         const struct SDNA *newsdna, const struct SDNA *oldsdna,
-        char *compflags, int oldSDNAnr, int blocks, void *data);
+        const char *compflags, int oldSDNAnr, int blocks, const void *data);
 
 int DNA_elem_array_size(const char *str);
 int DNA_elem_offset(struct SDNA *sdna, const char *stype, const char *vartype, const char *name);
 
-bool DNA_struct_elem_find(struct SDNA *sdna, const char *stype, const char *vartype, const char *name);
+bool DNA_struct_elem_find(const struct SDNA *sdna, const char *stype, const char *vartype, const char *name);
 
 
 int DNA_elem_type_size(const eSDNA_Type elem_nr);