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-rw-r--r--src/structs.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/src/structs.h b/src/structs.h
index 0899ae792..7c3b81e04 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -1381,7 +1381,7 @@ struct type_S {
typedef struct
{
vartype_T v_type;
- char v_lock; // see below: VAR_LOCKED, VAR_FIXED
+ char v_lock; // see below: VAR_LOCKED, VAR_FIXED, VAR_BOOL_OK
union
{
varnumber_T v_number; // number value
@@ -1406,8 +1406,9 @@ typedef struct
// allowed to mask existing functions
// Values for "v_lock".
-#define VAR_LOCKED 1 // locked with lock(), can use unlock()
-#define VAR_FIXED 2 // locked forever
+#define VAR_LOCKED 1 // locked with lock(), can use unlock()
+#define VAR_FIXED 2 // locked forever
+#define VAR_BOOL_OK 4 // can be convered to bool
/*
* Structure to hold an item of a list: an internal variable without a name.