lib: use powers of two for object type enumerators

[babeltrace.git] / include / babeltrace2 / value-const.h

diff --git a/include/babeltrace2/value-const.h b/include/babeltrace2/value-const.h
index 2f1ffe779b653bfdfc241f545b1de325fd15d366..0001ddd8d1e33e0a39e2621fb51f19aae489df58 100644 (file)
--- a/include/babeltrace2/value-const.h
+++ b/include/babeltrace2/value-const.h
@@ -38,32 +38,41 @@ extern "C" {
 
 typedef enum bt_value_type {
        /// Null value object.
-       BT_VALUE_TYPE_NULL              = 0,
+       BT_VALUE_TYPE_NULL              = 1 << 0,
 
        /// Boolean value object (holds #BT_TRUE or #BT_FALSE).
-       BT_VALUE_TYPE_BOOL              = 1,
+       BT_VALUE_TYPE_BOOL              = 1 << 1,
+
+       BT_VALUE_TYPE_INTEGER           = 1 << 2,
 
        /// Unsigned integer value object (holds an unsigned 64-bit integer raw value).
-       BT_VALUE_TYPE_UNSIGNED_INTEGER  = 2,
+       BT_VALUE_TYPE_UNSIGNED_INTEGER  = (1 << 3) | BT_VALUE_TYPE_INTEGER,
 
        /// Signed integer value object (holds a signed 64-bit integer raw value).
-       BT_VALUE_TYPE_SIGNED_INTEGER    = 3,
+       BT_VALUE_TYPE_SIGNED_INTEGER    = (1 << 4) | BT_VALUE_TYPE_INTEGER,
 
        /// Floating point number value object (holds a \c double raw value).
-       BT_VALUE_TYPE_REAL              = 4,
+       BT_VALUE_TYPE_REAL              = 1 << 5,
 
        /// String value object.
-       BT_VALUE_TYPE_STRING            = 5,
+       BT_VALUE_TYPE_STRING            = 1 << 6,
 
        /// Array value object.
-       BT_VALUE_TYPE_ARRAY             = 6,
+       BT_VALUE_TYPE_ARRAY             = 1 << 7,
 
        /// Map value object.
-       BT_VALUE_TYPE_MAP               = 7,
+       BT_VALUE_TYPE_MAP               = 1 << 8,
 } bt_value_type;
 
 extern bt_value_type bt_value_get_type(const bt_value *object);
 
+static inline
+bt_bool bt_value_type_is(const bt_value_type type,
+               const bt_value_type type_to_check)
+{
+       return (type & type_to_check) == type_to_check;
+}
+
 static inline
 bt_bool bt_value_is_null(const bt_value *object)
 {