Clarify variant vs enum

[ctf.git] / common-trace-format-specification.txt

diff --git a/common-trace-format-specification.txt b/common-trace-format-specification.txt
index 7d013d071108dcc7fd3d6bcbbea1c008cd01f935..abe4fb70fff7f17f6e8242f313fb74bff44cf89a 100644 (file)
--- a/common-trace-format-specification.txt
+++ b/common-trace-format-specification.txt
@@ -468,9 +468,11 @@ by the mapping from the enumeration value to the string used as variant
 type selector. The field to use as tag is specified by the "tag_field",
 specified between "< >" after the "variant" keyword for unnamed
 variants, and after "variant name" for named variants. It is not
-required that each enumeration mapping appears as variant type tag field.
-However, it is required that any enumeration mapping encountered within a
-stream has a matching variant type tag field.
+required that each enumeration mapping appears as variant type tag
+field. It is also not required that each variant type tag appears as
+enumeration mapping. However, it is required that any enumeration
+mapping encountered within a stream has a matching variant type tag
+field.
 
 The alignment of the variant is the alignment of the type as selected by
 the tag value for the specific instance of the variant.  The size of the