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-rw-r--r--generic/tcl.h9
1 files changed, 6 insertions, 3 deletions
diff --git a/generic/tcl.h b/generic/tcl.h
index 1da4df8..c69ea9d 100644
--- a/generic/tcl.h
+++ b/generic/tcl.h
@@ -818,11 +818,14 @@ typedef struct Tcl_DString {
#define TCL_DONT_QUOTE_HASH 8
/*
- * Flag that may be passed to Tcl_GetIndexFromObj to force it to disallow
- * abbreviated strings.
+ * Flags that may be passed to Tcl_GetIndexFromObj.
+ * TCL_EXACT disallows abbreviated strings.
+ * TCL_INDEX_TEMP_TABLE disallows caching of lookups. A possible use case is
+ * a table that will not live long enough to make it worthwhile.
*/
-#define TCL_EXACT 1
+#define TCL_EXACT 1
+#define TCL_INDEX_TEMP_TABLE 2
/*
*----------------------------------------------------------------------------