diff options
Diffstat (limited to 'generic/tcl.h')
| -rw-r--r-- | generic/tcl.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/generic/tcl.h b/generic/tcl.h index c3db670..6b69929 100644 --- a/generic/tcl.h +++ b/generic/tcl.h @@ -826,10 +826,13 @@ typedef struct Tcl_DString { * 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. + * TCL_INDEX_NULL_OK allows the empty string or NULL to return TCL_OK. + * The returned value will be -1; */ #define TCL_EXACT 1 #define TCL_INDEX_TEMP_TABLE 2 +#define TCL_INDEX_NULL_OK 4 /* *---------------------------------------------------------------------------- |