1 files changed, 1 insertions, 0 deletions

diff --git a/lobject.h b/lobject.h
index bc2f69ab..cc3dd370 100644
--- a/lobject.h
+++ b/lobject.h
@@ -418,6 +418,7 @@ typedef struct TString {
 
 
 #define strisshr(ts)    ((ts)->shrlen >= 0)
+#define isextstr(ts)    (ttislngstring(ts) && tsvalue(ts)->shrlen != LSTRREG)
 
 
 /*