1 files changed, 9 insertions, 1 deletions
diff --git a/include/stc/forward.h b/include/stc/forward.h
index bffdf154..ea552204 100644
--- a/include/stc/forward.h
+++ b/include/stc/forward.h
@@ -42,7 +42,15 @@
 #define forward_cqueue(CX, VAL) _c_cdeq_types(CX, VAL)
 #define forward_cvec(CX, VAL) _c_cvec_types(CX, VAL)
 
-typedef struct cstr { char* str; } cstr;
+#ifdef CSTR_IS_SSO
+typedef struct { char* data; size_t size, cap; } _cstr_rep_t;
+typedef union {
+    struct { char data[sizeof(_cstr_rep_t) - 1], cap_len; } sso;
+    struct { char* data; size_t size, ncap; } lon;
+} cstr;
+#else
+  typedef struct cstr { char* str; } cstr;
+#endif
 typedef char cstr_value;
 
 typedef struct csview { const char* str; size_t size; } csview;