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-rw-r--r--libguile/strings.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/libguile/strings.h b/libguile/strings.h
index e68bbe9ab..4e5f70098 100644
--- a/libguile/strings.h
+++ b/libguile/strings.h
@@ -142,6 +142,17 @@ SCM_API size_t scm_to_locale_stringbuf (SCM str, char *buf, size_t max_len);
SCM_API SCM scm_makfromstrs (int argc, char **argv);
+
+/* internal constants */
+
+/* Type tag for read-only strings. */
+#define scm_tc7_ro_string (scm_tc7_string + 0x200)
+
+/* Flags for shared and wide strings. */
+#define SCM_I_STRINGBUF_F_SHARED 0x100
+#define SCM_I_STRINGBUF_F_WIDE 0x400
+
+
/* internal accessor functions. Arguments must be valid. */
SCM_INTERNAL SCM scm_i_make_string (size_t len, char **datap);