utimens: cache whether utimensat syscall works

[pspp] / lib / unictype.h

diff --git a/lib/unictype.h b/lib/unictype.h
index acf093b91cf231c50b864a9d13ed6684f37d4827..ae47d1153f423b7535b36d80bdcc2cd86e13be02 100644 (file)
--- a/lib/unictype.h
+++ b/lib/unictype.h
@@ -463,6 +463,9 @@ extern const uc_property_t UC_PROPERTY_IGNORABLE_CONTROL;
 extern uc_property_t
        uc_property_byname (const char *property_name);
 
+/* Test whether a property is valid.  */
+#define uc_property_is_valid(property) ((property).test_fn != NULL)
+
 /* Test whether a Unicode character has a given property.  */
 extern bool
        uc_is_property (ucs4_t uc, uc_property_t property);