tests: factor out st_ctime-comparison code (a dozen uses)

[gnulib.git] / tests / test-utimens-common.h

diff --git a/tests/test-utimens-common.h b/tests/test-utimens-common.h
index f3ffaf5..1730beb 100644 (file)
--- a/tests/test-utimens-common.h
+++ b/tests/test-utimens-common.h
@@ -57,4 +57,21 @@ enum {
 #  define check_ctime 1
 # endif
 
+/* Compare two st_ctime values.  Return -1, 0 or 1, respectively
+   when A's st_ctime is smaller than, equal to or greater than B's.  */
+static inline int
+ctime_compare (struct stat const *a, struct stat const *b)
+{
+  if (a->st_ctime < b->st_ctime)
+    return -1;
+  else if (b->st_ctime < a->st_ctime)
+    return 1;
+  else if (get_stat_ctime_ns (a) < get_stat_ctime_ns (b))
+    return -1;
+  else if (get_stat_ctime_ns (b) < get_stat_ctime_ns (a))
+    return 1;
+  else
+    return 0;
+}
+
 #endif /* GL_TEST_UTIMENS_COMMON */