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-rw-r--r--timezone/private.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/timezone/private.h b/timezone/private.h
index ed19e066d9..4e8f4ae7bc 100644
--- a/timezone/private.h
+++ b/timezone/private.h
@@ -326,6 +326,16 @@ const char * scheck(const char * string, const char * format);
#define TYPE_SIGNED(type) (((type) -1) < 0)
#endif /* !defined TYPE_SIGNED */
+/* The minimum and maximum finite time values. */
+static time_t const time_t_min =
+ (TYPE_SIGNED(time_t)
+ ? (time_t) -1 << (CHAR_BIT * sizeof (time_t) - 1)
+ : 0);
+static time_t const time_t_max =
+ (TYPE_SIGNED(time_t)
+ ? - (~ 0 < 0) - ((time_t) -1 << (CHAR_BIT * sizeof (time_t) - 1))
+ : -1);
+
#ifndef INT_STRLEN_MAXIMUM
/*
** 302 / 1000 is log10(2.0) rounded up.