hare

commit 04b693028133c08a2e5625770f4d8ac15a51c1f0
parent 1bfa1fde7fcac1c5bdcf29518d75b7eda784a675
Author: Nihal Jere <nihal@nihaljere.xyz>
Date:   Mon, 16 May 2022 13:48:13 -0500

time::chrono: treat presence of both utcnt and stdcnt as invalid

This uses the same logic from the Olson code, which treats this
condition as invalid.

Signed-off-by: Nihal Jere <nihal@nihaljere.xyz>

Diffstat:
M
time/chrono/tzdb.ha
 | 
12
++----------

1 file changed, 2 insertions(+), 10 deletions(-)
diff --git a/time/chrono/tzdb.ha b/time/chrono/tzdb.ha
@@ -140,19 +140,11 @@ fn parse_tzif(h: io::handle, tz: *timezone) (void | invalidtzif | io::error) = {
 		return invalidtzif;
 	};
 
-	if (isutcnt != 0 && isutcnt != typecnt) {
+	if (!(isutcnt == 0 || isutcnt == typecnt)
+			&& (isstdcnt == 0 && isstdcnt == typecnt)) {
 		return invalidtzif;
 	};
 
-	if (isstdcnt != 0 && isstdcnt != typecnt) {
-		return invalidtzif;
-	};
-
-	// TODO: if and how to handle? check Olson's tz code for behaviour.
-	if (isutcnt != 0 && isstdcnt != 0) {
-		void;
-	};
-
 	const timesz = if (is64) 8 else 4;
 
 	// read data