From ba885e318ab354e56c627c3763c57b69730d04c3 Mon Sep 17 00:00:00 2001
From: Yohei Yukawa <yukawa@ciceroaware.dev>
Date: Sun, 15 Mar 2026 23:18:12 +0900
Subject: [PATCH] Fix inverted null check in time_zone_name_win.cc

This commit follows up the previous commit [1], which aimed to improve
the code but ended up introducing an inverted null check in
time_zone_name_win.cc. As a result, LoadIcuGetTimeZoneIDForWindowsID()
currently returns nullptr when it should be returning a valid time zone
ID.

This is also a preparation for implementing TimeZoneIf with Windows time
APIs (#328).

[1] 27ca17317e9e5772bcf30d5e21cf837b5525442a
---
 src/time_zone_name_win.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/time_zone_name_win.cc b/src/time_zone_name_win.cc
index daa9a56..d3d9566 100644
--- a/src/time_zone_name_win.cc
+++ b/src/time_zone_name_win.cc
@@ -112,7 +112,7 @@ ucal_getTimeZoneIDForWindowsID_func LoadIcuGetTimeZoneIDForWindowsID() {
   const auto ucal_getTimeZoneIDForWindowsIDRef =
       AsProcAddress<ucal_getTimeZoneIDForWindowsID_func>(
           icu_dll, "ucal_getTimeZoneIDForWindowsID");
-  if (ucal_getTimeZoneIDForWindowsIDRef != nullptr) {
+  if (ucal_getTimeZoneIDForWindowsIDRef == nullptr) {
     g_unavailable.store(true, std::memory_order_relaxed);
     return nullptr;
   }