[libcxx][test] Use smaller time range for 32 bit time_t

[DavidSpickett]

This fixes the test on Arm 32 bit Ubuntu Jammy where time_t is 32 bit.

[llvmbot]

@llvm/pr-subscribers-libcxx

Author: David Spickett (DavidSpickett)

Changes

This fixes the test on Arm 32 bit Ubuntu Jammy where time_t is 32 bit.

---

Full diff: https://github.com/llvm/llvm-project/pull/104762.diff

1 Files Affected:

• (modified) libcxx/test/std/time/time.zone/time.zone.timezone/time.zone.members/sys_info.zdump.pass.cpp (+1-4)

diff --git a/libcxx/test/std/time/time.zone/time.zone.timezone/time.zone.members/sys_info.zdump.pass.cpp b/libcxx/test/std/time/time.zone/time.zone.timezone/time.zone.members/sys_info.zdump.pass.cpp
index 2b97d9a5bc745b..b474fe50083b1d 100644
--- a/libcxx/test/std/time/time.zone/time.zone.timezone/time.zone.members/sys_info.zdump.pass.cpp
+++ b/libcxx/test/std/time/time.zone/time.zone.timezone/time.zone.members/sys_info.zdump.pass.cpp
@@ -13,9 +13,6 @@
 // XFAIL: libcpp-has-no-experimental-tzdb
 // XFAIL: availability-tzdb-missing
 
-// TODO TZDB Investigate
-// UNSUPPORTED: target={{armv(7|8)l-linux-gnueabihf}}
-
 #include <chrono>
 #include <format>
 #include <fstream>
@@ -28,7 +25,7 @@
 // The year range to validate. The dates used in practice are expected to be
 // inside the tested range.
 constexpr std::chrono::year first{1800};
-constexpr std::chrono::year last{2100};
+constexpr std::chrono::year last{sizeof(time_t) == 8 ? 2100 : 2037};
 
 // A custom sys_info class that also stores the name of the time zone.
 // Its formatter matches the output of zdump.

[DavidSpickett]

This means that regardless of zdump's ability to handle 64 bit time_t, the test will only ever pass values in the 32 bit range.

So if there's a system out there where they are 32 bit but decided to use time_t 64 bit but the zdump is still using 32 bit time_t (risc-v perhaps?), the test will fail, but we have #103056 if that happens.

[DavidSpickett]

ping!

[DavidSpickett]

ping!