From 22134a8f3b9645ad3cefeeac15892604829c3d87 Mon Sep 17 00:00:00 2001
From: mwish <maplewish117@gmail.com>
Date: Wed, 29 Jan 2025 18:04:18 +0800
Subject: [PATCH] Fix compile and use TypeClass of Scalar

---
 cpp/src/arrow/scalar.cc | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/cpp/src/arrow/scalar.cc b/cpp/src/arrow/scalar.cc
index 21dbda3b96f50..c7c4433cecc8e 100644
--- a/cpp/src/arrow/scalar.cc
+++ b/cpp/src/arrow/scalar.cc
@@ -1177,14 +1177,15 @@ enable_if_duration<To, Result<std::shared_ptr<Scalar>>> CastImpl(
 }
 
 // time to time
-template <typename To, typename From>
+template <typename To, typename From,
+          typename T = typename TypeTraits<To>::ScalarType::TypeClass>
 enable_if_time<To, Result<std::shared_ptr<Scalar>>> CastImpl(
     const TimeScalar<From>& from, std::shared_ptr<DataType> to_type) {
   using ToScalar = typename TypeTraits<To>::ScalarType;
   ARROW_ASSIGN_OR_RAISE(
       auto value, util::ConvertTimestampValue(AsTimestampType<From>(from.type),
                                               AsTimestampType<To>(to_type), from.value));
-  return std::make_shared<ToScalar>(value, std::move(to_type));
+  return std::make_shared<ToScalar>(static_cast<typename To::c_type>(value), std::move(to_type));
 }
 
 constexpr int64_t kMillisecondsInDay = 86400000;