From 093781c01889dddf0afa8eacd7aab8efe12a18ce Mon Sep 17 00:00:00 2001
From: Christopher Lam <christopher.lck@gmail.com>
Date: Sun, 17 Mar 2024 16:36:41 +0800
Subject: [PATCH] [policy.cpp] convert to cpp

---
 libgnucash/engine/CMakeLists.txt           |  2 +-
 libgnucash/engine/{policy.c => policy.cpp} | 16 ++++++++--------
 po/POTFILES.in                             |  2 +-
 3 files changed, 10 insertions(+), 10 deletions(-)
 rename libgnucash/engine/{policy.c => policy.cpp} (95%)

diff --git a/libgnucash/engine/CMakeLists.txt b/libgnucash/engine/CMakeLists.txt
index f07e022e64..a6b6df1744 100644
--- a/libgnucash/engine/CMakeLists.txt
+++ b/libgnucash/engine/CMakeLists.txt
@@ -177,7 +177,7 @@ set (engine_SOURCES
   gnc-uri-utils.c
   engine-helpers.c
   guid.cpp
-  policy.c
+  policy.cpp
   gncAddress.c
   gncBillTerm.c
   gncBusiness.c
diff --git a/libgnucash/engine/policy.c b/libgnucash/engine/policy.cpp
similarity index 95%
rename from libgnucash/engine/policy.c
rename to libgnucash/engine/policy.cpp
index 3e4b05614b..e8039749b1 100644
--- a/libgnucash/engine/policy.c
+++ b/libgnucash/engine/policy.cpp
@@ -76,18 +76,18 @@ DirectionPolicyGetSplit (GNCPolicy *pcy, GNCLot *lot, short reverse)
     time64 open_time;
     Account* lot_account;
 
-    if (!pcy || !lot || !gnc_lot_get_split_list(lot)) return NULL;
+    if (!pcy || !lot || !gnc_lot_get_split_list(lot)) return nullptr;
     lot_account = gnc_lot_get_account(lot);
-    if (!lot_account) return NULL;
+    if (!lot_account) return nullptr;
 
     /* Recomputing the balance re-evaluates the lot closure */
     baln = gnc_lot_get_balance (lot);
-    if (gnc_lot_is_closed(lot)) return NULL;
+    if (gnc_lot_is_closed(lot)) return nullptr;
 
     want_positive = gnc_numeric_negative_p (baln);
 
     /* All splits in lot must share a common transaction currency. */
-    split = gnc_lot_get_split_list(lot)->data;
+    split = GNC_SPLIT(gnc_lot_get_split_list(lot)->data);
     common_currency = split->parent->common_currency;
 
     /* Don't add a split to the lot unless it will be the new last
@@ -111,7 +111,7 @@ DirectionPolicyGetSplit (GNCPolicy *pcy, GNCLot *lot, short reverse)
         gboolean is_match;
         gboolean is_positive;
         time64 this_time;
-        split = node->data;
+        split = GNC_SPLIT(node->data);
         if (split->lot) goto donext;
 
         /* Skip it if it's too early */
@@ -145,7 +145,7 @@ donext:
             node = node->next;
         }
     }
-    return NULL;
+    return nullptr;
 }
 
 /* ============================================================== */
@@ -153,7 +153,7 @@ donext:
 static GNCLot *
 FIFOPolicyGetLot (GNCPolicy *pcy, Split *split)
 {
-    if (!split) return NULL;
+    if (!split) return nullptr;
     return xaccAccountFindEarliestOpenLot (split->acc, split->amount,
                                            split->parent->common_currency);
 }
@@ -189,7 +189,7 @@ FIFOPolicyIsOpeningSplit (GNCPolicy *pcy, GNCLot *lot, Split *split)
 GNCPolicy *
 xaccGetFIFOPolicy (void)
 {
-    static GNCPolicy *pcy = NULL;
+    static GNCPolicy *pcy = nullptr;
 
     if (!pcy)
     {
diff --git a/po/POTFILES.in b/po/POTFILES.in
index bc28fad43c..29754f9aab 100644
--- a/po/POTFILES.in
+++ b/po/POTFILES.in
@@ -666,7 +666,7 @@ libgnucash/engine/gncVendor.c
 libgnucash/engine/guid.cpp
 libgnucash/engine/kvp-frame.cpp
 libgnucash/engine/kvp-value.cpp
-libgnucash/engine/policy.c
+libgnucash/engine/policy.cpp
 libgnucash/engine/qof-backend.cpp
 libgnucash/engine/qofbook.cpp
 libgnucash/engine/qofbookslots.h