Add check and comment for i18npool locale data using reserved formatIndex

Change-Id: I9401e353241973129bff764d6d7b7f94d7c9b7b0

1 files changed, 13 insertions, 1 deletions

diff --git a/include/svl/zforlist.hxx b/include/svl/zforlist.hxx
index 7929cc18cd7d..35a1bc5c50c1 100644
--- a/include/svl/zforlist.hxx
+++ b/include/svl/zforlist.hxx
@@ -182,7 +182,19 @@ enum NfIndexTableOffset
 
     NF_DATETIME_ISO_YYYYMMDD_HHMMSS,        // 1997-10-08 01:23:45          ISO (with blank instead of T)
 
-    NF_INDEX_TABLE_ENTRIES                  // == 59, reserved up to 59 to not use in i18npool locale data.
+    // XXX When adding values here, follow the comment above about
+    // svx/source/items/numfmtsh.cxx
+
+    NF_INDEX_TABLE_ENTRIES                  // == 58, reserved up to #59 to not be used in i18npool locale data.
+
+    // XXX Adding values above may increment the reserved area that can't be
+    // used by i18npool's locale data FormatCode definitions, see the
+    // description at i18npool/source/localedata/data/locale.dtd for ELEMENT
+    // FormatCode what the current convention's value is. In that case, the
+    // used formatIndex values in i18npool/source/localedata/data/*.xml will
+    // have to be adjusted.
+    // Overlapping the area will bail out with a check in
+    // SvNumberFormatter::ImpInsertFormat() in debug builds.
 };