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qdate
Fix-adding-months-to-date-that-ends-in-dec-foll...
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File Fix-adding-months-to-date-that-ends-in-dec-following.patch of Package qdate
From bab222aeb47b160c23ebc23acde7a0b4b960be29 Mon Sep 17 00:00:00 2001 From: Jesse Gumm <gumm@sigma-star.com> Date: Fri, 29 Sep 2017 15:18:02 -0500 Subject: [PATCH] Fix adding months to date that ends in dec following year --- src/qdate.erl | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/src/qdate.erl b/src/qdate.erl index 0970c18..5a5bd03 100644 --- a/src/qdate.erl +++ b/src/qdate.erl @@ -692,6 +692,9 @@ fix_maybe_improper_date({Date0, Time}) -> Date = fmid(Date0), {Date, Time}. +fix_year_month({Y, M}) when M > 12, M rem 12==0 -> + YearsOver = (M div 12) - 1, + {Y + YearsOver, 12}; fix_year_month({Y, M}) when M > 12 -> YearsOver = M div 12, {Y + YearsOver, M-(YearsOver*12)}; @@ -1275,6 +1278,7 @@ arith_tests(_) -> ?_assertEqual({{2015,2,28},{0,0,0}}, to_date(add_months(2, {{2014,12,31},{0,0,0}}))), ?_assertEqual({{2016,2,28},{0,0,0}}, to_date(add_years(1, {{2015,2,28},{0,0,0}}))), ?_assertEqual({{2014,2,28},{0,0,0}}, to_date(add_months(-24, {{2016,2,29},{0,0,0}}))), + ?_assertEqual({{2018,12,15},{0,0,0}}, to_date(add_months(24, {{2016,12,15},{0,0,0}}))), ?_assertEqual({{2012,2,29},{0,0,0}}, to_date(add_months(-48, {{2016,2,29},{0,0,0}}))), ?_assertEqual({{2016,2,29},{0,0,0}}, to_date(add_months(-1, {{2016,3,31},{0,0,0}}))), ?_assertEqual({{2017,2,28},{0,0,0}}, to_date(add_years(1, {{2016,2,29},{0,0,0}}))), -- 2.14.3
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