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period_diff.cc
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/* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
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*
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* Copyright (C) 2008 Sun Microsystems, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <config.h>
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#include <drizzled/function/time/period_diff.h>
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#include <
drizzled/calendar.h
>
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namespace
drizzled
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{
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int64_t
Item_func_period_diff::val_int
()
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{
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assert(
fixed
== 1);
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uint32_t period1= (uint32_t)args[0]->
val_int
();
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uint32_t period2= (uint32_t)args[1]->
val_int
();
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if
((
null_value
=args[0]->
null_value
|| args[1]->
null_value
))
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return
0;
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return
(int64_t) (
year_month_to_months
(period1) -
year_month_to_months
(period2));
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}
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}
/* namespace drizzled */
drizzled::Item::fixed
bool fixed
Definition:
item.h:120
drizzled::Item_func_period_diff::val_int
int64_t val_int()
Definition:
period_diff.cc:28
drizzled::year_month_to_months
uint32_t year_month_to_months(uint32_t year_month)
Definition:
calendar.cc:471
drizzled::Item::null_value
bool null_value
Definition:
item.h:122
calendar.h
drizzled
function
time
period_diff.cc
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