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574.3.17
by Lee
moving functions from item_timefunc to functions/time directory |
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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
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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 <drizzled/server_includes.h> |
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#include CSTDINT_H
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670.1.20
by Monty Taylor
Renamed functions to function... everything else is singular. |
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#include <drizzled/function/time/makedate.h> |
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574.3.17
by Lee
moving functions from item_timefunc to functions/time directory |
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/**
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MAKEDATE(a,b) is a date function that creates a date value
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from a year and day value.
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NOTES:
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As arguments are integers, we can't know if the year is a 2 digit or 4 digit year.
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In this case we treat all years < 100 as 2 digit years. Ie, this is not safe
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for dates between 0000-01-01 and 0099-12-31
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*/
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String *Item_func_makedate::val_str(String *str) |
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{
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assert(fixed == 1); |
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DRIZZLE_TIME l_time; |
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long daynr= (long) args[1]->val_int(); |
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long year= (long) args[0]->val_int(); |
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long days; |
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if (args[0]->null_value || args[1]->null_value || |
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year < 0 || daynr <= 0) |
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goto err; |
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if (year < 100) |
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year= year_2000_handling(year); |
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days= calc_daynr(year,1,1) + daynr - 1; |
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/* Day number from year 0 to 9999-12-31 */
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if (days >= 0 && days <= MAX_DAY_NUMBER) |
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{
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null_value=0; |
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get_date_from_daynr(days,&l_time.year,&l_time.month,&l_time.day); |
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if (str->alloc(MAX_DATE_STRING_REP_LENGTH)) |
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goto err; |
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make_date((DATE_TIME_FORMAT *) 0, &l_time, str); |
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return str; |
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}
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err: |
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null_value=1; |
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return 0; |
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}
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/*
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MAKEDATE(a,b) is a date function that creates a date value
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from a year and day value.
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NOTES:
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As arguments are integers, we can't know if the year is a 2 digit or 4 digit year.
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In this case we treat all years < 100 as 2 digit years. Ie, this is not safe
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for dates between 0000-01-01 and 0099-12-31
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*/
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int64_t Item_func_makedate::val_int() |
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{
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assert(fixed == 1); |
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DRIZZLE_TIME l_time; |
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long daynr= (long) args[1]->val_int(); |
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long year= (long) args[0]->val_int(); |
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long days; |
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if (args[0]->null_value || args[1]->null_value || |
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year < 0 || daynr <= 0) |
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goto err; |
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if (year < 100) |
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year= year_2000_handling(year); |
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days= calc_daynr(year,1,1) + daynr - 1; |
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/* Day number from year 0 to 9999-12-31 */
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if (days >= 0 && days < MAX_DAY_NUMBER) |
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{
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null_value=0; |
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get_date_from_daynr(days,&l_time.year,&l_time.month,&l_time.day); |
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return (int64_t) (l_time.year * 10000L + l_time.month * 100 + l_time.day); |
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}
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err: |
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null_value= 1; |
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return 0; |
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}
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