1 /* Reentrant time functions like localtime_r. 2 3 Copyright (C) 2003, 2006-2007, 2010-2020 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3, or (at your option) 8 any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License along 16 with this program; if not, see <https://www.gnu.org/licenses/>. */ 17 18 /* Written by Paul Eggert. */ 19 20 #include <config.h> 21 22 #include <time.h> 23 24 static struct tm * 25 copy_tm_result (struct tm *dest, struct tm const *src) 26 { 27 if (! src) 28 return 0; 29 *dest = *src; 30 return dest; 31 } 32 33 34 struct tm * 35 gmtime_r (time_t const * restrict t, struct tm * restrict tp) 36 { 37 return copy_tm_result (tp, gmtime (t)); 38 } 39 40 struct tm * 41 localtime_r (time_t const * restrict t, struct tm * restrict tp) 42 { 43 return copy_tm_result (tp, localtime (t)); 44 } 45