strtol.c (1230B)
1 /* -*-comment-start: "//";comment-end:""-*- 2 * GNU Mes --- Maxwell Equations of Software 3 * Copyright © 2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org> 4 * 5 * This file is part of GNU Mes. 6 * 7 * GNU Mes is free software; you can redistribute it and/or modify it 8 * under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 3 of the License, or (at 10 * your option) any later version. 11 * 12 * GNU Mes is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with GNU Mes. If not, see <http://www.gnu.org/licenses/>. 19 */ 20 21 #include <mes/lib.h> 22 #include <stdlib.h> 23 #include <string.h> 24 25 long 26 strtol (char const *string, char **tailptr, int base) 27 { 28 if (!strncmp (string, "0x", 2)) 29 { 30 string += 2; 31 base = 16; 32 } 33 if (tailptr) 34 { 35 *tailptr = (char *) string; 36 return abtol ((char const **) tailptr, base); 37 } 38 char **p = (char **) &string; 39 return abtol ((char const **) p, base); 40 }