util-isnumberunsigned.c (1139B)
1 // $Id$ --*- c -*-- 2 3 // Copyright (C) 2005 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de> 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; version 2 of the License. 8 // 9 // This program is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU General Public License for more details. 13 // 14 // You should have received a copy of the GNU General Public License 15 // along with this program; if not, write to the Free Software 16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17 18 19 #ifdef HAVE_CONFIG_H 20 # include <config.h> 21 #endif 22 23 #include "util.h" 24 #include "util-isnumber.hc" 25 #include <limits.h> 26 27 static inline bool 28 checkConstraints(unsigned long val, unsigned int fac) 29 { 30 if ((long)(val) < 0) return false; 31 if (ULONG_MAX/fac <= val) return false; 32 return true; 33 } 34 35 ENSC_DECL_UTIL_ISNUMBER(isNumberUnsigned, unsigned long, strtoul)