// Copyright (C) 1999,2000 Bruce Guenter <bruceg@em.ca>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#include <config.h>
#include <ctype.h>
#include <limits.h>

unsigned strtou(const char* ptr, const char** endptr)
{
  unsigned uint = 0;
  if(ptr) {
    while(*ptr && isspace(*ptr))
      ++ptr;
    if(*ptr == '-') {
      uint = UINT_MAX;
      ++ptr;
      while(isdigit(*ptr))
	++ptr;
    }
    else {
      uint = 0;
      while(isdigit(*ptr))
	uint = (uint * 10) + (*ptr++ - '0');
    }
  }
  if(endptr)
    *endptr = ptr;
  return uint;
}