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// Copyright © 2015 Richard Kettlewell.
//
// 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 3 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, see <http://www.gnu.org/licenses/>.
#include <config.h>
#include "rsbackup.h"
#include "Errors.h"
#include "Utils.h"
#include <cstdlib>
#include <cerrno>

double parseFloat(const std::string &s,
                  double min, double max) {
  errno = 0;
  const char *sc = s.c_str();
  char *e;
  double n = strtod(sc, &e);
  if(errno)
    throw SyntaxError("invalid number '" + s + "': " + strerror(errno));
  if(*e || e == sc)
    throw SyntaxError("invalid number '" + s + "'");
  if(n > max || n < min)
    throw SyntaxError("number '" + s + "' out of range");
  return n;
}