validator_double.h

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// Copyright (c) 2006-2025  Made to Order Software Corp.  All Rights Reserved
//
// https://snapwebsites.org/project/advgetopt
// contact@m2osw.com
//
// 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.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#pragma once
 
// self
//
#include    <advgetopt/validator.h>
 
 
// C++
//
#include    <limits>
 
 
 
namespace advgetopt
{
 
 
 
class validator_double
    : public validator
{
public:
    typedef bool (*to_double_t)(std::string const & number
                               , double & result);
 
                                validator_double(string_list_t const & data);
 
    // validator implementation
    //
    virtual std::string         name() const override;
    virtual bool                validate(std::string const & value) const override;
 
    static bool                 convert_string(std::string const & number
                                             , double & result);
 
private:
    struct range_t
    {
        typedef std::vector<range_t>    vector_t;
 
        double            f_minimum = std::numeric_limits<double>::min();
        double            f_maximum = std::numeric_limits<double>::max();
    };
 
    range_t::vector_t           f_allowed_values = range_t::vector_t();
};
 
 
 
}   // namespace advgetopt
// vim: ts=4 sw=4 et