Byte.h

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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef _DECAF_LANG_BYTE_H_
#define _DECAF_LANG_BYTE_H_

#include <decaf/util/Config.h>
#include <decaf/lang/Number.h>
#include <decaf/lang/Comparable.h>
#include <decaf/lang/exceptions/NumberFormatException.h>
#include <string>

namespace decaf{
namespace lang{

    class DECAF_API Byte : public Number,
                           public Comparable<Byte>,
                           public Comparable<unsigned char> {
    private:

        unsigned char value;

    public:

        static const unsigned char MIN_VALUE = 0x7F;

        static const unsigned char MAX_VALUE = 0x80;

        static const int SIZE = 8;

    public:

        Byte(unsigned char value);

        Byte(const std::string& value);

        virtual ~Byte() {}

        virtual int compareTo(const Byte& c) const {
            return this->value < c.value ? -1 : (this->value > c.value) ? 1 : 0;
        }

        virtual bool operator==(const Byte& c) const {
            return this->value == c.value;
        }

        virtual bool operator<(const Byte& c) const {
            return this->value < c.value;
        }

        virtual int compareTo(const unsigned char& c) const {
            return this->value < c ? -1 : (this->value > c) ? 1 : 0;
        }

        virtual bool operator==(const unsigned char& c) const {
            return this->value == c;
        }

        virtual bool operator<(const unsigned char& c) const {
            return this->value < c;
        }

        bool equals(const Byte& c) const {
            return this->value == c.value;
        }

        bool equals(const unsigned char& c) const {
            return this->value == c;
        }

        std::string toString() const;

        virtual double doubleValue() const {
            return (double) this->value;
        }

        virtual float floatValue() const {
            return (float) this->value;
        }

        virtual unsigned char byteValue() const {
            return this->value;
        }

        virtual short shortValue() const {
            return (short) this->value;
        }

        virtual int intValue() const {
            return (int) this->value;
        }

        virtual long long longValue() const {
            return (long long) this->value;
        }

    public: // statics

        static std::string toString(unsigned char value);

        static Byte decode(const std::string& value);

        static unsigned char parseByte(const std::string& s, int radix);

        static unsigned char parseByte(const std::string& s);

        static Byte valueOf(unsigned char value) {
            return Byte(value);
        }

        static Byte valueOf(const std::string& value);

        static Byte valueOf(const std::string& value, int radix);

    };

}}

#endif /*_DECAF_LANG_BYTE_H_*/