BinaryInputDevice.cpp

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/****************************************************************************/
// Encapsulates binary reading operations on a file
/****************************************************************************/
// SUMO, Simulation of Urban MObility; see http://sumo.sourceforge.net/
// Copyright 2001-2010 DLR (http://www.dlr.de/) and contributors
/****************************************************************************/
//
//   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.
//
/****************************************************************************/


// ===========================================================================
// included modules
// ===========================================================================
#ifdef _MSC_VER
#include <windows_config.h>
#else
#include <config.h>
#endif

#include <string>
#include "BinaryInputDevice.h"

#ifdef CHECK_MEMORY_LEAKS
#include <foreign/nvwa/debug_new.h>
#endif // CHECK_MEMORY_LEAKS

// ===========================================================================
// constants definitions
// ===========================================================================
#define BUF_MAX 1000


// ===========================================================================
// method definitions
// ===========================================================================
BinaryInputDevice::BinaryInputDevice(const std::string &name) throw()
        : myStream(name.c_str(), std::fstream::in|std::fstream::binary) {}


BinaryInputDevice::~BinaryInputDevice() throw() {}


bool
BinaryInputDevice::good() const throw() {
    return myStream.good();
}


BinaryInputDevice &
operator>>(BinaryInputDevice &os, int &i) throw() {
    os.myStream.read((char*) &i, sizeof(int));
    return os;
}


BinaryInputDevice &
operator>>(BinaryInputDevice &os, unsigned int &i) throw() {
    os.myStream.read((char*) &i, sizeof(unsigned int));
    return os;
}


BinaryInputDevice &
operator>>(BinaryInputDevice &os, SUMOReal &f) throw() {
    os.myStream.read((char*) &f, sizeof(SUMOReal));
    return os;
}


BinaryInputDevice &
operator>>(BinaryInputDevice &os, bool &b) throw() {
    b = 0;
    os.myStream.read((char*) &b, sizeof(char));
    return os;
}


BinaryInputDevice &
operator>>(BinaryInputDevice &os, std::string &s) throw() {
    unsigned int size;
    os >> size;
    if (size<BUF_MAX) {
        os.myStream.read((char*) &os.myBuffer, sizeof(char)*size);
        os.myBuffer[size] = 0;
        s = std::string(os.myBuffer);
        return os;
    }
    return os;
}


BinaryInputDevice &
operator>>(BinaryInputDevice &os, long &l) throw() {
    os.myStream.read((char*) &l, sizeof(long));
    return os;
}



/****************************************************************************/