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/*

 * QFloat Module

 *

 * Copyright (C) 2009 Red Hat Inc.

 *

 * Authors:

 *  Luiz Capitulino <lcapitulino@redhat.com>

 *

 * This work is licensed under the terms of the GNU GPL, version 2.  See

 * the COPYING file in the top-level directory.

 *

 * Copyright IBM, Corp. 2009

 *

 * Authors:

 *  Anthony Liguori   <aliguori@us.ibm.com>

 *

 * This work is licensed under the terms of the GNU LGPL, version 2.1 or later.

 * See the COPYING.LIB file in the top-level directory.

 *

 */

#include "qfloat.h"

#include "qobject.h"

#include "qemu-common.h"

static void qfloat_destroy_obj(QObject *obj);

static const QType qfloat_type = {

    .code = QTYPE_QFLOAT,

    .destroy = qfloat_destroy_obj,

};

/**

 * qfloat_from_int(): Create a new QFloat from a float

 *

 * Return strong reference.

 */

QFloat *qfloat_from_double(double value)

{

    QFloat *qf;

    qf = qemu_malloc(sizeof(*qf));

    qf->value = value;

    QOBJECT_INIT(qf, &qfloat_type);

    return qf;

}

/**

 * qfloat_get_double(): Get the stored float

 */

double qfloat_get_double(const QFloat *qf)

{

    return qf->value;

}

/**

 * qobject_to_qfloat(): Convert a QObject into a QFloat

 */

QFloat *qobject_to_qfloat(const QObject *obj)

{

    if (qobject_type(obj) != QTYPE_QFLOAT)

        return NULL;

    return container_of(obj, QFloat, base);

}

/**

 * qfloat_destroy_obj(): Free all memory allocated by a

 * QFloat object

 */

static void qfloat_destroy_obj(QObject *obj)

{

    assert(obj != NULL);

    qemu_free(qobject_to_qfloat(obj));

}