interface.c File Reference

#include <sys/types.h>
#include <stdlib.h>
#include "class/interface.h"
#include "commons.h"

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Functions
static int	comp (const void *_a, const void *_b)
iface_ptr	interfaceGet (iface_impl_ptr iface_impl, const iface_ptr _iface)

Detailed Description

Author

Georg Hopp

Copyright

Copyright © 2012 Georg Hopp

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/.

Definition in file interface.c.

Function Documentation

static int comp ( const void *  _a, const void *  _b  )

inlinestatic

Definition at line 32 of file interface.c.

Referenced by interfaceGet(), treeDelete(), treeFind(), and treeInsert().

{
    const struct interface * a = **(const struct interface ***)_a;
    const struct interface * b = **(const struct interface ***)_b;
    return ((a)<(b))? -1 : ((a)>(b))? 1 : 0;
}

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iface_ptr interfaceGet	(	iface_impl_ptr	iface_impl,
		const iface_ptr	_iface
	)

this one is important in selector functions to get the correct interface implementation of a class.

Definition at line 44 of file interface.c.

References comp(), and TRUE.

{
    const iface_ptr * iface = &_iface;
    iface_ptr *       found;

    if (! iface_impl->simpl) {
        qsort((void**)(iface_impl->impl), iface_impl->nimpl, sizeof(iface_ptr), comp);
        iface_impl->simpl=TRUE;
    }

    found = bsearch(
            &iface,
            iface_impl->impl,
            iface_impl->nimpl,
            sizeof(iface_ptr),
            comp);

    return found? *found : (iface_ptr)NULL;
}

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