libutil.h

/*
 * SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
 *
 * This file is part of the KGantt library.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#ifndef __ASCSHARED_UTIL_LIBUTIL_H__
#define __ASCSHARED_UTIL_LIBUTIL_H__
 
// These two macros can be used to force the loading of static objects in static libraries.
// Under normal circumstances, the linker automatically discards unused library symbols from the final executable,
// which is a problem for static objects with a constructor performing a specific action such as registration.
// Note that the export macro only needs to be included once per .cpp file (even if there are many static objects in the file).
// Parameters :
// - ID : an file-wide identifier, e.g. the filename without the extension.
//        It shouldn't be quoted, no spaces, and contain only alphanumerical characters.
#define KDAB_EXPORT_STATIC_SYMBOLS( ID ) int __init_##ID##_static_symbols() { return 0; }
#define KDAB_IMPORT_STATIC_SYMBOLS( ID ) extern int __init_##ID##_static_symbols(); \
    static int fake_init##ID = __init_##ID##_static_symbols();
 
#endif // __ASCSHARED_UTIL_LIBUTIL_H__