config.h

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// -*- lsst-c++ -*-
/*
 * This file is part of pex_config.
 *
 * Developed for the LSST Data Management System.
 * This product includes software developed by the LSST Project
 * (http://www.lsst.org).
 * See the COPYRIGHT file at the top-level directory of this distribution
 * for details of code ownership.
 *
 * This software is dual licensed under the GNU General Public License and also
 * under a 3-clause BSD license. Recipients may choose which of these licenses
 * to use; please see the files gpl-3.0.txt and/or bsd_license.txt,
 * respectively.  If you choose the GPL option then the following text applies
 * (but note that there is still no warranty even if you opt for BSD instead):
 *
 * 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/>.
 */
 
#ifndef LSST_PEX_CONFIG_H
#define LSST_PEX_CONFIG_H

#define LSST_CONTROL_FIELD(NAME, TYPE, DOC)             \
    static char const * _doc_ ## NAME() {               \
        static char const * doc = DOC;                  \
        return doc;                                     \
    }                                                   \
    static char const * _type_ ## NAME() {              \
        static char const * type = #TYPE;               \
        return type;                                    \
    }                                                   \
    TYPE NAME
#define LSST_CONTROL_FIELD(NAME, TYPE, DOC)             \ …

#define LSST_NESTED_CONTROL_FIELD(NAME, MODULE, TYPE, DOC)       \
    static char const * _doc_ ## NAME() {                        \
        static char const * doc = DOC;                           \
        return doc;                                              \
    }                                                            \
    static char const * _type_ ## NAME() {                       \
        static char const * type = #TYPE;                        \
        return type;                                             \
    }                                                            \
    static char const * _module_ ## NAME() {                     \
        static char const * mod = #MODULE;                       \
        return mod;                                              \
    }                                                            \
    TYPE NAME
#define LSST_NESTED_CONTROL_FIELD(NAME, MODULE, TYPE, DOC)       \ …
 
#endif