src/main/config/config_reset.h

   1 /*
   2  * This file is part of Cleanflight and Betaflight.
   3  *
   4  * Cleanflight and Betaflight are free software. You can redistribute
   5  * this software and/or modify this software under the terms of the
   6  * GNU General Public License as published by the Free Software
   7  * Foundation, either version 3 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * Cleanflight and Betaflight are distributed in the hope that they
  11  * will be useful, but WITHOUT ANY WARRANTY; without even the implied
  12  * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  13  * See the GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this software.
  17  *
  18  * If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #pragma once
  22
  23 #ifndef __UNIQL
  24 # define __UNIQL_CONCAT2(x,y) x ## y
  25 # define __UNIQL_CONCAT(x,y) __UNIQL_CONCAT2(x,y)
  26 # define __UNIQL(x) __UNIQL_CONCAT(x,__LINE__)
  27 #endif
  28
  29 // overwrite _name with data passed as arguments. This version forces GCC to really copy data
  30 // It is not possible to use multiple RESET_CONFIGs on single line (__UNIQL limitation)
  31 #define RESET_CONFIG(_type, _name, ...)                                 \
  32     static const _type __UNIQL(_reset_template_) = {                    \
  33         __VA_ARGS__                                                     \
  34     };                                                                  \
  35     memcpy((_name), &__UNIQL(_reset_template_), sizeof(*(_name)));      \
  36     /**/
  37
  38 // overwrite _name with data passed as arguments. GCC is allowed to set structure field-by-field
  39 #define RESET_CONFIG_2(_type, _name, ...)                 \
  40     *(_name) = (_type) {                                  \
  41         __VA_ARGS__                                       \
  42     };                                                    \
  43     /**/