src/main/config/config_reset.h

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