macros.h 1.2 KB

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  1. /*
  2. voltlogger_oscilloscope
  3. Copyright (C) 2015 Dmitry Yu Okunev <dyokunev@ut.mephi.ru> 0x8E30679C
  4. This program 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. This program is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  11. GNU General Public License for more details.
  12. You should have received a copy of the GNU General Public License
  13. along with this program. If not, see <http://www.gnu.org/licenses/>.
  14. */
  15. #ifdef _GNU_SOURCE
  16. # ifndef likely
  17. # define likely(x) __builtin_expect(!!(x), 1)
  18. # endif
  19. # ifndef unlikely
  20. # define unlikely(x) __builtin_expect(!!(x), 0)
  21. # endif
  22. #else
  23. # ifndef likely
  24. # define likely(x) (x)
  25. # endif
  26. # ifndef unlikely
  27. # define unlikely(x) (x)
  28. # endif
  29. #endif
  30. #define TOSTR(a) # a
  31. #define XTOSTR(a) TOSTR(a)
  32. #define MAX(a, b) (((a)>(b)) ? (a) : (b))
  33. #define MIN(a, b) (((a)<(b)) ? (a) : (b))
  34. #define STDIN 0
  35. #define STDOUT 1
  36. #define STDERR 2