avassert.h 2.3 KB

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  1. /*
  2. * copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at>
  3. *
  4. * This file is part of FFmpeg.
  5. *
  6. * FFmpeg is free software; you can redistribute it and/or
  7. * modify it under the terms of the GNU Lesser General Public
  8. * License as published by the Free Software Foundation; either
  9. * version 2.1 of the License, or (at your option) any later version.
  10. *
  11. * FFmpeg is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14. * Lesser General Public License for more details.
  15. *
  16. * You should have received a copy of the GNU Lesser General Public
  17. * License along with FFmpeg; if not, write to the Free Software
  18. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19. */
  20. /**
  21. * @file
  22. * simple assert() macros that are a bit more flexible than ISO C assert().
  23. * @author Michael Niedermayer <michaelni@gmx.at>
  24. */
  25. #ifndef AVUTIL_AVASSERT_H
  26. #define AVUTIL_AVASSERT_H
  27. #include <stdlib.h>
  28. #include "avutil.h"
  29. #include "log.h"
  30. /**
  31. * assert() equivalent, that is always enabled.
  32. */
  33. #define av_assert0(cond) do { \
  34. if (!(cond)) { \
  35. av_log(NULL, AV_LOG_PANIC, "Assertion %s failed at %s:%d\n", \
  36. AV_STRINGIFY(cond), __FILE__, __LINE__); \
  37. abort(); \
  38. } \
  39. } while (0)
  40. /**
  41. * assert() equivalent, that does not lie in speed critical code.
  42. * These asserts() thus can be enabled without fearing speed loss.
  43. */
  44. #if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 0
  45. #define av_assert1(cond) av_assert0(cond)
  46. #else
  47. #define av_assert1(cond) ((void)0)
  48. #endif
  49. /**
  50. * assert() equivalent, that does lie in speed critical code.
  51. */
  52. #if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1
  53. #define av_assert2(cond) av_assert0(cond)
  54. #define av_assert2_fpu() av_assert0_fpu()
  55. #else
  56. #define av_assert2(cond) ((void)0)
  57. #define av_assert2_fpu() ((void)0)
  58. #endif
  59. /**
  60. * Assert that floating point operations can be executed.
  61. *
  62. * This will av_assert0() that the cpu is not in MMX state on X86
  63. */
  64. void av_assert0_fpu(void);
  65. #endif /* AVUTIL_AVASSERT_H */