lmms_constants.h 1.8 KB

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  1. /*
  2. * lmms_constants.h - defines system constants
  3. *
  4. * Copyright (c) 2006 Danny McRae <khjklujn/at/users.sourceforge.net>
  5. *
  6. * This file is part of LMMS - https://lmms.io
  7. *
  8. * This program is free software; you can redistribute it and/or
  9. * modify it under the terms of the GNU General Public
  10. * License as published by the Free Software Foundation; either
  11. * version 2 of the License, or (at your option) any later version.
  12. *
  13. * This program is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16. * General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public
  19. * License along with this program (see COPYING); if not, write to the
  20. * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  21. * Boston, MA 02110-1301 USA.
  22. *
  23. */
  24. #ifndef LMMS_CONSTANTS_H
  25. #define LMMS_CONSTANTS_H
  26. const long double LD_PI = 3.14159265358979323846264338327950288419716939937510;
  27. const long double LD_2PI = LD_PI * 2.0;
  28. const long double LD_PI_2 = LD_PI * 0.5;
  29. const long double LD_PI_R = 1.0 / LD_PI;
  30. const long double LD_PI_SQR = LD_PI * LD_PI;
  31. const long double LD_E = 2.71828182845904523536028747135266249775724709369995;
  32. const long double LD_E_R = 1.0 / LD_E;
  33. const double D_PI = (double) LD_PI;
  34. const double D_2PI = (double) LD_2PI;
  35. const double D_PI_2 = (double) LD_PI_2;
  36. const double D_PI_R = (double) LD_PI_R;
  37. const double D_PI_SQR = (double) LD_PI_SQR;
  38. const double D_E = (double) LD_E;
  39. const double D_E_R = (double) LD_E_R;
  40. const float F_PI = (float) LD_PI;
  41. const float F_2PI = (float) LD_2PI;
  42. const float F_PI_2 = (float) LD_PI_2;
  43. const float F_PI_R = (float) LD_PI_R;
  44. const float F_PI_SQR = (float) LD_PI_SQR;
  45. const float F_E = (float) LD_E;
  46. const float F_E_R = (float) LD_E_R;
  47. #endif