cfloat 2.0 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061
  1. // -*- C++ -*- forwarding header.
  2. // Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
  3. // 2006, 2007, 2008, 2009
  4. // Free Software Foundation, Inc.
  5. //
  6. // This file is part of the GNU ISO C++ Library. This library is free
  7. // software; you can redistribute it and/or modify it under the
  8. // terms of the GNU General Public License as published by the
  9. // Free Software Foundation; either version 3, or (at your option)
  10. // any later version.
  11. // This library 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
  14. // GNU General Public License for more details.
  15. // Under Section 7 of GPL version 3, you are granted additional
  16. // permissions described in the GCC Runtime Library Exception, version
  17. // 3.1, as published by the Free Software Foundation.
  18. // You should have received a copy of the GNU General Public License and
  19. // a copy of the GCC Runtime Library Exception along with this program;
  20. // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
  21. // <http://www.gnu.org/licenses/>.
  22. /** @file include/cfloat
  23. * This is a Standard C++ Library file. You should @c #include this file
  24. * in your programs, rather than any of the "*.h" implementation files.
  25. *
  26. * This is the C++ version of the Standard C Library header @c float.h,
  27. * and its contents are (mostly) the same as that header, but are all
  28. * contained in the namespace @c std (except for names which are defined
  29. * as macros in C).
  30. */
  31. //
  32. // ISO C++ 14882: 18.2.2 Implementation properties: C library
  33. //
  34. #pragma GCC system_header
  35. #include <float.h>
  36. #ifndef _GLIBCXX_CFLOAT
  37. #define _GLIBCXX_CFLOAT 1
  38. #ifdef __GXX_EXPERIMENTAL_CXX0X__
  39. # if defined(_GLIBCXX_INCLUDE_AS_TR1)
  40. # error C++0x header cannot be included from TR1 header
  41. # endif
  42. # ifndef DECIMAL_DIG
  43. # define DECIMAL_DIG __DECIMAL_DIG__
  44. # endif
  45. # ifndef FLT_EVAL_METHOD
  46. # define FLT_EVAL_METHOD __FLT_EVAL_METHOD__
  47. # endif
  48. #endif
  49. #endif