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dfp.h

dfp.h 2.3 KB
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  1. /* Decimal floating point support functions for GNU compiler.
    2. 

  2.    Copyright (C) 2005-2015 Free Software Foundation, Inc.
    3. 

  3. 

  4. This file is part of GCC.
    5. 

  5. 

  6. GCC is free software; you can redistribute it and/or modify it under
    7. 

  7. the terms of the GNU General Public License as published by the Free
    8. 

  8. Software Foundation; either version 3, or (at your option) any later
    9. 

  9. version.
    10. 

  10. 

  11. GCC is distributed in the hope that it will be useful, but WITHOUT ANY
    12. 

  12. WARRANTY; without even the implied warranty of MERCHANTABILITY or
    13. 

  13. FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    14. 

  14. for more details.
    15. 

  15. 

  16. You should have received a copy of the GNU General Public License
    17. 

  17. along with GCC; see the file COPYING3.  If not see
    18. 

  18. <http://www.gnu.org/licenses/>.  */
    19. 

  19. 

  20. #ifndef GCC_DFP_H
    21. 

  21. #define GCC_DFP_H
    22. 

  22. 

  23. /* Encode REAL_VALUE_TYPEs into 32/64/128-bit IEEE 754 encoded values.  */
    24. 

  24. void encode_decimal32  (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *);
    25. 

  25. void encode_decimal64  (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *);
    26. 

  26. void decode_decimal128 (const struct real_format *, REAL_VALUE_TYPE *, const long *);
    27. 

  27. 

  28. /* Decode 32/64/128-bit IEEE 754 encoded values into REAL_VALUE_TYPEs.  */
    29. 

  29. void decode_decimal32  (const struct real_format *, REAL_VALUE_TYPE *, const long *);
    30. 

  30. void decode_decimal64  (const struct real_format *, REAL_VALUE_TYPE *, const long *);
    31. 

  31. void encode_decimal128 (const struct real_format *fmt, long *, const REAL_VALUE_TYPE *);
    32. 

  32. 

  33. /* Arithmetic and conversion functions.  */
    34. 

  34. int  decimal_do_compare (const REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *, int);
    35. 

  35. void decimal_real_from_string (REAL_VALUE_TYPE *, const char *);
    36. 

  36. void decimal_round_for_format (const struct real_format *, REAL_VALUE_TYPE *);
    37. 

  37. void decimal_real_convert (REAL_VALUE_TYPE *, machine_mode, const REAL_VALUE_TYPE *);
    38. 

  38. void decimal_real_to_decimal (char *, const REAL_VALUE_TYPE *, size_t, size_t, int);
    39. 

  39. void decimal_do_fix_trunc (REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *);
    40. 

  40. void decimal_real_maxval (REAL_VALUE_TYPE *, int, machine_mode);
    41. 

  41. wide_int decimal_real_to_integer (const REAL_VALUE_TYPE *, bool *, int);
    42. 

  42. HOST_WIDE_INT decimal_real_to_integer (const REAL_VALUE_TYPE *);
    43. 

  43. 

  44. #ifdef TREE_CODE
    45. 

  45. bool decimal_real_arithmetic (REAL_VALUE_TYPE *, enum tree_code, const REAL_VALUE_TYPE *,
    46. 

  46. 			      const REAL_VALUE_TYPE *);
    47. 

  47. #endif
    48. 

  48. 

  49. #endif /* GCC_DFP_H */
    50.