1 | /* Decimal floating point support functions for GNU compiler. |
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2 | Copyright (C) 2005-2017 Free Software Foundation, Inc. |

3 | |

4 | This file is part of GCC. |

5 | |

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

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

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

9 | version. |

10 | |

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

12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or |

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

14 | for more details. |

15 | |

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

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

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

19 | |

20 | #ifndef GCC_DFP_H |

21 | #define GCC_DFP_H |

22 | |

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

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

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

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

27 | |

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

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

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

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

32 | |

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

34 | int decimal_do_compare (const REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *, int); |

35 | void decimal_real_from_string (REAL_VALUE_TYPE *, const char *); |

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

37 | void decimal_real_convert (REAL_VALUE_TYPE *, const real_format *, |

38 | const REAL_VALUE_TYPE *); |

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

40 | void decimal_do_fix_trunc (REAL_VALUE_TYPE *, const REAL_VALUE_TYPE *); |

41 | void decimal_real_maxval (REAL_VALUE_TYPE *, int, machine_mode); |

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

43 | HOST_WIDE_INT decimal_real_to_integer (const REAL_VALUE_TYPE *); |

44 | |

45 | #ifdef TREE_CODE |

46 | bool decimal_real_arithmetic (REAL_VALUE_TYPE *, enum tree_code, const REAL_VALUE_TYPE *, |

47 | const REAL_VALUE_TYPE *); |

48 | #endif |

49 | |

50 | #endif /* GCC_DFP_H */ |

51 |