gcc/m2/gm2-libs-pim/FloatingUtilities.def

   1 (* FloatingUtilities.def provides a Logitech compatible library.
   2
   3 Copyright (C) 2005-2023 Free Software Foundation, Inc.
   4 Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>.
   5
   6 This file is part of GNU Modula-2.
   7
   8 GNU Modula-2 is free software; you can redistribute it and/or modify
   9 it under the terms of the GNU General Public License as published by
  10 the Free Software Foundation; either version 3, or (at your option)
  11 any later version.
  12
  13 GNU Modula-2 is distributed in the hope that it will be useful, but
  14 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 Under Section 7 of GPL version 3, you are granted additional
  19 permissions described in the GCC Runtime Library Exception, version
  20 3.1, as published by the Free Software Foundation.
  21
  22 You should have received a copy of the GNU General Public License and
  23 a copy of the GCC Runtime Library Exception along with this program;
  24 see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
  25 <http://www.gnu.org/licenses/>.  *)
  26
  27 DEFINITION MODULE FloatingUtilities ;
  28
  29 EXPORT QUALIFIED Frac, Round, Float, Trunc,
  30                  Fracl, Roundl, Floatl, Truncl ;
  31
  32
  33 (*
  34    Frac - returns the fractional component of, r.
  35 *)
  36
  37 PROCEDURE Frac (r: REAL) : REAL ;
  38
  39
  40 (*
  41    Int - returns the integer part of r. It rounds the value towards zero.
  42 *)
  43
  44 PROCEDURE Int (r: REAL) : INTEGER ;
  45
  46
  47 (*
  48    Round - returns the number rounded to the nearest integer.
  49 *)
  50
  51 PROCEDURE Round (r: REAL) : INTEGER ;
  52
  53
  54 (*
  55    Float - returns a REAL value corresponding to, i.
  56 *)
  57
  58 PROCEDURE Float (i: INTEGER) : REAL ;
  59
  60
  61 (*
  62    Trunc - round to the nearest integer not larger in absolute
  63            value.
  64 *)
  65
  66 PROCEDURE Trunc (r: REAL) : INTEGER ;
  67
  68
  69 (*
  70    Fracl - returns the fractional component of, r.
  71 *)
  72
  73 PROCEDURE Fracl (r: LONGREAL) : LONGREAL ;
  74
  75
  76 (*
  77    Intl - returns the integer part of r. It rounds the value towards zero.
  78 *)
  79
  80 PROCEDURE Intl (r: LONGREAL) : LONGINT ;
  81
  82
  83 (*
  84    Roundl - returns the number rounded to the nearest integer.
  85 *)
  86
  87 PROCEDURE Roundl (r: LONGREAL) : LONGINT ;
  88
  89
  90 (*
  91    Floatl - returns a REAL value corresponding to, i.
  92 *)
  93
  94 PROCEDURE Floatl (i: INTEGER) : LONGREAL ;
  95
  96
  97 (*
  98    Truncl - round to the nearest integer not larger in absolute
  99             value.
 100 *)
 101
 102 PROCEDURE Truncl (r: LONGREAL) : LONGINT ;
 103
 104
 105 END FloatingUtilities.