gcc/m2/gm2-libs/SMathLib0.mod

   1 (* SMathLib0.mod provide access to the SHORTREAL instrinics.
   2
   3 Copyright (C) 2009-2024 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 IMPLEMENTATION MODULE SMathLib0 ;
  28
  29 IMPORT cbuiltin, libm ;
  30
  31 PROCEDURE __ATTRIBUTE__ __BUILTIN__ ((__builtin_sqrtf)) sqrt (x: SHORTREAL): SHORTREAL;
  32 BEGIN
  33    RETURN cbuiltin.sqrtf (x)
  34 END sqrt ;
  35
  36 PROCEDURE exp (x: SHORTREAL) : SHORTREAL ;
  37 BEGIN
  38    RETURN libm.expf (x)
  39 END exp ;
  40
  41
  42 (*
  43                 log (b)
  44    log (b)  =      c
  45       a         ------
  46                 log (a)
  47                    c
  48 *)
  49
  50 PROCEDURE ln (x: SHORTREAL) : SHORTREAL ;
  51 BEGIN
  52    RETURN libm.logf (x) / libm.logf (exp1)
  53 END ln ;
  54
  55 PROCEDURE __ATTRIBUTE__  __BUILTIN__ ((__builtin_sinf)) sin (x: SHORTREAL) : SHORTREAL ;
  56 BEGIN
  57    RETURN cbuiltin.sinf (x)
  58 END sin ;
  59
  60 PROCEDURE __ATTRIBUTE__  __BUILTIN__ ((__builtin_cosf)) cos (x: SHORTREAL) : SHORTREAL ;
  61 BEGIN
  62    RETURN cbuiltin.cosf (x)
  63 END cos ;
  64
  65 PROCEDURE tan (x: SHORTREAL) : SHORTREAL ;
  66 BEGIN
  67    RETURN libm.tanf (x)
  68 END tan ;
  69
  70 PROCEDURE arctan (x: SHORTREAL) : SHORTREAL ;
  71 BEGIN
  72    RETURN libm.atanf (x)
  73 END arctan ;
  74
  75 PROCEDURE entier (x: SHORTREAL) : INTEGER ;
  76 BEGIN
  77    RETURN TRUNC (libm.floorf (x))
  78 END entier ;
  79
  80
  81 END SMathLib0.