gcc/m2/gm2-libs-iso/LongMath.mod

   1 (* LongMath.mod implement the ISO LongMath specification.
   2
   3 Copyright (C) 2003-2021 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 LongMath ;
  28
  29 IMPORT libm ;
  30 IMPORT cbuiltin ;
  31
  32 PROCEDURE __ATTRIBUTE__ __BUILTIN__ ((__builtin_sqrtl)) sqrt (x: LONGREAL): LONGREAL;
  33   (* Returns the positive square root of x *)
  34 BEGIN
  35    RETURN cbuiltin.sqrtl(x)
  36 END sqrt ;
  37
  38 PROCEDURE __ATTRIBUTE__ __BUILTIN__ ((__builtin_expl)) exp (x: LONGREAL): LONGREAL;
  39   (* Returns the exponential of x *)
  40 BEGIN
  41    RETURN cbuiltin.expl(x)
  42 END exp ;
  43
  44 PROCEDURE __ATTRIBUTE__ __BUILTIN__ ((__builtin_logl)) ln (x: LONGREAL): LONGREAL;
  45   (* Returns the natural logarithm of x *)
  46 BEGIN
  47    RETURN cbuiltin.logl(x)
  48 END ln ;
  49
  50   (* The angle in all trigonometric functions is measured in radians *)
  51
  52 PROCEDURE __ATTRIBUTE__ __BUILTIN__ ((__builtin_sinl)) sin (x: LONGREAL): LONGREAL;
  53   (* Returns the sine of x *)
  54 BEGIN
  55    RETURN cbuiltin.sinl(x)
  56 END sin ;
  57
  58 PROCEDURE __ATTRIBUTE__ __BUILTIN__ ((__builtin_cosl)) cos (x: LONGREAL): LONGREAL;
  59   (* Returns the cosine of x *)
  60 BEGIN
  61    RETURN cbuiltin.cosl(x)
  62 END cos ;
  63
  64 PROCEDURE tan (x: LONGREAL): LONGREAL;
  65   (* Returns the tangent of x *)
  66 BEGIN
  67    RETURN libm.tanl(x)
  68 END tan ;
  69
  70 PROCEDURE arcsin (x: LONGREAL): LONGREAL;
  71   (* Returns the arcsine of x *)
  72 BEGIN
  73    RETURN libm.asinl(x)
  74 END arcsin ;
  75
  76 PROCEDURE arccos (x: LONGREAL): LONGREAL;
  77   (* Returns the arccosine of x *)
  78 BEGIN
  79    RETURN libm.acosl(x)
  80 END arccos ;
  81
  82 PROCEDURE arctan (x: LONGREAL): LONGREAL;
  83   (* Returns the arctangent of x *)
  84 BEGIN
  85    RETURN libm.atanl(x)
  86 END arctan ;
  87
  88 PROCEDURE power (base, exponent: LONGREAL): LONGREAL;
  89   (* Returns the value of the number base raised to the power exponent *)
  90 BEGIN
  91    RETURN libm.powl(base, exponent)
  92 END power ;
  93
  94 PROCEDURE round (x: LONGREAL) : INTEGER;
  95   (* Returns the value of x rounded to the nearest integer *)
  96 BEGIN
  97    RETURN TRUNC(x)
  98 END round ;
  99
 100 PROCEDURE IsRMathException (): BOOLEAN;
 101   (* Returns TRUE if the current coroutine is in the
 102      exceptional execution state because of the raising
 103      of an exception in a routine from this module; otherwise
 104      returns FALSE.
 105   *)
 106 BEGIN
 107    RETURN FALSE
 108 END IsRMathException ;
 109
 110 END LongMath.