gcc/fortran/arith.h

   1 /* Compiler arithmetic header.
   2    Copyright (C) 2000, 2001. 2002 Free Software Foundation, Inc.
   3    Contributed by Steven Bosscher
   4
   5 This file is part of GNU G95.
   6
   7 GNU G95 is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU G95 is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU G95; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22
  23 #ifndef GFC_ARITH_H
  24 #define GFC_ARITH_H
  25
  26 #include "gfortran.h"
  27
  28 /* Constants calculated during initialization.  */
  29 extern mpf_t pi, half_pi, two_pi, e;
  30
  31 /* Calculate mathematically interesting functions.  */
  32 void natural_logarithm (mpf_t *, mpf_t *);
  33 void common_logarithm (mpf_t *, mpf_t *);
  34 void exponential (mpf_t *, mpf_t *);
  35 void sine (mpf_t *, mpf_t *);
  36 void cosine (mpf_t *, mpf_t *);
  37 void arctangent (mpf_t *, mpf_t *);
  38 void arctangent2 (mpf_t *, mpf_t *, mpf_t *);
  39 void hypercos (mpf_t *, mpf_t *);
  40 void hypersine (mpf_t *, mpf_t *);
  41
  42 /* Return a constant result of a given type and kind, with locus.  */
  43 gfc_expr *gfc_constant_result (bt, int, locus *);
  44
  45 /* Make sure a gfc_expr expression is within its allowed range.  Checks
  46    for overflow and underflow.  */
  47 arith gfc_range_check (gfc_expr *);
  48
  49 int gfc_compare_expr (gfc_expr *, gfc_expr *);
  50 int gfc_compare_string (gfc_expr *, gfc_expr *, const int *);
  51
  52 /* Constant folding for gfc_expr trees.  */
  53 gfc_expr *gfc_uplus (gfc_expr * op);
  54 gfc_expr *gfc_uminus (gfc_expr * op);
  55 gfc_expr *gfc_add (gfc_expr *, gfc_expr *);
  56 gfc_expr *gfc_subtract (gfc_expr *, gfc_expr *);
  57 gfc_expr *gfc_multiply (gfc_expr *, gfc_expr *);
  58 gfc_expr *gfc_divide (gfc_expr *, gfc_expr *);
  59 gfc_expr *gfc_power (gfc_expr *, gfc_expr *);
  60 gfc_expr *gfc_concat (gfc_expr *, gfc_expr *);
  61 gfc_expr *gfc_and (gfc_expr *, gfc_expr *);
  62 gfc_expr *gfc_or (gfc_expr *, gfc_expr *);
  63 gfc_expr *gfc_not (gfc_expr *);
  64 gfc_expr *gfc_eqv (gfc_expr *, gfc_expr *);
  65 gfc_expr *gfc_neqv (gfc_expr *, gfc_expr *);
  66 gfc_expr *gfc_eq (gfc_expr *, gfc_expr *);
  67 gfc_expr *gfc_ne (gfc_expr *, gfc_expr *);
  68 gfc_expr *gfc_gt (gfc_expr *, gfc_expr *);
  69 gfc_expr *gfc_ge (gfc_expr *, gfc_expr *);
  70 gfc_expr *gfc_lt (gfc_expr *, gfc_expr *);
  71 gfc_expr *gfc_le (gfc_expr *, gfc_expr *);
  72
  73 /* Convert strings to literal constants.  */
  74 gfc_expr *gfc_convert_integer (const char *, int, int, locus *);
  75 gfc_expr *gfc_convert_real (const char *, int, locus *);
  76 gfc_expr *gfc_convert_complex (gfc_expr *, gfc_expr *, int);
  77
  78 /* Convert a constant of one kind to another kind.  */
  79 gfc_expr *gfc_int2int (gfc_expr *, int);
  80 gfc_expr *gfc_int2real (gfc_expr *, int);
  81 gfc_expr *gfc_int2complex (gfc_expr *, int);
  82 gfc_expr *gfc_real2int (gfc_expr *, int);
  83 gfc_expr *gfc_real2real (gfc_expr *, int);
  84 gfc_expr *gfc_real2complex (gfc_expr *, int);
  85 gfc_expr *gfc_complex2int (gfc_expr *, int);
  86 gfc_expr *gfc_complex2real (gfc_expr *, int);
  87 gfc_expr *gfc_complex2complex (gfc_expr *, int);
  88 gfc_expr *gfc_log2log (gfc_expr *, int);
  89
  90 #endif /* GFC_ARITH_H  */
  91