gcc/fortran/arith.h

   1 /* Compiler arithmetic header.
   2    Copyright (C) 2000, 2001, 2002, 2004 Free Software Foundation, Inc.
   3    Contributed by Steven Bosscher
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify it under
   8 the terms of the GNU General Public License as published by the Free
   9 Software Foundation; either version 2, or (at your option) any later
  10 version.
  11
  12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  15 for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING.  If not, write to the Free
  19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
  20 02111-1307, USA.  */
  21
  22 #ifndef GFC_ARITH_H
  23 #define GFC_ARITH_H
  24
  25 #include "gfortran.h"
  26
  27 /* Constants calculated during initialization.  */
  28 extern mpf_t pi, half_pi, two_pi, e;
  29
  30 /* Calculate mathematically interesting functions.  */
  31 void natural_logarithm (mpf_t *, mpf_t *);
  32 void common_logarithm (mpf_t *, mpf_t *);
  33 void exponential (mpf_t *, mpf_t *);
  34 void sine (mpf_t *, mpf_t *);
  35 void cosine (mpf_t *, mpf_t *);
  36 void arctangent (mpf_t *, mpf_t *);
  37 void arctangent2 (mpf_t *, mpf_t *, mpf_t *);
  38 void hypercos (mpf_t *, mpf_t *);
  39 void hypersine (mpf_t *, mpf_t *);
  40
  41 /* Return a constant result of a given type and kind, with locus.  */
  42 gfc_expr *gfc_constant_result (bt, int, locus *);
  43
  44 /* Make sure a gfc_expr expression is within its allowed range.  Checks
  45    for overflow and underflow.  */
  46 arith gfc_range_check (gfc_expr *);
  47
  48 int gfc_compare_expr (gfc_expr *, gfc_expr *);
  49 int gfc_compare_string (gfc_expr *, gfc_expr *, const int *);
  50
  51 /* Constant folding for gfc_expr trees.  */
  52 gfc_expr *gfc_uplus (gfc_expr * op);
  53 gfc_expr *gfc_uminus (gfc_expr * op);
  54 gfc_expr *gfc_add (gfc_expr *, gfc_expr *);
  55 gfc_expr *gfc_subtract (gfc_expr *, gfc_expr *);
  56 gfc_expr *gfc_multiply (gfc_expr *, gfc_expr *);
  57 gfc_expr *gfc_divide (gfc_expr *, gfc_expr *);
  58 gfc_expr *gfc_power (gfc_expr *, gfc_expr *);
  59 gfc_expr *gfc_concat (gfc_expr *, gfc_expr *);
  60 gfc_expr *gfc_and (gfc_expr *, gfc_expr *);
  61 gfc_expr *gfc_or (gfc_expr *, gfc_expr *);
  62 gfc_expr *gfc_not (gfc_expr *);
  63 gfc_expr *gfc_eqv (gfc_expr *, gfc_expr *);
  64 gfc_expr *gfc_neqv (gfc_expr *, gfc_expr *);
  65 gfc_expr *gfc_eq (gfc_expr *, gfc_expr *);
  66 gfc_expr *gfc_ne (gfc_expr *, gfc_expr *);
  67 gfc_expr *gfc_gt (gfc_expr *, gfc_expr *);
  68 gfc_expr *gfc_ge (gfc_expr *, gfc_expr *);
  69 gfc_expr *gfc_lt (gfc_expr *, gfc_expr *);
  70 gfc_expr *gfc_le (gfc_expr *, gfc_expr *);
  71
  72 /* Convert strings to literal constants.  */
  73 gfc_expr *gfc_convert_integer (const char *, int, int, locus *);
  74 gfc_expr *gfc_convert_real (const char *, int, locus *);
  75 gfc_expr *gfc_convert_complex (gfc_expr *, gfc_expr *, int);
  76
  77 /* Convert a constant of one kind to another kind.  */
  78 gfc_expr *gfc_int2int (gfc_expr *, int);
  79 gfc_expr *gfc_int2real (gfc_expr *, int);
  80 gfc_expr *gfc_int2complex (gfc_expr *, int);
  81 gfc_expr *gfc_real2int (gfc_expr *, int);
  82 gfc_expr *gfc_real2real (gfc_expr *, int);
  83 gfc_expr *gfc_real2complex (gfc_expr *, int);
  84 gfc_expr *gfc_complex2int (gfc_expr *, int);
  85 gfc_expr *gfc_complex2real (gfc_expr *, int);
  86 gfc_expr *gfc_complex2complex (gfc_expr *, int);
  87 gfc_expr *gfc_log2log (gfc_expr *, int);
  88
  89 #endif /* GFC_ARITH_H  */
  90