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 /* MPFR does not have mpfr_atan2(), which needs to return the principle
  28    value of atan2().  MPFR also does not have the conversion of a mpfr_t
  29    to a mpz_t, so declare a function for this as well.  */
  30
  31 void arctangent2 (mpfr_t, mpfr_t, mpfr_t);
  32 void gfc_mpfr_to_mpz(mpz_t, mpfr_t);
  33 void gfc_set_model_kind (int);
  34 void gfc_set_model (mpfr_t);
  35
  36 /* Return a constant result of a given type and kind, with locus.  */
  37 gfc_expr *gfc_constant_result (bt, int, locus *);
  38
  39 /* Make sure a gfc_expr expression is within its allowed range.  Checks
  40    for overflow and underflow.  */
  41 arith gfc_range_check (gfc_expr *);
  42
  43 int gfc_compare_expr (gfc_expr *, gfc_expr *);
  44 int gfc_compare_string (gfc_expr *, gfc_expr *, const int *);
  45
  46 /* Constant folding for gfc_expr trees.  */
  47 gfc_expr *gfc_uplus (gfc_expr * op);
  48 gfc_expr *gfc_uminus (gfc_expr * op);
  49 gfc_expr *gfc_add (gfc_expr *, gfc_expr *);
  50 gfc_expr *gfc_subtract (gfc_expr *, gfc_expr *);
  51 gfc_expr *gfc_multiply (gfc_expr *, gfc_expr *);
  52 gfc_expr *gfc_divide (gfc_expr *, gfc_expr *);
  53 gfc_expr *gfc_power (gfc_expr *, gfc_expr *);
  54 gfc_expr *gfc_concat (gfc_expr *, gfc_expr *);
  55 gfc_expr *gfc_and (gfc_expr *, gfc_expr *);
  56 gfc_expr *gfc_or (gfc_expr *, gfc_expr *);
  57 gfc_expr *gfc_not (gfc_expr *);
  58 gfc_expr *gfc_eqv (gfc_expr *, gfc_expr *);
  59 gfc_expr *gfc_neqv (gfc_expr *, gfc_expr *);
  60 gfc_expr *gfc_eq (gfc_expr *, gfc_expr *);
  61 gfc_expr *gfc_ne (gfc_expr *, gfc_expr *);
  62 gfc_expr *gfc_gt (gfc_expr *, gfc_expr *);
  63 gfc_expr *gfc_ge (gfc_expr *, gfc_expr *);
  64 gfc_expr *gfc_lt (gfc_expr *, gfc_expr *);
  65 gfc_expr *gfc_le (gfc_expr *, gfc_expr *);
  66
  67 /* Convert strings to literal constants.  */
  68 gfc_expr *gfc_convert_integer (const char *, int, int, locus *);
  69 gfc_expr *gfc_convert_real (const char *, int, locus *);
  70 gfc_expr *gfc_convert_complex (gfc_expr *, gfc_expr *, int);
  71
  72 /* Convert a constant of one kind to another kind.  */
  73 gfc_expr *gfc_int2int (gfc_expr *, int);
  74 gfc_expr *gfc_int2real (gfc_expr *, int);
  75 gfc_expr *gfc_int2complex (gfc_expr *, int);
  76 gfc_expr *gfc_real2int (gfc_expr *, int);
  77 gfc_expr *gfc_real2real (gfc_expr *, int);
  78 gfc_expr *gfc_real2complex (gfc_expr *, int);
  79 gfc_expr *gfc_complex2int (gfc_expr *, int);
  80 gfc_expr *gfc_complex2real (gfc_expr *, int);
  81 gfc_expr *gfc_complex2complex (gfc_expr *, int);
  82 gfc_expr *gfc_log2log (gfc_expr *, int);
  83
  84 #endif /* GFC_ARITH_H  */
  85