/* Header for code constant translation functions
   Copyright (C) 2002, 2003, 2004, 2005, 2006, 2007
   Free Software Foundation, Inc.
   Contributed by Paul Brook

This file is part of GCC.

GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.

GCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
for more details.

You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3.  If not see
<http://www.gnu.org/licenses/>.  */

/* Converts between INT_CST and GMP integer representations.  */
tree gfc_conv_mpz_to_tree (mpz_t, int);
void gfc_conv_tree_to_mpz (mpz_t, tree);

/* Converts between REAL_CST and MPFR floating-point representations.  */
tree gfc_conv_mpfr_to_tree (mpfr_t, int);
void gfc_conv_tree_to_mpfr (mpfr_ptr, tree);

/* Build a tree for a constant.  Must be an EXPR_CONSTANT gfc_expr.
   For CHARACTER literal constants, the caller still has to set the
   string length as a separate operation.  */
tree gfc_conv_constant_to_tree (gfc_expr *);

/* Like gfc_conv_noncharacter_constant, but works on simplified expression
   structures.  Also sets the length of CHARACTER strings in the gfc_se.  */
void gfc_conv_constant (gfc_se *, gfc_expr *);

tree gfc_build_string_const (int, const char *);
tree gfc_build_cstring_const (const char *);

/* Translate a string constant for a static initializer.  */
tree gfc_conv_string_init (tree, gfc_expr *);

/* Create a tree node for the string length if it is constant.  */
void gfc_conv_const_charlen (gfc_charlen *);

/* Initialize the nodes for constants.  */
void gfc_init_constants (void);

/* Build a constant with given type from an int_cst.  */
tree gfc_build_const (tree, tree);

/* Integer constants 0..GFC_MAX_DIMENSIONS.  */
extern GTY(()) tree gfc_rank_cst[GFC_MAX_DIMENSIONS + 1];

#define gfc_index_zero_node gfc_rank_cst[0]
#define gfc_index_one_node gfc_rank_cst[1]