/* Copyright (C) 2006-2021 Free Software Foundation, Inc.

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/>.  */

/* This file contains the definition of the types provided by the
   Fortran 2003 ISO_C_BINDING intrinsic module.  */

#ifndef NAMED_INTCST
# define NAMED_INTCST(a,b,c,d) 
#endif

#ifndef NAMED_REALCST
# define NAMED_REALCST(a,b,c,d) 
#endif

#ifndef NAMED_CMPXCST
# define NAMED_CMPXCST(a,b,c,d) 
#endif

#ifndef NAMED_LOGCST
# define NAMED_LOGCST(a,b,c) 
#endif

#ifndef NAMED_CHARKNDCST
# define NAMED_CHARKNDCST(a,b,c) 
#endif

#ifndef NAMED_FUNCTION
# define NAMED_FUNCTION(a,b,c,d)
#endif

#ifndef NAMED_SUBROUTINE
# define NAMED_SUBROUTINE(a,b,c,d)
#endif

/* The arguments to NAMED_*CST are:
     -- an internal name
     -- the symbol name in the module, as seen by Fortran code
     -- the value it has, for use in trans-types.c  
     -- the standard that supports this type  */

NAMED_INTCST (ISOCBINDING_INT, "c_int", gfc_c_int_kind, GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_SHORT, "c_short", \
              get_int_kind_from_node (short_integer_type_node), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_LONG, "c_long", \
              get_int_kind_from_node (long_integer_type_node), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_LONG_LONG, "c_long_long", \
              get_int_kind_from_node (long_long_integer_type_node), GFC_STD_F2003)

NAMED_INTCST (ISOCBINDING_INTMAX_T, "c_intmax_t", \
              get_int_kind_from_name (INTMAX_TYPE), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_INTPTR_T, "c_intptr_t", \
              get_int_kind_from_name (INTPTR_TYPE), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_PTRDIFF_T, "c_ptrdiff_t", \
              get_int_kind_from_name (PTRDIFF_TYPE), GFC_STD_F2018)
NAMED_INTCST (ISOCBINDING_SIZE_T, "c_size_t", \
              gfc_index_integer_kind, GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_SIGNED_CHAR, "c_signed_char", \
              get_int_kind_from_node (signed_char_type_node), GFC_STD_F2003)

NAMED_INTCST (ISOCBINDING_INT8_T, "c_int8_t", \
              get_int_kind_from_name (INT8_TYPE), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_INT16_T, "c_int16_t", \
              get_int_kind_from_name (INT16_TYPE), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_INT32_T, "c_int32_t", \
              get_int_kind_from_name (INT32_TYPE), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_INT64_T, "c_int64_t", \
              get_int_kind_from_name (INT64_TYPE), GFC_STD_F2003)
/* GNU Extension.  */
NAMED_INTCST (ISOCBINDING_INT128_T, "c_int128_t", \
              get_int_kind_from_width (128), GFC_STD_GNU)

NAMED_INTCST (ISOCBINDING_INT_LEAST8_T, "c_int_least8_t", \
              get_int_kind_from_name (INT_LEAST8_TYPE), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_INT_LEAST16_T, "c_int_least16_t", \
              get_int_kind_from_name (INT_LEAST16_TYPE), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_INT_LEAST32_T, "c_int_least32_t", \
              get_int_kind_from_name (INT_LEAST32_TYPE), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_INT_LEAST64_T, "c_int_least64_t", \
              get_int_kind_from_name (INT_LEAST64_TYPE), GFC_STD_F2003)
/* GNU Extension.  */
NAMED_INTCST (ISOCBINDING_INT_LEAST128_T, "c_int_least128_t", \
              get_int_kind_from_minimal_width (128), GFC_STD_GNU)

NAMED_INTCST (ISOCBINDING_INT_FAST8_T, "c_int_fast8_t", \
              get_int_kind_from_name (INT_FAST8_TYPE), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_INT_FAST16_T, "c_int_fast16_t", \
              get_int_kind_from_name (INT_FAST16_TYPE), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_INT_FAST32_T, "c_int_fast32_t", \
              get_int_kind_from_name (INT_FAST32_TYPE), GFC_STD_F2003)
NAMED_INTCST (ISOCBINDING_INT_FAST64_T, "c_int_fast64_t", \
              get_int_kind_from_name (INT_FAST64_TYPE), GFC_STD_F2003)
/* GNU Extension.  */
NAMED_INTCST (ISOCBINDING_INT_FAST128_T, "c_int_fast128_t",
	      get_int_kind_from_width (128), GFC_STD_GNU)

NAMED_REALCST (ISOCBINDING_FLOAT, "c_float", \
               get_real_kind_from_node (float_type_node), GFC_STD_F2003)
NAMED_REALCST (ISOCBINDING_DOUBLE, "c_double", \
               get_real_kind_from_node (double_type_node), GFC_STD_F2003)
NAMED_REALCST (ISOCBINDING_LONG_DOUBLE, "c_long_double", \
               get_real_kind_from_node (long_double_type_node), GFC_STD_F2003)

/* GNU Extension.  Note that the equivalence here is specifically to
   the IEEE 128-bit type _Float128; if that does not map onto a type
   otherwise supported by the Fortran front end, get_real_kind_from_node
   will reject it as unsupported.  */
NAMED_REALCST (ISOCBINDING_FLOAT128, "c_float128", \
		(float128_type_node == NULL_TREE \
		 ? -4 : get_real_kind_from_node (float128_type_node)), \
	       GFC_STD_GNU)
NAMED_CMPXCST (ISOCBINDING_FLOAT_COMPLEX, "c_float_complex", \
               get_real_kind_from_node (float_type_node), GFC_STD_F2003)
NAMED_CMPXCST (ISOCBINDING_DOUBLE_COMPLEX, "c_double_complex", \
               get_real_kind_from_node (double_type_node), GFC_STD_F2003)
NAMED_CMPXCST (ISOCBINDING_LONG_DOUBLE_COMPLEX, "c_long_double_complex", \
               get_real_kind_from_node (long_double_type_node), GFC_STD_F2003)

/* GNU Extension.  Similar issues to c_float128 above.  */
NAMED_CMPXCST (ISOCBINDING_FLOAT128_COMPLEX, "c_float128_complex", \
		(float128_type_node == NULL_TREE \
		 ? -4 : get_real_kind_from_node (float128_type_node)), \
	       GFC_STD_GNU)

NAMED_LOGCST (ISOCBINDING_BOOL, "c_bool", \
              get_int_kind_from_width (BOOL_TYPE_SIZE))

NAMED_CHARKNDCST (ISOCBINDING_CHAR, "c_char", gfc_default_character_kind)

#ifndef NAMED_CHARCST
# define NAMED_CHARCST(a,b,c) 
#endif

/* Use langhooks to deal with host to target translations.  */ 
NAMED_CHARCST (ISOCBINDING_NULL_CHAR, "c_null_char", \
	       lang_hooks.to_target_charset ('\0'))
NAMED_CHARCST (ISOCBINDING_ALERT, "c_alert", \
	       lang_hooks.to_target_charset ('\a'))
NAMED_CHARCST (ISOCBINDING_BACKSPACE, "c_backspace", \
	       lang_hooks.to_target_charset ('\b'))
NAMED_CHARCST (ISOCBINDING_FORM_FEED, "c_form_feed", \
	       lang_hooks.to_target_charset ('\f'))
NAMED_CHARCST (ISOCBINDING_NEW_LINE, "c_new_line", \
	       lang_hooks.to_target_charset ('\n'))
NAMED_CHARCST (ISOCBINDING_CARRIAGE_RETURN, "c_carriage_return", \
	       lang_hooks.to_target_charset ('\r'))
NAMED_CHARCST (ISOCBINDING_HORIZONTAL_TAB, "c_horizontal_tab", \
	       lang_hooks.to_target_charset ('\t'))
NAMED_CHARCST (ISOCBINDING_VERTICAL_TAB, "c_vertical_tab", \
	       lang_hooks.to_target_charset ('\v'))

#ifndef DERIVED_TYPE
# define DERIVED_TYPE(a,b,c) 
#endif

DERIVED_TYPE (ISOCBINDING_PTR, "c_ptr", \
              get_int_kind_from_node (ptr_type_node))
DERIVED_TYPE (ISOCBINDING_NULL_PTR, "c_null_ptr", \
              get_int_kind_from_node (ptr_type_node))
DERIVED_TYPE (ISOCBINDING_FUNPTR, "c_funptr", \
              get_int_kind_from_node (ptr_type_node))
DERIVED_TYPE (ISOCBINDING_NULL_FUNPTR, "c_null_funptr", \
              get_int_kind_from_node (ptr_type_node))

/* The arguments to NAMED_FUNCTIONS and NAMED_SUBROUTINES are:
     -- the ISYM
     -- the symbol name in the module, as seen by Fortran code
     -- the Fortran standard  */

NAMED_SUBROUTINE (ISOCBINDING_F_POINTER, "c_f_pointer",
                  GFC_ISYM_C_F_POINTER, GFC_STD_F2003)
NAMED_SUBROUTINE (ISOCBINDING_F_PROCPOINTER, "c_f_procpointer",
                  GFC_ISYM_C_F_PROCPOINTER, GFC_STD_F2003)

NAMED_FUNCTION (ISOCBINDING_ASSOCIATED, "c_associated",
		GFC_ISYM_C_ASSOCIATED, GFC_STD_F2003)
NAMED_FUNCTION (ISOCBINDING_FUNLOC, "c_funloc",
                GFC_ISYM_C_FUNLOC, GFC_STD_F2003)
NAMED_FUNCTION (ISOCBINDING_LOC, "c_loc",
                GFC_ISYM_C_LOC, GFC_STD_F2003)

NAMED_FUNCTION (ISOCBINDING_C_SIZEOF, "c_sizeof", \
                GFC_ISYM_C_SIZEOF, GFC_STD_F2008)

#undef NAMED_INTCST
#undef NAMED_REALCST
#undef NAMED_CMPXCST
#undef NAMED_LOGCST
#undef NAMED_CHARCST
#undef NAMED_CHARKNDCST
#undef DERIVED_TYPE
#undef NAMED_FUNCTION
#undef NAMED_SUBROUTINE