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a-gettty.c
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C/C++ Source or Header
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1996-09-28
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4KB
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155 lines
/****************************************************************************/
/* */
/* GNAT COMPILER COMPONENTS */
/* */
/* A - G E T T T Y */
/* */
/* Body */
/* */
/* $Revision: 1.4 $ */
/* */
/* Copyright (c) 1992,1993,1994,1995 NYU, All Rights Reserved */
/* */
/* GNAT is free software; you can redistribute it and/or modify it under */
/* terms of the GNU General Public License as published by the Free */
/* Software Foundation; either version 2, or (at your option) any later */
/* version. GNAT is distributed in the hope that it will be useful, but */
/* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANT- */
/* ABILITY 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 GNAT; see file COPYING. If not, write */
/* to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
/* */
/****************************************************************************/
/* Functions for retrieving target types. See Ada package Get_Targ */
#include "config.h"
#include "a-ada.h"
#include "a-types.h"
#define MIN(X,Y) ((X) < (Y) ? (X) : (Y))
/* Standard data type sizes. Most of these are not used. */
#ifndef CHAR_TYPE_SIZE
#define CHAR_TYPE_SIZE BITS_PER_UNIT
#endif
#ifndef SHORT_TYPE_SIZE
#define SHORT_TYPE_SIZE (BITS_PER_UNIT * MIN ((UNITS_PER_WORD + 1) / 2, 2))
#endif
#ifndef INT_TYPE_SIZE
#define INT_TYPE_SIZE BITS_PER_WORD
#endif
#ifndef LONG_TYPE_SIZE
#define LONG_TYPE_SIZE BITS_PER_WORD
#endif
#ifndef LONG_LONG_TYPE_SIZE
#define LONG_LONG_TYPE_SIZE (BITS_PER_WORD * 2)
#endif
#ifndef FLOAT_TYPE_SIZE
#define FLOAT_TYPE_SIZE BITS_PER_WORD
#endif
#ifndef DOUBLE_TYPE_SIZE
#define DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2)
#endif
#ifndef LONG_DOUBLE_TYPE_SIZE
#define LONG_DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2)
#endif
/* The choice of SIZE_TYPE here is very problematic. We need a signed
type whose bit width is Pmode. Assume "long" is such a type here. */
#undef SIZE_TYPE
#define SIZE_TYPE "long int"
/* The following provide a functional interface for the front end Ada code
to determine the sizes that are used for various C types. */
Pos
get_target_bits_per_unit ()
{
return BITS_PER_UNIT;
}
Pos
get_target_bits_per_word ()
{
return BITS_PER_WORD;
}
Pos
get_target_char_size ()
{
return CHAR_TYPE_SIZE;
}
Pos
get_target_short_size ()
{
return SHORT_TYPE_SIZE;
}
Pos
get_target_int_size ()
{
return INT_TYPE_SIZE;
}
Pos
get_target_long_size ()
{
return LONG_TYPE_SIZE;
}
Pos
get_target_long_long_size ()
{
return LONG_LONG_TYPE_SIZE;
}
Pos
get_target_float_size ()
{
return FLOAT_TYPE_SIZE;
}
Pos
get_target_double_size ()
{
return DOUBLE_TYPE_SIZE;
}
Pos
get_target_long_double_size ()
{
return LONG_DOUBLE_TYPE_SIZE;
}
Pos
get_target_pointer_size ()
{
return POINTER_SIZE;
}
Pos
get_target_maximum_alignment ()
{
return BIGGEST_ALIGNMENT / BITS_PER_UNIT;
}
#ifndef FLOAT_WORDS_BIG_ENDIAN
#define FLOAT_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
#endif
Nat get_float_words_be () {return FLOAT_WORDS_BIG_ENDIAN;}
Nat get_words_be () {return WORDS_BIG_ENDIAN;}
Nat get_bytes_be () {return BYTES_BIG_ENDIAN;}
Nat get_bits_be () {return BITS_BIG_ENDIAN;}