/*
 *	aegis - project change supervisor
 *	Copyright (C) 1994, 1995, 1999, 2002, 2003 Peter Miller;
 *	All rights reserved.
 *
 *	This program 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 2 of the License, or
 *	(at your option) any later version.
 *
 *	This program 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 this program; if not, write to the Free Software
 *	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 * MANIFEST: functions to manipulate mains
 */

#include <ac/stdio.h>
#include <ac/stddef.h>
#include <ac/stdlib.h>
#include <ac/limits.h>

#include <arglex.h>
#include <error.h>


typedef struct table_ty table_ty;
struct table_ty
{
    const char      *name;
    int             num_bits;
    int             is_signed;
};


static table_ty table[] =
{
    { "unsigned long",	sizeof(unsigned long) * CHAR_BIT,	0, },
    { "long\t",		sizeof(long) * CHAR_BIT,		1, },
    { "unsigned int",	sizeof(unsigned int) * CHAR_BIT,	0, },
    { "int\t",		sizeof(int) * CHAR_BIT,			1, },
    { "unsigned short",	sizeof(unsigned short) * CHAR_BIT,	0, },
    { "short\t",	sizeof(short) * CHAR_BIT,		1, },
};


static void
find(int num_bits, int is_signed)
{
    table_ty        *tp;

    for (tp = table; tp < ENDOF(table); ++tp)
    {
	if (tp->num_bits == num_bits && tp->is_signed == is_signed)
	{
	    printf
	    (
		"typedef\t%s\t%sint%d;\n",
		tp->name,
		(is_signed ? "" : "u"),
		num_bits
	    );
	    return;
	}
    }
    error_raw
    (
	"unable to find a%ssigned %d bit integer type",
	(is_signed ? "" : "n un"),
	num_bits
    );
}


int
main(int argc, char **argv)
{
    arglex_init(argc, argv, (arglex_table_ty *)0);
    printf("#ifndef COMMON_FIND_SIZES_H\n");
    printf("#define COMMON_FIND_SIZES_H\n");
    printf("\n");
    find(32, 1);
    find(32, 0);
    find(16, 1);
    find(16, 0);
    printf("\n");
    printf("#endif /* COMMON_FIND_SIZES_H */\n");
    exit(0);
}
