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[bpt/guile.git] / src / envs.h

/* Copyright (C) 2001 Free Software Foundation, Inc.
 *
 * 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, 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 software; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307 USA
 *
 * As a special exception, the Free Software Foundation gives permission
 * for additional uses of the text contained in its release of GUILE.
 *
 * The exception is that, if you link the GUILE library with other files
 * to produce an executable, this does not by itself cause the
 * resulting executable to be covered by the GNU General Public License.
 * Your use of that executable is in no way restricted on account of
 * linking the GUILE library code into it.
 *
 * This exception does not however invalidate any other reasons why
 * the executable file might be covered by the GNU General Public License.
 *
 * This exception applies only to the code released by the
 * Free Software Foundation under the name GUILE.  If you copy
 * code from other Free Software Foundation releases into a copy of
 * GUILE, as the General Public License permits, the exception does
 * not apply to the code that you add in this way.  To avoid misleading
 * anyone as to the status of such modified files, you must delete
 * this exception notice from them.
 *
 * If you write modifications of your own for GUILE, it is your choice
 * whether to permit this exception to apply to your modifications.
 * If you do not wish that, delete this exception notice.  */

#ifndef _SCM_ENVS_H_
#define _SCM_ENVS_H_

#include <libguile.h>
#include "config.h"

extern scm_bits_t scm_tc16_env;

struct scm_env {
  SCM identifier;
  SCM obarray;
};

#define SCM_ENV_P(x)		SCM_SMOB_PREDICATE (scm_tc16_env, x)
#define SCM_ENV_DATA(x)		((struct scm_env *) SCM_SMOB_DATA (x))
#define SCM_VALIDATE_ENV(p,x)	SCM_MAKE_VALIDATE (p, x, ENV_P)

#define SCM_ENV_IDENTIFIER(x)	(SCM_ENV_DATA(x)->identifier)
#define SCM_ENV_OBARRAY(x)	(SCM_ENV_DATA(x)->obarray)

extern SCM scm_c_lookup_env (SCM identifier);
extern SCM scm_c_env_vcell (SCM env, SCM name, int intern);

extern void scm_init_envs (void);

#endif /* _SCM_ENVS_H_ */

/*
  Local Variables:
  c-file-style: "gnu"
  End:
*/