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guile/libguile/boolean.c
Greg J. Badros b6791b2e94 * error.h, error.c: Added `scm_wrong_type_arg_msg' to support
displaying the expected type.  Use SCM_LISTn in a couple places
instead of scm_cons-ing by hand.

* __scm.h: Added SCM_ASSERT_TYPE macro.

* validate.h, scm_validate.h: Added the former, as a renamed
version of the latter with SCM_ASSERT_TYPE used in
SCM_MAKE_VALIDATE (instead of just SCM_ASSERT)

* Makefile.am: Rename scm_validate.h to validate.h.

* *.c, *.h: Include validate.h, not scm_validate.h (old name's
prefix was superfluous).
2000-03-03 00:09:54 +00:00

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/* Copyright (C) 1995,1996 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. */
/* Software engineering face-lift by Greg J. Badros, 11-Dec-1999,
gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */
#include <stdio.h>
#include "_scm.h"
#include "validate.h"
#include "boolean.h"
SCM_DEFINE (scm_not, "not", 1, 0, 0,
(SCM x),
"Return #t iff X is #f, else return #f.\n")
#define FUNC_NAME s_scm_not
{
return SCM_BOOL(SCM_FALSEP(x));
}
#undef FUNC_NAME
SCM_DEFINE (scm_boolean_p, "boolean?", 1, 0, 0,
(SCM obj),
"Return #t iff OBJ is either #t or #f.\n")
#define FUNC_NAME s_scm_boolean_p
{
return SCM_BOOL(SCM_BOOL_F == obj || SCM_BOOL_T == obj);
}
#undef FUNC_NAME
void
scm_init_boolean ()
{
#include "boolean.x"
}