guile/libguile/gh_predicates.c

/*      Copyright (C) 1995,1996,1997, 2000 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)
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 * 
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
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 * along with this software; see the file COPYING.  If not, write to
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 * 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.
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 * 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
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/* type predicates and equality predicates */

#include <stdio.h>

#include "libguile/gh.h"

/* type predicates: tell you if an SCM object has a given type */
int 
gh_boolean_p (SCM val)
{
  return (SCM_NFALSEP (scm_boolean_p (val)));
}
int 
gh_symbol_p (SCM val)
{
  return (SCM_NFALSEP (scm_symbol_p (val)));
}
int 
gh_char_p (SCM val)
{
  return (SCM_NFALSEP (scm_char_p (val)));
}
int 
gh_vector_p (SCM val)
{
  return (SCM_NFALSEP (scm_vector_p (val)));
}
int 
gh_pair_p (SCM val)
{
  return (SCM_NFALSEP (scm_pair_p (val)));
}
int 
gh_number_p (SCM val)
{
  return (SCM_NFALSEP (scm_number_p (val)));
}
int 
gh_string_p (SCM val)
{
  return (SCM_NFALSEP (scm_string_p (val)));
}
int 
gh_procedure_p (SCM val)
{
  return (SCM_NFALSEP (scm_procedure_p (val)));
}
int 
gh_list_p (SCM val)
{
  return (SCM_NFALSEP (scm_list_p (val)));
}
int 
gh_inexact_p (SCM val)
{
  return (SCM_NFALSEP (scm_inexact_p (val)));
}
int 
gh_exact_p (SCM val)
{
  return (SCM_NFALSEP (scm_exact_p (val)));
}

/* the three types of equality */
int 
gh_eq_p (SCM x, SCM y)
{
  return (SCM_NFALSEP (scm_eq_p (x, y)));
}
int 
gh_eqv_p (SCM x, SCM y)
{
  return (SCM_NFALSEP (scm_eqv_p (x, y)));
}
int 
gh_equal_p (SCM x, SCM y)
{
  return (SCM_NFALSEP (scm_equal_p (x, y)));
}

/* equivalent to (string=? ...), but returns 0 or 1 rather than Scheme
   booleans */
int
gh_string_equal_p(SCM s1, SCM s2)
{
  return (SCM_NFALSEP (scm_string_equal_p(s1, s2)));
}

/* equivalent to (null? ...), but returns 0 or 1 rather than Scheme
   booleans */
int
gh_null_p(SCM l)
{
  return (SCM_NFALSEP(scm_null_p(l)));
}

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