* stime.c (scm_init_stime): don't define ticks/sec.

[bpt/guile.git] / libguile / sequences.c

/*	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, 675 Mass Ave, Cambridge, MA 02139, 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.  
 */
\f

#include <stdio.h>
#include "_scm.h"

#include "sequences.h"
\f




int
scm_obj_length (obj)
     SCM obj;
{
  int i;
  i = scm_ilength(obj);
  if (i >= 0)
    return i;
  else if (SCM_NIMP (obj))
    {
      if (SCM_ROSTRINGP (obj))
	return SCM_ROLENGTH (obj);
      else if (SCM_VECTORP (obj))
	return SCM_LENGTH (obj);
      else
	return -1;
    }
  else
    return -1;
}


SCM_PROC(s_length, "length", 1, 0, 0, scm_length);

SCM
scm_length(x)
     SCM x;
{
  int i;
  i = scm_obj_length(x);
  if (i >= 0)
    return SCM_MAKINUM (i);
  else
    {
      SCM_ASSERT(0, x, SCM_ARG1, s_length);
      return SCM_BOOL_F;
    }
}


\f


SCM_PROC (s_reverse, "reverse", 1, 0, 0, scm_reverse);

SCM
scm_reverse (objs)
     SCM objs;
{
  return scm_list_reverse (objs);
}

\f



void
scm_init_sequences ()
{
#include "sequences.x"
}