1 files changed, 128 insertions, 0 deletions
diff --git a/libguile/sequences.c b/libguile/sequences.c
new file mode 100644
index 000000000..6973f74dc
--- /dev/null
+++ b/libguile/sequences.c
@@ -0,0 +1,128 @@
+/*	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.  
+ */
+
+
+#include <stdio.h>
+#include "_scm.h"
+
+
+
+
+
+#ifdef __STDC__
+int
+scm_obj_length (SCM obj)
+#else
+int
+scm_obj_length (obj)
+     SCM obj;
+#endif
+{
+  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);
+#ifdef __STDC__
+SCM
+scm_length(SCM x)
+#else
+SCM
+scm_length(x)
+     SCM x;
+#endif
+{
+  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;
+    }
+}
+
+
+
+
+
+SCM_PROC (s_reverse, "reverse", 1, 0, 0, scm_reverse);
+#ifdef __STDC__
+SCM
+scm_reverse (SCM objs)
+#else
+SCM
+scm_reverse (objs)
+     SCM objs;
+#endif
+{
+  return scm_list_reverse (objs);
+}
+
+
+
+
+#ifdef __STDC__
+void
+scm_init_sequences (void)
+#else
+void
+scm_init_sequences ()
+#endif
+{
+#include "sequences.x"
+}
+