* Chill runtime moved into toplevel libchill.

        * Makefile.in Revamped due to move.  Add multilib support.
        * configure.in: Similarly.  Use autoconf.
        * powerset.h: Do not depend on BITS_PER_UNIT.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@22238 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 65 insertions, 0 deletions

diff --git a/libchill/inps.c b/libchill/inps.c
new file mode 100644
index 00000000000..d01d76aff24
--- /dev/null
+++ b/libchill/inps.c
@@ -0,0 +1,65 @@
+/* Implement POWERSET runtime actions for CHILL.
+   Copyright (C) 1992,1993 Free Software Foundation, Inc.
+   Author: Wilfried Moser, et al
+
+This file is part of GNU CC.
+
+GNU CC 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.
+
+GNU CC 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 GNU CC; see the file COPYING.  If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#define __CHILL_LIB__
+
+#include "config.h"
+#include <stdio.h>
+#include "powerset.h"
+
+/*
+ * function __inpowerset
+ *
+ * parameters:
+ *	bitno		bit number within set
+ *	powerset	the powerset
+ *	bitlength	length of powerset in bits
+ *      minval          number of lowest bit stored
+ *
+ * returns:
+ *	int		1 .. found
+ *			0 .. not found
+ *
+ * exceptions:
+ *  rangefail
+ *
+ * abstract:
+ *  checks if a given value is included in a powerset
+ *
+ */
+int
+__inpowerset (bitno, powerset, bitlength, minval)
+     unsigned long  bitno;
+     SET_WORD      *powerset;
+     unsigned long  bitlength;
+     long           minval;
+{
+  if (bitno < minval || (bitno - minval) >= bitlength)
+    return 0;
+    
+  bitno -= minval;
+  if (bitlength <= SET_CHAR_SIZE)
+    return GET_BIT_IN_CHAR (*((SET_CHAR *)powerset), bitno);
+  else if (bitlength <= SET_SHORT_SIZE)
+    return GET_BIT_IN_SHORT (*((SET_SHORT *)powerset), bitno);
+  else
+    return GET_BIT_IN_WORD (powerset[bitno / SET_WORD_SIZE],
+			    bitno % SET_WORD_SIZE);
+}