1 /* Implement powerset-related runtime actions for CHILL.
2 Copyright (C) 1992, 93, 1994 Free Software Foundation, Inc.
5 This file is part of GNU CC.
7 GNU CC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GNU CC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GNU CC; see the file COPYING. If not, write to
19 the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
21 /* As a special exception, if you link this library with other files,
22 some of which are compiled with GCC, to produce an executable,
23 this library does not by itself cause the resulting executable
24 to be covered by the GNU General Public License.
25 This exception does not however invalidate any other reasons why
26 the executable file might be covered by the GNU General Public License. */
32 extern void cause_exception (char *exname
, char *file
, int lineno
);
38 * OUT - pointer to output PS
39 * LEFT - pointer to left PS
40 * LEFTLEN - length of left PS in bits
41 * RIGHT - pointer to right PS
42 * RIGHTLEN - length of right PS in bits
51 * concatenates two powersets into the output powerset.
56 __pscpy (SET_WORD
*dps
,
58 unsigned long doffset
,
62 unsigned long length
);
65 __concatps (out
, left
, leftlen
, right
, rightlen
)
68 unsigned long leftlen
;
70 unsigned long rightlen
;
72 /* allocated sizes for each set involved */
73 unsigned long outall
, leftall
, rightall
;
77 /* FIXME: cause an exception */
79 else if (leftlen
== 0 || !left
)
81 if (rightlen
== 0 || !right
)
82 return; /* no work to do */
83 __pscpy (out
, rightlen
, (unsigned long)0,
84 right
, rightlen
, (unsigned long)0, rightlen
);
86 else if (rightlen
== 0 || !right
)
88 if (leftlen
== 0 || !left
)
89 return; /* no work to do */
90 __pscpy (out
, leftlen
, (unsigned long)0,
91 left
, leftlen
, (unsigned long)0, leftlen
);
93 /* copy the left powerset into bits 0..leftlen - 1 */
94 __pscpy (out
, leftlen
+ rightlen
, (unsigned long)0,
95 left
, leftlen
, (unsigned long)0, leftlen
);
97 /* copy the right powerset into bits leftlen..leftlen+rightlen-1 */
98 __pscpy (out
, leftlen
+ rightlen
, leftlen
,
99 right
, rightlen
, (unsigned long)0, rightlen
);