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Diffstat (limited to 'libchill/notps.c')
-rw-r--r-- | libchill/notps.c | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/libchill/notps.c b/libchill/notps.c new file mode 100644 index 00000000000..dd683edea4e --- /dev/null +++ b/libchill/notps.c @@ -0,0 +1,81 @@ +/* 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 __notpowerset + * + * parameters: + * out output powerset + * left input powerset + * bitlength length of powerset in bits + * + * returns: + * void + * + * exceptions: + * none + * + * abstract: + * + */ + +void +__notpowerset (out, left, bitlength) + SET_WORD *out; + SET_WORD *left; + unsigned long bitlength; +{ + if (bitlength <= SET_CHAR_SIZE) + { + *((SET_CHAR *)out) = ~ (*((SET_CHAR *)left)); +#if 0 + SET_CHAR tmp; + tmp = *((SET_CHAR *)left); + tmp = ~ tmp; + *((SET_CHAR *)out) = tmp; + + MASK_UNUSED_CHAR_BITS((SET_CHAR *)out, bitlength); + *((SET_CHAR *)out) = ~ *((SET_CHAR *)left); + MASK_UNUSED_CHAR_BITS((SET_CHAR *)out, bitlength); + *((SET_CHAR *)out) = (~(0)) ^ (*((SET_CHAR *)left)); + MASK_UNUSED_CHAR_BITS((SET_CHAR *)out, bitlength); +#endif + } + else if (bitlength <= SET_SHORT_SIZE) + { + *((SET_SHORT *)out) = ~ (*((SET_SHORT *)left)); + MASK_UNUSED_SHORT_BITS((SET_SHORT *)out, bitlength); + } + else + { + unsigned long len = BITS_TO_WORDS(bitlength); + register unsigned long i; + + for (i = 0; i < len; i++) + out[i] = ~ left[i]; + MASK_UNUSED_WORD_BITS((out + len - 1), bitlength % SET_WORD_SIZE); + } +} |