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@ -1,4 +1,4 @@ |
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/* $OpenBSD: bitstring.h,v 1.5 2003/06/02 19:34:12 millert Exp $ */ |
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/* $OpenBSD: bitstring.h,v 1.6 2020/05/10 00:56:06 guenther Exp $ */ |
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/* $NetBSD: bitstring.h,v 1.5 1997/05/14 15:49:55 pk Exp $ */ |
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/* |
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@ -83,46 +83,46 @@ typedef unsigned char bitstr_t; |
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/* clear bits start ... stop in bitstring */ |
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#define bit_nclear(name, start, stop) do { \ |
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register bitstr_t *_name = name; \ |
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register int _start = start, _stop = stop; \ |
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while (_start <= _stop) { \ |
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bit_clear(_name, _start); \ |
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_start++; \ |
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register bitstr_t *__name = (name); \ |
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register int __start = (start), __stop = (stop); \ |
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while (__start <= __stop) { \ |
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bit_clear(__name, __start); \ |
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__start++; \ |
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} \ |
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} while(0) |
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/* set bits start ... stop in bitstring */ |
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#define bit_nset(name, start, stop) do { \ |
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register bitstr_t *_name = name; \ |
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register int _start = start, _stop = stop; \ |
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while (_start <= _stop) { \ |
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bit_set(_name, _start); \ |
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_start++; \ |
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register bitstr_t *__name = (name); \ |
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register int __start = (start), __stop = (stop); \ |
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while (__start <= __stop) { \ |
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bit_set(__name, __start); \ |
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__start++; \ |
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} \ |
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} while(0) |
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/* find first bit clear in name */ |
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#define bit_ffc(name, nbits, value) do { \ |
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register bitstr_t *_name = name; \ |
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register int _bit, _nbits = nbits, _value = -1; \ |
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for (_bit = 0; _bit < _nbits; ++_bit) \ |
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if (!bit_test(_name, _bit)) { \ |
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_value = _bit; \ |
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register bitstr_t *__name = (name); \ |
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register int __bit, __nbits = (nbits), __value = -1; \ |
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for (__bit = 0; __bit < __nbits; ++__bit) \ |
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if (!bit_test(__name, __bit)) { \ |
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__value = __bit; \ |
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break; \ |
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} \ |
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*(value) = _value; \ |
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*(value) = __value; \ |
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} while(0) |
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/* find first bit set in name */ |
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#define bit_ffs(name, nbits, value) do { \ |
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register bitstr_t *_name = name; \ |
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register int _bit, _nbits = nbits, _value = -1; \ |
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for (_bit = 0; _bit < _nbits; ++_bit) \ |
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if (bit_test(_name, _bit)) { \ |
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_value = _bit; \ |
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register bitstr_t *__name = (name); \ |
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register int __bit, __nbits = (nbits), __value = -1; \ |
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for (__bit = 0; __bit < __nbits; ++__bit) \ |
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if (bit_test(__name, __bit)) { \ |
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__value = __bit; \ |
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break; \ |
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} \ |
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*(value) = _value; \ |
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*(value) = __value; \ |
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} while(0) |
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#endif /* !_BITSTRING_H_ */ |