46 lines
1.2 KiB
C
46 lines
1.2 KiB
C
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/*
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* (c) copyright 1983 by the Vrije Universiteit, Amsterdam, The Netherlands.
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*
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* This product is part of the Amsterdam Compiler Kit.
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*
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* Permission to use, sell, duplicate or disclose this software must be
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* obtained in writing. Requests for such permissions may be sent to
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*
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* Dr. Andrew S. Tanenbaum
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* Wiskundig Seminarium
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* Vrije Universiteit
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* Postbox 7161
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* 1007 MC Amsterdam
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* The Netherlands
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*
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*/
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/*
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* L L G E N
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*
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* An Extended LL(1) Parser Generator
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*
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* Author : Ceriel J.H. Jacobs
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*/
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/*
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* sets.h $Header$
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* Some macros that deal with bitsets and their size
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*/
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# define BITS (8 * sizeof (int))
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# define IN(a,i) ((a)[(i)/BITS] & (1<<((i) % BITS)))
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# define NTIN(a,i) ((a)[((i)+tbitset)/BITS]&(1<<((i)%BITS)))
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# define PUTIN(a,i) ((a)[(i)/BITS] |=(1<<((i) % BITS)))
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# define NTPUTIN(a,i) ((a)[((i)+tbitset)/BITS]|=(1<<((i)%BITS)))
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# define NBYTES(n) (((n) + 7) / 8)
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/*
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* The next two macros operate on byte counts!
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*/
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# define NINTS(n) (((n) + (int) (sizeof(int) - 1)) / (int) sizeof(int))
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# define ALIGN(n) (NINTS(n) * (int) sizeof (int))
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extern int tbitset;
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extern p_set *setptr,*maxptr,*topptr;
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extern int tsetsize,setsize;
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