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#define SIGLENINT 63 /* >121 => key will toast, so it will not
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#define SIGLEN ( sizeof(int4)*SIGLENINT )
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#define SIGLENBIT (SIGLEN*BITBYTE)
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typedef char BITVEC[SIGLEN];
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typedef char *BITVECP;
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for(i=0;i<SIGLEN;i++) {\
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for(i=0;i<SIGLENBIT;i++) {\
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#define GETBYTE(x,i) ( *( (BITVECP)(x) + (int)( (i) / BITBYTE ) ) )
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#define GETBITBYTE(x,i) ( ((char)(x)) >> i & 0x01 )
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#define CLRBIT(x,i) GETBYTE(x,i) &= ~( 0x01 << ( (i) % BITBYTE ) )
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#define SETBIT(x,i) GETBYTE(x,i) |= ( 0x01 << ( (i) % BITBYTE ) )
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#define GETBIT(x,i) ( (GETBYTE(x,i) >> ( (i) % BITBYTE )) & 0x01 )
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#define HASHVAL(val) (((unsigned int)(val)) % SIGLENBIT)
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#define HASH(sign, val) SETBIT((sign), HASHVAL(val))
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#define ALLISTRUE 0x04
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#define ISARRKEY(x) ( ((GISTTYPE*)x)->flag & ARRKEY )
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#define ISSIGNKEY(x) ( ((GISTTYPE*)x)->flag & SIGNKEY )
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#define ISALLTRUE(x) ( ((GISTTYPE*)x)->flag & ALLISTRUE )
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#define GTHDRSIZE ( sizeof(int4)*2 )
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#define CALCGTSIZE(flag, len) ( GTHDRSIZE + ( ( (flag) & ARRKEY ) ? ((len)*sizeof(int4)) : (((flag) & ALLISTRUE) ? 0 : SIGLEN) ) )
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#define GETSIGN(x) ( (BITVECP)( (char*)x+GTHDRSIZE ) )
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#define GETARR(x) ( (int4*)( (char*)x+GTHDRSIZE ) )
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#define ARRNELEM(x) ( ( ((GISTTYPE*)x)->len - GTHDRSIZE )/sizeof(int4) )