46 lines
1006 B
C
46 lines
1006 B
C
/* hugeint.h implements huge integer operations at 128 bits */
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/* (c) in 2014 by Frank Wille */
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#ifndef HUGEINT_H
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#define HUGEINT_H
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#include "tfloat.h"
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typedef struct thuge {
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uint64_t hi,lo;
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} thuge;
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#define HUGEBITS 128
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#define HUGESIGN(h) ((h.hi & 0x8000000000000000LL) != 0)
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#define MAX_UINT64_FLOAT 1.8446744073709551616e+19
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thuge huge_zero(void);
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thuge huge_from_int(int64_t);
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int64_t huge_to_int(thuge);
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thuge huge_from_float(tfloat);
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tfloat huge_to_float(thuge);
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thuge huge_from_mem(int,void *,size_t);
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void *huge_to_mem(int,void *,size_t,thuge);
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int huge_chkrange(thuge,int);
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thuge hneg(thuge);
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thuge hcpl(thuge);
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thuge hnot(thuge);
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thuge hand(thuge,thuge);
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thuge hor(thuge,thuge);
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thuge hxor(thuge,thuge);
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thuge haddi(thuge,int64_t);
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thuge hadd(thuge,thuge);
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thuge hsub(thuge,thuge);
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int hcmp(thuge,thuge);
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thuge hshra(thuge,int);
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thuge hshr(thuge,int);
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thuge hshl(thuge,int);
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thuge hmuli(thuge,int64_t);
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thuge hmul(thuge,thuge);
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thuge hdiv(thuge,thuge);
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thuge hmod(thuge,thuge);
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#endif
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