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BitUtil: Delta, ZigZag, NumBits, Floating Point,...

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powturbo
2017-06-13 09:14:19 +02:00
parent 8400b9650e
commit 5150e46fe9
1 changed files with 6 additions and 6 deletions
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12
bitutil.c
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@ -33,7 +33,7 @@ unsigned bit64(uint64_t *in, unsigned n) { uint64_t b; BITSIZE_( in, n, b, 64);
//------------ Delta ----------------------------------
#define DE(i) x = _p[i]-start-_md; start = _p[i]
#define BITDE(_t_, _p_, _n_, _md_, _act_) { _t_ *_p; const _md = _md_;\
#define BITDE(_t_, _p_, _n_, _md_, _act_) { _t_ *_p, _md = _md_;\
for(_p = _p_; _p != _p_+(_n_&~(4-1)); _p += 4) { DE(0);_act_; DE(1);_act_; DE(2);_act_; DE(3);_act_; }\
for(;_p != _p_+_n_;_p++) { DE(0); _act_; }\
}
@ -60,8 +60,8 @@ unsigned bitd32(uint32_t *in, unsigned n, uint32_t start) {
b |= x;
}
#else
uint32_t b = 0,_x,*_p;
BITDE(in,n, 0, start, b |= _x);
uint32_t b = 0,x;
BITDE(uint32_t,in,n, 0, b |= x);
#endif
return bsr32(b);
}
@ -130,7 +130,7 @@ unsigned bitd132(uint32_t *in, unsigned n, uint32_t start) {
}
#else
uint32_t b = 0,x;
BITDE(uint32_t, in, n, 1, b |= _x);
BITDE(uint32_t, in, n, 1, b |= x);
#endif
return bsr32(b);
}
@ -252,7 +252,7 @@ unsigned bitz32(unsigned *in, unsigned n, unsigned start) {
}
#else
uint32_t b = 0, x;
BITZENC(uint32_t, in, n, start, b |= _x);
BITZENC(uint32_t, in, n, start, b |= x);
#endif
return bsr32(b);
}
@ -363,4 +363,4 @@ void bitxdec64(uint64_t *p, unsigned n, uint64_t start) { BITXDEC(uint64_t, p, n
unsigned bitfm8( uint8_t *in, unsigned n, uint8_t *pmin) { uint8_t mi,mx; BITFM(uint8_t, in, n); *pmin = mi; return bsr8( mx - mi); }
unsigned bitfm16(uint16_t *in, unsigned n, uint16_t *pmin) { uint16_t mi,mx; BITFM(uint16_t, in, n); *pmin = mi; return bsr16(mx - mi); }
unsigned bitfm32(uint32_t *in, unsigned n, uint32_t *pmin) { uint32_t mi,mx; BITFM(uint32_t, in, n); *pmin = mi; return bsr32(mx - mi); }
unsigned bitfm64(uint64_t *in, unsigned n, uint64_t *pmin) { uint64_t mi,mx; BITFM(uint16_t, in, n); *pmin = mi; return bsr64(mx - mi); }
unsigned bitfm64(uint64_t *in, unsigned n, uint64_t *pmin) { uint64_t mi,mx; BITFM(uint64_t, in, n); *pmin = mi; return bsr64(mx - mi); }