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8bfd56b59e
Now that these functions are behind _COSMO_SOURCE there's no reason for having the ugly underscore anymore. To use these functions, you need to pass -mcosmo to cosmocc.
11 lines
455 B
C
11 lines
455 B
C
#ifndef COSMOPOLITAN_LIBC_STR_THOMPIKE_H_
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#define COSMOPOLITAN_LIBC_STR_THOMPIKE_H_
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#include "libc/intrin/bsr.h"
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#define ThomPikeCont(x) (0200 == (0300 & (x)))
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#define ThomPikeByte(x) ((x) & (((1 << ThomPikeMsb(x)) - 1) | 3))
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#define ThomPikeLen(x) (7 - ThomPikeMsb(x))
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#define ThomPikeMsb(x) ((255 & (x)) < 252 ? bsr(255 & ~(x)) : 1)
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#define ThomPikeMerge(x, y) ((x) << 6 | (077 & (y)))
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#endif /* COSMOPOLITAN_LIBC_STR_THOMPIKE_H_ */
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