/**
 * _INTERNAL_WORD_H - various word size functions / macros
 */
#ifndef _MYOSIN_WORD_H
#define _MYOSIN_WORD_H

#include <stddef.h>
#include <stdint.h>

/**
 * WORD_LSB_ONE - Set low bit of each byte on arch word size to one.
 */
#define WORD_LSB_ONE ((size_t)-1 / (unsigned char)-1)

/**
 * WORD_MSB_ONE - Set high bit of each byte on arch word size to one.
 */
#define WORD_MSB_ONE (WORD_LSB_ONE * ((unsigned char)-1 / 2 + 1))

/**
 * word_has_zero - Word has a zero character
 * @w: Word
 */
static inline char word_has_zero(size_t w)
{
	return !!((w - WORD_LSB_ONE) & (~w & WORD_MSB_ONE));
}

/**
 * word_has_char - Word has a character
 * @w: Word
 */
static inline char word_has_char(size_t w, char c)
{
	return !!((w - WORD_LSB_ONE)
		  & ((~w & WORD_MSB_ONE)^(WORD_LSB_ONE * c)));
}

#endif /* !_INTERNAL_WORD_H */