text: #include <stdint.h>
  #include <string.h>
  
  static inline uint32_t swapc(uint32_t x, int c)
  {
  	return c ? x>>24 | x>>8&0xff00 | x<<8&0xff0000 | x<<24 : x;
  }
  
  const char *__mo_lookup(const void *p, size_t size, const char *s)
  {
  	const uint32_t *mo = p;
  	int sw = *mo - 0x950412de;
  	uint32_t b = 0, n = swapc(mo[2], sw);
  	uint32_t o = swapc(mo[3], sw);
  	uint32_t t = swapc(mo[4], sw);
  	if (n>=size/4 || o>=size-4*n || t>=size-4*n || ((o|t)%4))
  		return 0;
  	o/=4;
  	t/=4;
  	for (;;) {
  		uint32_t ol = swapc(mo[o+2*(b+n/2)], sw);
  		uint32_t os = swapc(mo[o+2*(b+n/2)+1], sw);
  		if (os >= size || ol >= size-os || ((char *)p)[os+ol])
  			return 0;
  		int sign = strcmp(s, (char *)p + os);
  		if (!sign) {
  			uint32_t tl = swapc(mo[t+2*(b+n/2)], sw);
  			uint32_t ts = swapc(mo[t+2*(b+n/2)+1], sw);
  			if (ts >= size || tl >= size-ts || ((char *)p)[ts+tl])
  				return 0;
  			return (char *)p + ts;
  		}
  		else if (n == 1) return 0;
  		else if (sign < 0)
  			n /= 2;
  		else {
  			b += n/2;
  			n -= n/2;
  		}
  	}
  	return 0;
  }
  