text: #include <mbstring.h>
  
  /*
   * @implemented
   */
  unsigned char * _mbsrev(unsigned char *s)
  {
  	unsigned char  *e;
  	unsigned char  a;
  	unsigned char  *e2;
  	e=s;
  	while (*e) {
  		if ( _ismbblead(*e) ) {
  			a = *e;
  			e2 = e;
  			*e2 = *++e;
  			if ( *e == 0 )
  				break;
  			*e = a;
  		}
  		e++;
  	}
  	while (s<e) {
  		a=*s;
  		*s=*e;
  		*e=a;
  		s++;
  		e--;
  	}
  
  
  	return s;
  }
  