Function strlen30

lib-src/sqlite/shell.c:624–628

** Compute a string length that is limited to what can be stored in ** lower 30 bits of a 32-bit signed integer. */

** lower 30 bits of a 32-bit signed integer.
*/
static int strlen30(const char *z){
  const char *z2 = z;
  while( *z2 ){ z2++; }
  return 0x3fffffff & (int)(z2 - z);
}

/*
** Return the length of a string in characters.  Multibyte UTF8 characters