Function strlen30

src/database/cppsqlite3.cpp:975–979

** 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);
}


/* zIn is either a pointer to a NULL-terminated string in memory obtained