in lib/src/int32.dart [37:47]
static int _decodeDigit(int c) {
if (c >= _CC_0 && c <= _CC_9) {
return c - _CC_0;
} else if (c >= _CC_a && c <= _CC_z) {
return c - _CC_a + 10;
} else if (c >= _CC_A && c <= _CC_Z) {
return c - _CC_A + 10;
} else {
return -1; // bad char code
}
}