VecVecChar.generate constructor

VecVecChar.generate(
  1. int length,
  2. Iterable<int> generator(
    1. int i
    )
)

Implementation

factory VecVecChar.generate(int length, Iterable<int> Function(int i) generator) {
  final p = ccore.std_VecVecChar_new(length);
  int count = 0;
  for (var i = 0; i < length; i++) {
    final pts = generator(i);
    count += pts.length;
    final pp = ccore.std_VecChar_new(pts.length);
    final ppData = ccore.std_VecChar_data(pp);
    ppData.cast<I8>().asTypedList(pts.length).setAll(0, pts);
    ccore.std_VecVecChar_set(p, i, pp);
  }
  return VecVecChar.fromPointer(p, externalSize: count * ffi.sizeOf<ffi.Char>());
}