Exemplos de allot_string_internal em C++ (Cpp)

Exemplo n.º 1

Arquivo: strings.cpp Projeto: Bigot/factor

/* Allocates memory */
string* factor_vm::reallot_string(string* str_, cell capacity) {
  data_root<string> str(str_, this);

  if (reallot_string_in_place_p(str.untagged(), capacity)) {
    str->length = tag_fixnum(capacity);

    if (to_boolean(str->aux)) {
      byte_array* aux = untag<byte_array>(str->aux);
      aux->capacity = tag_fixnum(capacity * 2);
    }

    return str.untagged();
  } else {
    cell to_copy = string_capacity(str.untagged());
    if (capacity < to_copy)
      to_copy = capacity;

    data_root<string> new_str(allot_string_internal(capacity), this);

    memcpy(new_str->data(), str->data(), to_copy);

    if (to_boolean(str->aux)) {
      byte_array* new_aux = allot_uninitialized_array<byte_array>(capacity * 2);
      new_str->aux = tag<byte_array>(new_aux);
      write_barrier(&new_str->aux);

      byte_array* aux = untag<byte_array>(str->aux);
      memcpy(new_aux->data<uint16_t>(), aux->data<uint16_t>(),
             to_copy * sizeof(uint16_t));
    }

    fill_string(new_str.untagged(), to_copy, capacity, '\0');
    return new_str.untagged();
  }
}

Exemplo n.º 2

Arquivo: strings.cpp Projeto: dmsh/factor

/* Allocates memory */
string *factor_vm::allot_string(cell capacity, cell fill)
{
	data_root<string> str(allot_string_internal(capacity),this);
	fill_string(str.untagged(),0,capacity,fill);
	return str.untagged();
}