Method mutable_data

src/core/common/common.cc:25–31

namespace singa {

void* Block::mutable_data() {
  if (data_ == nullptr && size_ > 0) {
    data_ = device_->Malloc((int)size_);
  }
  initialized_ = true;
  return static_cast<char*>(data_) + offset_;
}

const void* Block::data() const {
  CHECK(initialized_) << "Must initialize data before reading it";