assert(ptr != nullptr);
assert(ptr != nullptr);
chainer/chainer,okuta/chainer,jnishi/chainer,keisuke-umezawa/chainer,keisuke-umezawa/chainer,niboshi/chainer,jnishi/chainer,niboshi/chainer,okuta/chainer,ktnyt/chainer,tkerola/chainer,okuta/chainer,keisuke-umezawa/chainer,keisuke-umezawa/chainer,wkentaro/chainer,hvy/chainer,ktnyt/chainer,jnishi/chainer,chainer/chainer,chainer/chainer,hvy/chainer,niboshi/chainer,okuta/chainer,hvy/chainer,chainer/chainer,jnishi/chainer,wkentaro/chainer,ktnyt/chainer,wkentaro/chainer,wkentaro/chainer,niboshi/chainer,ktnyt/chainer,pfnet/chainer,hvy/chainer