Changed INFINITY to std::numeric_limits<float>::infinity()
Changed INFINITY to std::numeric_limits<float>::infinity()

wkentaro/chainer,hvy/chainer,niboshi/chainer,hvy/chainer,wkentaro/chainer,chainer/chainer,wkentaro/chainer,chainer/chainer,hvy/chainer,chainer/chainer,pfnet/chainer,niboshi/chainer,hvy/chainer,chainer/chainer,niboshi/chainer,niboshi/chainer,wkentaro/chainer