/* * call-seq: * dvector << number -> dvector * * Append---Pushes the given number on to the end of this vector. This * expression returns the vector itself, so several appends * may be chained together. * * Dvector[ 1, 2 ] << -3.3 << 1e3 -> Dvector[ 1, 2, 3.3, 1000.0 ] * */ VALUE dvector_push(VALUE ary, VALUE item) {