/* * call-seq: * dvector.neg! -> dvector * * Replace each entry x of _dvector_ with -x. * * a = Dvector[ 1.1, -2.2, 5.3 ] * a.neg! -> Dvector[ -1.1, 2.2, -5.3 ] * a -> Dvector[ -1.1, 2.2, -5.3 ] */ VALUE dvector_neg_bang(VALUE ary) {