Fixed clang compile error wrt mismatched types
Fixed clang compile error wrt mismatched types

cherryc/dynet,Abasyoni/dynet,mitchellstern/dynet,Peilun-Li/dynet,dhgarrette/cnn,dhgarrette/cnn,yoavg/cnn,yoavg/cnn,Abasyoni/dynet,cherryc/dynet,Peilun-Li/dynet,Peilun-Li/dynet,cherryc/dynet,kamigaito/cnn,Abasyoni/dynet,mitchellstern/dynet,kamigaito/cnn,dhgarrette/cnn