# Next step: the ZX Spectrum
HTML (experimental)
，这一点在im钱包官方下载中也有详细论述
Stream implementations can and do ignore backpressure; and some spec-defined features explicitly break backpressure. tee(), for instance, creates two branches from a single stream. If one branch reads faster than the other, data accumulates in an internal buffer with no limit. A fast consumer can cause unbounded memory growth while the slow consumer catches up, and there's no way to configure this or opt out beyond canceling the slower branch.，详情可参考同城约会
struct foo { int length; char d[0]; } *s = malloc(sizeof(int)+n);