func math/rand.read

4 uses

	math/rand (current package)
		rand.go#L279: 	return read(p, r.src, &r.readVal, &r.readPos)
		rand.go#L282: func read(p []byte, src Source, readVal *int64, readPos *int8) (n int, err error) {
		rand.go#L376: 	n, err = read(p, fs, readVal, readPos)
		rand.go#L556: 	n, err = read(p, r.s, readVal, readPos)