type math/big.byteReader

5 uses

	math/big (current package)
		floatconv.go#L302: 	_, _, err := z.scan(byteReader{s}, 0)
		intconv.go#L217: type byteReader struct {
		intconv.go#L221: func (r byteReader) ReadByte() (byte, error) {
		intconv.go#L229: func (r byteReader) UnreadByte() error {
		intconv.go#L255: 	_, _, err := z.scan(byteReader{s}, base)