51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
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package binary
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import (
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"encoding/binary"
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"io"
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)
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// Write writes the binary representation of data into w, using BigEndian order
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// https://golang.org/pkg/encoding/binary/#Write
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func Write(w io.Writer, data ...interface{}) error {
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for _, v := range data {
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if err := binary.Write(w, binary.BigEndian, v); err != nil {
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return err
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}
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}
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return nil
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}
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func WriteVariableWidthInt(w io.Writer, n int64) error {
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buf := []byte{byte(n & 0x7f)}
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n >>= 7
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for n != 0 {
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n--
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buf = append([]byte{0x80 | (byte(n & 0x7f))}, buf...)
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n >>= 7
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}
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_, err := w.Write(buf)
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return err
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}
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// WriteUint64 writes the binary representation of a uint64 into w, in BigEndian
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// order
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func WriteUint64(w io.Writer, value uint64) error {
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return binary.Write(w, binary.BigEndian, value)
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}
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// WriteUint32 writes the binary representation of a uint32 into w, in BigEndian
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// order
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func WriteUint32(w io.Writer, value uint32) error {
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return binary.Write(w, binary.BigEndian, value)
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}
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// WriteUint16 writes the binary representation of a uint16 into w, in BigEndian
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// order
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func WriteUint16(w io.Writer, value uint16) error {
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return binary.Write(w, binary.BigEndian, value)
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}
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