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33 lines
614 B
Go
33 lines
614 B
Go
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package data
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import (
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"encoding/binary"
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"fmt"
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"io"
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)
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type ColumnUint32 struct {
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}
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const SIZE_Uint32 = 4
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func (c *ColumnUint32) Read(buf []byte, readerAt io.ReaderAt, offset int64, i int64) uint32 {
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if n, err := readerAt.ReadAt(buf, offset+i*SIZE_Uint32); n == SIZE_Uint32 && err == nil {
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return binary.BigEndian.Uint32(buf)
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}
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return 0
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}
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func WriteUint32s(buf []byte, data []uint32) (err error) {
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off := 0
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size := len(data)
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if len(buf) < size<<2 {
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return fmt.Errorf("buf too small")
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}
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for _, dat := range data {
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binary.BigEndian.PutUint32(buf[off:], dat)
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off += SIZE_Uint32
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}
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return nil
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}
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