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package kagus
import (
"io"
)
// CountWriter wraps around an io.Writer and counts the amount of bytes written.
type CountWriter struct {
W io.Writer
N int64 // Total number of bytes written
}
func NewCountWriter(w io.Writer) *CountWriter {
return &CountWriter{W: w}
}
func (cw *CountWriter) Write(p []byte) (int, error) {
n, err := cw.W.Write(p)
cw.N += int64(n)
return n, err
}
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