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33 lines
478 B
Go
33 lines
478 B
Go
package main
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type ring struct {
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buf [100]byte
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start, end int
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}
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func (r *ring) writeByte(b byte) {
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if b == '\n' {
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r.end = 0
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r.start = r.end
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return
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}
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r.buf[r.end] = b
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r.end++
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if r.end >= len(r.buf) {
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r.end = 0
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}
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if r.end == r.start {
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r.start++
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if r.start >= len(r.buf) {
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r.start = 0
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}
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}
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}
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func (r *ring) string() string {
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if r.start < r.end {
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return string(r.buf[r.start:r.end])
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}
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return string(r.buf[r.start:]) + string(r.buf[:r.end])
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}
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