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package multiaddr
import (
"math"
"github.com/multiformats/go-varint"
)
// CodeToVarint converts an integer to a varint-encoded []byte
func CodeToVarint(num int) []byte {
if num < 0 || num > math.MaxInt32 {
panic("invalid code")
}
return varint.ToUvarint(uint64(num))
}
func ReadVarintCode(b []byte) (int, int, error) {
code, n, err := varint.FromUvarint(b)
if err != nil {
return 0, 0, err
}
if code > math.MaxInt32 {
// we only allow 32bit codes.
return 0, 0, varint.ErrOverflow
}
return int(code), n, err
}
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