yaole
21 lines
396 B
Go
21 lines
396 B
Go
//go:build !go1.15
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// +build !go1.15
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package gmath
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import (
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"math/big"
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)
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// FillBytes fill the buf with the abs of a in big-endian with zero extention.
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// if buf is two short, then return error, while Big.Int's FillBytes panic
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func FillBytes(a *big.Int, buf []byte) error {
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if (a.BitLen()+7)/8 > len(buf) {
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return ErrBufTooShort
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}
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b := ToNBytes(a, len(buf))
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copy(buf, b)
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return nil
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}
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