package encoding/base64
DecodedLen returns the maximum length in bytes of the decoded data corresponding to n bytes of base64-encoded data.
Golang encoding/base64.Encoding.DecodedLen function usage examples
Example 1 :
bigmap = make([]byte, base64.StdEncoding.DecodedLen(4096*2))
Example 2 :
value = "abcd"
decoded := make([]byte, base64.URLEncoding.DecodedLen(len(value)))
References :
http://golang.org/pkg/encoding/base64/#Encoding.DecodedLen
