switch {
		case encoder[i] == '\n' || encoder[i] == '\r':
			panic("encoding alphabet contains newline character")
		case e.decodeMap[encoder[i]] != invalidIndex:
			panic("encoding alphabet includes duplicate symbols")
		}
		e.decodeMap[encoder[i]] = uint8(i)
	}
	return e
}

// StdEncoding is the standard base32 encoding, as defined in RFC 4648.

			},
			assertOnError: assertNilError,
		},
	})

	group(t, "map", []test{
		{
			name:          "reject duplicate negative int keys into struct",
			modes:         []cbor.DecMode{modes.DecodeLax},
			in:            hex("a220012002"), // {-1: 1, -1: 2}
			into:          struct{}{},
			assertOnError: assertIdenticalError(&cbor.DupMapKeyError{Key: int64(-1), Index: 1}),
		},
		{