lz4DecompressBlockWithDict

private fnsize_t lz4DecompressBlockWithDict(const(ubyte)[] src, ubyte[] dst, const(ubyte)[] dict)

Decompress a single LZ4 block with dictionary support.

When a dictionary is provided, match offsets that exceed the current output position reference data in the dictionary. The dictionary is treated as data that logically precedes the decompressed output.

Parameters

`src`	LZ4 block to decode.
`dst`	Destination buffer; must be large enough to hold the decompressed data.
`dict`	Optional dictionary data (may be null or empty).

Returns

Number of bytes written to dst.

Throws

- CompressionError with ErrorCode.TRUNCATED if the input block

ends prematurely.

CompressionError with ErrorCode.DATA_ERROR if an invalid

offset or other structural inconsistency is encountered.