static size_t DecodeFrameHeader()

in csharp/src/ZStdDecompress.cs [628:637]

• 10 lines of code
• 6 McCabe index (conditional complexity)

		static size_t DecodeFrameHeader(ZSTD_DCtx dctx, void* src, size_t headerSize)
		{
			size_t result = ZSTD_getFrameHeader_advanced(ref dctx.fParams, src, headerSize, dctx.format);
			if (IsError(result)) return result;    /* invalid header */
			if (result > 0) return ERROR(Error.srcSize_wrong);  /* headerSize too small */
			if (dctx.fParams.dictID != 0 && (dctx.dictID != dctx.fParams.dictID))
				return ERROR(Error.dictionary_wrong);
			if (dctx.fParams.checksumFlag != 0) XXH64_reset(dctx.xxhState, 0);
			return 0;
		}