mem_uncompressΒΆ
mem_uncompress uncompresses a string that was compressed with mem_compress or zlib.
-
ssString = mem_uncompress(ssStringCompressed) -
ssByteString = mem_uncompress(ssByteCompressed, nDestLen)
Return Value
ssString is a scalar string which may contain Null-characters.
ssByteString: If invoked with two parameters, ssByteString contains the zlib compressed data (without the 8 byte header, described in mem_compress).
Parameters
-
ssStringCompressed ssStringCompressed is the compressed string (mem_compress).
-
ssByteCompressed ssByteCompressed is a zlib compressed string.
-
nDestLen nDestLen is the size in bytes of the uncompressed ssByteCompressed string.
Example
see mem_compress.
Invoke with 2 parameters:
def test_mem_compress()
{
ssData = "Hello World, this is the data to compress";
c = mem_compress(ssData);
// Remove 8 byte header
nbytes = mem_len(c);
ssCompressed = mem_get(c, 9, nbytes-8);
ssD= mem_uncompress(ssCompressed, strlen(ssData));
ssData2 = mem_unpack(ssD);
if (ssData2 != ssData) {
error();
}
}
Comment
This function uses the zlib-Library (http://www.gzip.org/zlib/). Copyright (C) 1995-1998 Jean-loup Gailly and Mark Adler.
History
| Version | Description |
|---|---|
| R2018.6 | New Parameter nDestLen |
| 5.0.0 | ??? |
| 4.2.0 | New |
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