[Octave-bug-tracker] [bug #51741] zlib error when loading .mat file on Windows 10 64bit

[Xi Shen]

Follow-up Comment #7, bug #51741 (project octave):

Previously, when I say the md5 checksum of ex4data1.mat file on my affected
computer was the same as Dmitri's, I was using an external tool to compute the
checksum, not from Octave. Since we all believe the file is correct, I wonder
if there's some thing wrong with reading the file. So I did

>> hash('md5', fileread('ex4data1.mat'))
ans = caeaea99f82a3faf059cbd32ca0f5111

And it looks bad...I checked from the external tool again, and it confirms
that its md5 checksum is 7A879161A0E63D7156B33E11511FAD02.

Then I checked the md5 checksum of another file from Octave,

>> hash('md5', fileread('ex4weights.mat'))
ans = 8dddd0bb5ecf0633232c70e29aac8807

This time, the md5 checksum is the same as it is computed from external tool.

On my affected computer, it seems Octave has problem even reading the file,
not to say decompress it. But why this particular file?


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