[Octave-bug-tracker] [bug #47741] The scanf family of functions cannot parse 64bit hex numbers on Windows and 32bit Linux

[Mike Miller]

Follow-up Comment #3, bug #47741 (project octave):

For Matlab compatibility, from the help for fscanf, it seems they do not
support any length modifiers other than "l". They list the following
two-character conversions as supported: %ld, %li, %lu, %lo, %lx.

They also say that those conversions read 64-bit values, so I guess that is a
change we'll have to make.

As for the return value, the help says that if all conversions are
signed/unsigned 64-bit integers (meaning all %l+something), then the returned
array is of type int64 or uint64.

https://www.mathworks.com/help/matlab/ref/fscanf.html

Beyond that, any other length specifiers we support in addition, like "%hd" or
"%jx" or "%lf" is up to us.

I would be curious what Matlab returns for


sscanf('1000000000', '%d')
sscanf('3000000000', '%d')
sscanf('6000000000', '%d')



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