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[Octave-bug-tracker] [bug #53544] -Wclass-memaccess warnings

From: John W. Eaton
Subject: [Octave-bug-tracker] [bug #53544] -Wclass-memaccess warnings
Date: Mon, 2 Apr 2018 12:38:56 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0

Follow-up Comment #2, bug #53544 (project octave):

I hope there is a better way, but does the attached patch avoid the warning?

I think the problem is that octave_intN and octave_uintN types are classes,
not POD types, so passing a pointer to an octave_intN object to memcpy is
questionable.  But we know it is OK because these objects contain only a
single data member that is the corresponding intN_t value.

This problem comes up often because sometimes we want an array of octave_intN
objects and sometimes we want an array of intN_t objects.  Maybe we can use
some template specializations to do better than the current fortra_vec
function.  That's something we can look at after the release.

(file #43770)

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File name: int-cast-diffs                 Size:3 KB


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