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Newsgroups: comp.lang.ada
Date: Tue, 18 Sep 2018 14:28:50 -0700 (PDT)
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Subject: Re: Interface To C Struct That Includes An Array
From: rogermc@iinet.net.au
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Xref: reader02.eternal-september.org comp.lang.ada:54363
Date: 2018-09-18T14:28:50-07:00
List-Id: <comp.lang.ada>

On Wednesday, 19 September 2018 04:55:35 UTC+10, rakusu...@fastmail.jp  wro=
te:
> =D0=B2=D1=82=D0=BE=D1=80=D0=BD=D0=B8=D0=BA, 18 =D1=81=D0=B5=D0=BD=D1=82=
=D1=8F=D0=B1=D1=80=D1=8F 2018 =D0=B3., 14:54:37 UTC+3 =D0=BF=D0=BE=D0=BB=D1=
=8C=D0=B7=D0=BE=D0=B2=D0=B0=D1=82=D0=B5=D0=BB=D1=8C rog...@iinet.net.au =D0=
=BD=D0=B0=D0=BF=D0=B8=D1=81=D0=B0=D0=BB:
> > I agree but I don't know how to avoid it.
> > Would pragma Convention (C, API_String) be OK?
> > Also, I'm not sure that API_String is ever actually copied as all the i=
nterfacing is by pointers?
> As ARM12 says, a records always passed to a C functions by reference in a=
ll modes other than an =E2=80=9Cin=E2=80=9D. So if it does not a desirable =
behaviour, there are no reasons for this pragma and =E2=80=9Cpragma Convent=
ion (C, API_String)=E2=80=9D would be clear and enough.
>=20
> Btw, it is not helpful for your problem, sorry. There are nothing suspici=
ous for me neither in your code, nor the Assimp code: https://code.woboq.or=
g/qt5/qt3d/src/3rdparty/assimp/code/MaterialSystem.cpp.html#aiGetMaterialSt=
ring Looks like the \x0B\x00\x00\x00phoenix.pcx\x00 sequence is the filenam=
e actually stored in aiMaterial. So, as you decided before, it would be bet=
ter to look for input data.

Thanks for your advice.
It definitely looks like my input data structure is incorrect so I'm workin=
g on fixing that up now.