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From: Danny <clarked@aston.ac.uk>
Subject: Ada address of operator?
Date: 1999/02/09
Date: 1999-02-09T00:00:00+00:00	[thread overview]
Message-ID: <36C02FFC.458368B1@aston.ac.uk> (raw)

Hi,

I'm trying to use a C library in an Ada function and a typical prototype
from this library would be

struct AType;
struct  AnotherType;

int getObject( AType *pType, AnotherType **ppAnotherType );

I've imported the function okay and it is being called.  The purpose of
the function is to use AType as an IN parameter and return a pointer to
AnotherType, which will be pointed to by ppAnotherType if you get what I
mean.

In Ada I have corresponding records for AType & AnotherType and have
declared AnotherTypePtr and AnotherTypePtrPtr.  What I think I need to
do is

pAnotherType : AntherTypePtr;
ppAnotherType : AnotherTypePtrPtr;

but I need to assign ppAnotherType the address of pAnotherType, the
equivalent C code would be

AnotherType *pAnotherType;
AnotherType **ppAnotherType = &pAnotherType;

any suggestions?

-Danny





             reply	other threads:[~1999-02-09  0:00 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-02-09  0:00 Danny [this message]
1999-02-09  0:00 ` Ada address of operator? Niklas Holsti
1999-02-10  0:00 ` Nick Roberts
1999-02-12  0:00   ` Nick Roberts
1999-02-11  0:00 ` Matthew Heaney

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