Hi Dave,
The compiler did not accept your solution either.
This is how I handled it:
BinHTTPInputStreamCommon.hpp:
class XMLUTIL_EXPORT BinHTTPInputStreamCommon : public BinInputStream
{
public :
virtual XMLFilePos curPos() const;
virtual XMLSize_t readBytes
(
XMLByte* const toFill
, const XMLSize_t maxToRead
);
virtual const XMLCh *getContentType() const{};
virtual const XMLCh *getContentType();
protected :
BinHTTPInputStreamCommon(MemoryManager *manager);
virtual ~BinHTTPInputStreamCommon();
..........................
..........................
}
BinHTTPInputStreamCommon.cpp:
const XMLCh *BinHTTPInputStreamCommon::getContentType()
{
if(fContentType == 0) {
// mutable
//const_cast<XMLCh*&>(fContentType) =
const_cast<BinHTTPInputStreamCommo
n*>(this)->findHeader("Content-Type");
fContentType =
const_cast<BinHTTPInputStreamCommon*>(this)->findHeader("
Content-Type");
}
return fContentType;
}
There is one derivation from BinHTTPInputStreamCommon:
class XMLUTIL_EXPORT UnixHTTPURLInputStream : public
BinHTTPInputStreamCommon
However, UnixHTTPURLInputStream does not redefine getContentType().
Regards,
Alona
-----Original Message-----
From: David Bertoni [mailto:[email protected]]
Sent: Friday, January 22, 2010 6:09 PM
To: [email protected]
Subject: Re: xerces-c 3.0.1 build fails on HP-UX 11.00 with aCC A.03.35
On 1/22/2010 7:38 AM, Alona Rossen wrote:
> Hello,
>
> I receive the following error when I build xerces-c 3.0.1 with aCC: HP
> ANSI C++ B3910B A.03.35:
>
> Error 742: "xercesc/util/NetAccessors/BinHTTPInputStreamCommon.cpp",
> line 260
> # Source type unsigned short *const and target type unsigned
short
> *& in a
> const_cast can only differ in their qualifiers
> const_cast<XMLCh*&>(fContentType) =
> const_cast<BinHTTPInputStreamCo
This is an "interesting" way of modifying a data member in a const
member function. Can you try this instead, to see if it works?
const_cast<BinHTTPInputStreamCommon*>(this)->fContentType =
const_cast<BinHTTPInputStreamCommon*>(this)->findHeader("Content-Type");
We really should just make this data member mutable, since the code as
it stands results in undefined behavior.
Dave
