RE: compile error on template using gcc 3.4.4 that worked for gcc 3.3.x

["Karl Kobata" <karl.kobata@syncira.com>]

Ian,

You are correct.  I added "this->".  It corrected the errors I was getting.

Thanks very much.
karl

-----Original Message-----
From: Ian Lance Taylor [mailto:iant@google.com] 
Sent: Wednesday, May 09, 2007 4:59 PM
To: Karl Kobata
Cc: gcc-help@gcc.gnu.org
Subject: Re: compile error on template using gcc 3.4.4 that worked for gcc
3.3.x

"Karl Kobata" <karl.kobata@syncira.com> writes:

> ============== source that is erroring ===============
> 36 template<class T> class OutputBuffer : public Buffer<T> {
> 37 public:
> 38    virtual int Flush() = 0;
> 39    virtual int Put(const T& t) { *pt++ = t; return pt >= end ? Flush()
:
> 0; }
> 40    OutputBuffer(unsigned int sz):Buffer<T>(sz) { pt = base; }
> 41    OutputBuffer(T* b, unsigned int sz):Buffer<T>(b, sz) { pt = base; }
> 42    OutputBuffer() { pt = base; }
> 43    ~OutputBuffer() {}
> 44 };
> 
> ========== error messages using gcc 3.4.4 =================
> /home/AppsTest/MGen/MgenLibrary/aeg/include/generic/buffer.h:39: error:
`pt'
> undeclared (first use this function)

I don't see any declaration of 'pt' in the above code snippet.

If 'pt' is declared in the base class, then you need to say
"this->pt".  To see why, search the net for "two-phase lookup."  gcc
3.4 implemented a new C++ parser which is much more standards
compliant.

Ian