RE:RE: [Dev-C++] typedef for a class

[Pierre R. <pie...@wa...>]

Jaap,

Thank you for your answer. This point escaped me. I found some very =
interresting "workarounds",=20

www.gotw.ca/gotw/079.htm

http://msdn.microsoft.com/library/en-us/dndeepc/html/deep08032000.asp=20

but they need to modyfy the code in each place where smart_ptr appears.

As I don't want to search all the "smart_ptr" occurrences, I will stay =
with the "#define" solution.=20

Regards

Pierre Raoul=20

> -----Original Message-----
> From: Jaap de Wolff [mailto:wo...@Ne...]
> Sent: Friday, March 21, 2003 3:28 PM
> To: 'Pierre Raoul'
> Subject: RE: [Dev-C++] typedef for a class
>=20
>=20
> What you do wrong is that you try to make a template to a type.
> The CPtr template is a template, and  n o t  a class, so you can't
> typedef a new type to it.
> You can use a define, while define is a preprocessor trick, not a =
compiler
> trick.
>=20
> > -----Original Message-----
> > From: Pierre Raoul [mailto:pie...@wa...]
> > Sent: Friday, March 21, 2003 11:37 AM
> > To: Sourceforge. Net Dev-Cpp-Users@Lists.
> > Subject: [Dev-C++] typedef for a class
> >=20
> >=20
> > Hello,
> >=20
> > I'm using Dev-Cpp 4.9.7.0, GCC 3.2, MingW 2.0.0.3, Msys=20
> > 1.0.7, under Windows Me.
> >=20
> > I'd like to use a new type of smart pointer but without=20
> > changing all the reference in the code. I try the code below:
> >=20
> > - in a header file cptr.h, I have:
> >=20
> > template < class T > =20
> > class CPtr    //   Counted Pointer =20
> > { =20
> > [...]
> > };    //   CPtr=20
> >=20
> > - and in an other file, I put:
> >=20
> > [...]
> > #include <string>
> > #include "include/cptr.h"       // smart pointer CPtr
> >=20
> > [...]
> > using std::string ;
> >=20
> > typedef CPtr smart_ptr ;
> > //#define smart_ptr CPtr
> > typedef smart_ptr< string > StringPtr ;
> >=20
> > [...]
> >=20
> > The compiler gives a "syntax error before ;" for the line=20
> > "define CPtr smart_ptr;".
> > Everything is OK if I use "#define CPtr smart_ptr".=20
> >=20
> > I don't see where is the point with this error? Any idea?
> >=20
> > Thanks
> >=20
> > Pierre Raoul
> >=20
> >=20
> >=20
> >=20
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> >=20