[Webinar] Streamline your web hosting managementRegister Today

x
?
Solved

Rogue Wave RWTPtrHashDictionary-template as static

Posted on 1997-05-09
3
Medium Priority
?
519 Views
Last Modified: 2008-02-26
I am trying to use the RWTPtrHashDictionary-template as a static member
in a class, but my attempt at it fails to compile.
I am using Solaris2.5.1 with Sun C++-compiler 4.1. The Tools.h I use
is the one that comes with SunSoft VisualWorkshop C++ v 2.1.

Thanks a lot for any help

regards bård

My code:

#include <rw/tpordvec.h>
#include <rw/tphdict.h>
#include <rw/cstring.h>

typedef unsigned (*RWCStringHashFunction)(const RWCString& string);

unsigned hashString(const RWCString& string)
{
  return string.hash();
}

class Fails
{
  static RWTPtrHashDictionary< RWCString, RWCString >
_dict(RWCStringHashFunction);

  static RWTPtrOrderedVector< RWCString > _slask;

  Fails();
};

RWTPtrOrderedVector< RWCString > Fails::_slask; // ok

RWTPtrHashDictionary< RWCString, RWCString > Fails::_dict(hashString);
//fails to compile

Fails::Fails()
{
}

and the what the compiler thinks of it:

cd /home/inga/ttbwt/MOS/lib/
make -k Fails.o
CC -g -D__BUILTIN_VA_ARG_INCR  -v -V -ptv -sb  -I.
-I/home/inga/ttbwt/FMNETT/lib  -I/usr/openwin/share/include
-I/opt/SUNWspro/SC4.0/include/CC -I/usr/openwin/include  -DSVR4
-DSYSV      -c  Fails.C
CC: SC4.0 18 Oct 1995 C++ 4.1
### CC: Note: LM_LICENSE_FILE = /progs/dtidir/dtilicense.dat
### CC: Note: NLSPATH =
/opt/SUNWspro/bin/../SC4.0/bin/../lib/locale/C/LC_MESSAGES/%N
/opt/SUNWspro/bin/../SC4.0/bin/ccfe -sb -y-o -yFails.o -V -I.
-I/home/inga/ttbwt/FMNETT/lib -I/usr/openwin/share/include
-I/opt/SUNWspro/SC4.0/include/CC -I/usr/openwin/include -y-fbe
-y/opt/SUNWspro/bin/../SC4.0/bin/fbe -y-xarch=generic -y-verbose -O0
-ptf /tmp/18180%1.%2 -ptv -ptx /opt/SUNWspro/bin/../SC4.0/bin/CC -ptk
"-g -D__BUILTIN_VA_ARG_INCR -v -ptv -sb -I.
-I/home/inga/ttbwt/FMNETT/lib -I/usr/openwin/share/include
-I/opt/SUNWspro/SC4.0/include/CC -I/usr/openwin/include -DSVR4 -DSYSV -c
" -D__SunOS_5_5_1 -D__SUNPRO_CC=0x410 -Dunix -Dsun -Dsparc -D__sparc
-D__unix -D__sun -D__BUILTIN_VA_ARG_INCR -D__SVR4 -g +d -y-g
-I/opt/SUNWspro/SC4.0/include/CC -I/opt/SUNWspro/SC4.0/include/cc
-D__BUILTIN_VA_ARG_INCR -DSVR4 -DSYSV Fails.C -s /tmp/ccfe.18180.0.s
ccfe: SC4.0 10 May 1996 patch 102934-06
"Fails.C", line 23: Error: static Fails::_dict(unsigned(*)(const
RWCString&)) is not a static data member.
1 Error(s) detected.
*** Error code 1
make: Warning: Target `Fails.o' not remade because of errors

Compilation finished at Thu May  8 10:50:08
0
Comment
Question by:ttbwt
  • 2
3 Comments
 

Accepted Solution

by:
dkarr earned 200 total points
ID: 1163363
Your member "_dict" is actually being declared as a member function which returns a RWTPtrHashDictionary and has a single parameter which is a RWCStringHashFunction.  If you meant this to be a function, you need to define its implementation.  The form you are trying to use to define it makes it look (and I believe you thought) like a data member, but it is not.
0
 

Author Comment

by:ttbwt
ID: 1163364
He didn't tell me how to solve the problem, only that there is
a problem and a vague hint as to where the problem is.

I am still at a loss as to what to do, so I would like to know
how to actually resolve the problem.
0
 

Expert Comment

by:dkarr
ID: 1163365
As I alluded to before, we need to change _dict from a function into an object.

Change your class declaration to the following:

class Fails
{
   Fails();

   static RWTPtrHashDictionary< RWCString, RWCString > _dict;
   static RWTPtrOrderedVector< RWCString > _slask;
};

RWTPtrOrderedVector< RWCString > Fails::_slask;
RWTPtrHashDictionary<RWCString, RWCString> Fails::_dict(hashString);

0

Featured Post

2018 Annual Membership Survey

Here at Experts Exchange, we strive to give members the best experience. Help us improve the site by taking this survey today! (Bonus: Be entered to win a great tech prize for participating!)

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Errors will happen. It is a fact of life for the programmer. How and when errors are detected have a great impact on quality and cost of a product. It is better to detect errors at compile time, when possible and practical. Errors that make their wa…
Basic understanding on "OO- Object Orientation" is needed for designing a logical solution to solve a problem. Basic OOAD is a prerequisite for a coder to ensure that they follow the basic design of OO. This would help developers to understand the b…
The goal of the video will be to teach the user the difference and consequence of passing data by value vs passing data by reference in C++. An example of passing data by value as well as an example of passing data by reference will be be given. Bot…
The viewer will learn how to use the return statement in functions in C++. The video will also teach the user how to pass data to a function and have the function return data back for further processing.

608 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question