C / C++ / MFC

18-Jul-03 21:07

Thanks Bob...every bit of advice helps.

Big Grin | :-D

"The man who reads nothing is better educated than the man who reads nothing but newspapers."- Thomas Jefferson

John M. Drescher17-Jul-03 20:21

17-Jul-03 20:21

I assume you are talking about the file view of your project?? If you look on the disk there is no folder created.

John

DaveE9th17-Jul-03 20:39

17-Jul-03 20:39

Yes, in the file view. What disk are you referring to? Do you mean on the CD? Even if I create a program from scratch, I still get the "External Dependencies" folder. I was just curious what it was, I see from Andrew's post that it's for defining different size vaiables. I'm not sure why that happens...I thought everything was defined in the program...hmmm.

Thanks

Big Grin | :-D

"The man who reads nothing is better educated than the man who reads nothing but newspapers."- Thomas Jefferson

John M. Drescher18-Jul-03 3:59

18-Jul-03 3:59

DaveE9th wrote:
What disk are you referring to?

The disk drive where your project is located. The "External Dependencies" folder is harmless and gives you a list of the files that are included in your project by other include files and not in a .cpp file.

John

DaveE9th18-Jul-03 7:45

18-Jul-03 7:45

Thanks again

Big Grin | :-D

"The man who reads nothing is better educated than the man who reads nothing but newspapers."- Thomas Jefferson

Bob Stanneveld18-Jul-03 8:10

Bob Stanneveld

18-Jul-03 8:10

It lists all include files that are included indirect in my project. then why doesn't it list afx.h, ... when I only include afxwin.h?
thanks

John M. Drescher18-Jul-03 8:39

18-Jul-03 8:39

I am not exactly sure. It may be do to the way you include them #include <afx.h> or #include "afx.h". I do know that all the header files from libraries that I have included using a single include file in my stdafx.h file are put in this list. For me this is several hundred files..

John

basetsd.h?

DaveE9th17-Jul-03 20:14

17-Jul-03 20:14

I've noticed that in many of my VC++ programs that a folder called "External Dependencies" is automatically created in the directory. It contains only one file, basetsd.h I'm curious what this is for. I've not seen that header file before. Thanks, Dave

Big Grin | :-D

"The man who reads nothing is better educated than the man who reads nothing but newspapers."- Thomas Jefferson

Template Class App-Wizard Parsing Error

Andrew Walker17-Jul-03 20:18

Andrew Walker

17-Jul-03 20:18

I think it's the predominantly the definitions of different sized variables.

typedef signed char         INT8, *PINT8;<br />
typedef signed short        INT16, *PINT16;<br />
typedef signed int          INT32, *PINT32;<br />
typedef signed __int64      INT64, *PINT64;<br />
typedef unsigned char       UINT8, *PUINT8;<br />
typedef unsigned short      UINT16, *PUINT16;<br />
typedef unsigned int        UINT32, *PUINT32;<br />
typedef unsigned __int64    UINT64, *PUINT64;

If you can keep you head when all about you
Are losing theirs and blaming it on you;
If you can dream - and not make dreams your master;
If you can think - and not make thoughts you aim;
Yours is the Earth and everything that's in it.

Rudyard Kipling

Wonderful Cow17-Jul-03 18:40

17-Jul-03 18:40

I have included a templated stack class in a visual c++ project(ver 6). It will compile and run fine, but when I try to use class wizard i get the following error message:
Parsing error: Identifier expected.
Input Line: "StackType<CString> hy_back;"
To quote Ned Flander's beatnik parents, "I have tried nothing and am all out of ideas."

Missing: Wonder Cow, LooseScrew, Clark, Screwage, AlterEgo, packingascwdriver, Rob Irtson, IB, George Harrison? I weep. (please, never ask...to painful.)

John M. Drescher17-Jul-03 19:04

17-Jul-03 19:04

Do have this declared inside of the classwizard blocks?

Here are two examples of what I mean (there are more):

//{{AFX_VIRTUAL(CTestMfcprjView)
// You can not declare variables here!
//}}AFX_VIRTUAL



//{{AFX_DATA_INIT(CAboutDlg)	
// You should avoid declaring variables here!
//}}AFX_DATA_INIT

John

Wonderful Cow17-Jul-03 19:37

17-Jul-03 19:37

I checked but it appears OK. This is kind of a strange problem. My template class is in a header file, because for whatever reason, the compiler would not accept the template class seperated into two files. I tried putting it only in a implementation file, but I get a "unexpected end of file" compiler error. As is, it works, but I can't use class wizard to add functions to the view class, where the stacks are declared. Makes me want to pull my "fricking" hair out.

Below is my stack class, maybe there is something I am missing.

#include <cstddef>
#include <new>

template <class ItemType>
struct NodeType;

template<class ItemType>
class StackType
{
public:
StackType();
void MakeEmpty();
bool IsFull() const;
bool IsEmpty() const;
int LengthIs() const;
void Push(ItemType item);
void Pop(ItemType& item);
private:
NodeType<ItemType>* topPtr;
int length;
};

//implementation
template <class ItemType>
struct NodeType
{
ItemType info;
NodeType<ItemType>* next;
};

template<class ItemType>
StackType<ItemType>::StackType()
{
topPtr = NULL;
length = 0;
}

template<class ItemType>
void StackType<ItemType>::Pop(ItemType& item)
{
if (IsEmpty())
throw CString("PopOnEmptyStack");//PopOnEmptyStack();
else
{
NodeType<ItemType>* tempPtr;
tempPtr = topPtr;
item = topPtr ->info;
//cout<<item<<endl;
topPtr = topPtr->next;
delete tempPtr;
length--;
}
}

template<class ItemType>
bool StackType<ItemType>::IsFull() const
{
NodeType<ItemType>* location = NULL;
location = new NodeType<ItemType>;

if(location != NULL)
{
delete location;
return false;
}
else
{
return true;
}
}

template <class ItemType>
void StackType<ItemType>::Push(ItemType newItem)
{
if (IsFull())
throw CString("PushOnFullStack");//PushOnFullStack();
else
{
NodeType<ItemType>* ptr;
ptr = new NodeType<ItemType>;
ptr->info = newItem;
ptr->next = topPtr;
topPtr = ptr;
length++;
}
}

template <class ItemType>
void StackType<ItemType>::MakeEmpty()
{
NodeType<ItemType>* tempPtr;

while (topPtr != NULL)
{
tempPtr = topPtr;
topPtr = topPtr->next;
delete tempPtr;
}

length = 0;
}

template <class ItemType>
bool StackType<ItemType>::IsEmpty() const
{
return (topPtr == NULL);
}

template <class ItemType>
int StackType<ItemType>::LengthIs() const
{
return length;
}

Missing: Wonder Cow, LooseScrew, Clark, Screwage, AlterEgo, packingascwdriver, Rob Irtson, IB, George Harrison? I weep. (please, never ask...to painful.)

John M. Drescher17-Jul-03 19:57

17-Jul-03 19:57

Wonderful Cow wrote:
I tried putting it only in a implementation file, but I get a "unexpected end of file" compiler error.

Well the short answer is you can't put it in an implementation file. Here is the explanation:

http://www.codeproject.com/cpp/templatesourceorg.asp?target=templates%7C%2Dasp[^]

As for the "unexpected end of file" compiler error that is because you are using precompiled headers. With precompiled headers the first statement in every implementation file must be #include "stdafx.h" otherwise you will have problems...

I would check your view class for the error, it is most likely there.

John

Andrew Walker17-Jul-03 20:03

Andrew Walker

17-Jul-03 20:03

Perhaps you could try using the standard library stack adapter.

#include <stack>

and replace StackType<CString> hy_back with std::stack<CString> hy_back;

John M. Drescher17-Jul-03 20:07

17-Jul-03 20:07

I doubt that the error has anything to do with the template for StackType but in my opinion it will be much better to do this. Unless your teacher or boss told you how to implement this I see no reason to reinvent a standard c++ template class...

John

Andrew Walker17-Jul-03 20:13

Andrew Walker

17-Jul-03 20:13

Process of elimination.

If it won't work, delete the classwizard file and try to rebuild it...

John M. Drescher17-Jul-03 19:49

17-Jul-03 19:49

The reason why I asked is that these are the tags that the classwizard uses to parse your code.

Move the line :

StackType<CString> hy_back;"

somewhere else in your class definition.

John

Wonderful Cow17-Jul-03 21:35

17-Jul-03 21:35

Thank you. That was the problem. It was in the view header between the afx comment tags. I moved it below and It worked. Before, I had been looking in another place. Thanks again.

Missing: Wonder Cow, LooseScrew, Clark, Screwage, AlterEgo, packingascwdriver, Rob Irtson, IB, George Harrison? I weep. (please, never ask...to painful.)

Wonderful Cow17-Jul-03 21:09