Re: vector, table and pair, C++ [modified] - C / C++ / MFC Discussion Boards

Re: Serialize

Cedric Moonen30-May-07 0:51

Cedric Moonen

30-May-07 0:51

I found this series of articles[^] quite interesting.

Cédric Moonen
Software developer

Charting control [v1.2]

Looking library for philips 9400 devices

anirudha24329-May-07 23:59

anirudha243

29-May-07 23:59

I am looking for a library, using which one can access philips 9400 devices. Library with read/write/download/delete files to/from device compatibility. Please help me. It's very urgent for me.

my email id:

amresh.kumar@photoninfotech.net

boot configuration

saisp29-May-07 23:54

saisp

29-May-07 23:54

hi can we get the boot priority configuration in windows through mfc code? i am having first bootable as harddisj, second as some external device and third on as usb drive. how to get this through our mfc code?.pls help me

vector, table and pair, C++

C_Zealot29-May-07 23:21

C_Zealot

29-May-07 23:21

Hi all:

I am having a problem here:

void WordTable::addWord(string newWord, streampos pos_newWord){}; is the function signature of the function "addWord", which is a member of class "WordTable".

It receives two input arguments, one string "newWord" anther one streampos "pos_newWord".

WordTable has a private variable "table" which is of type "map". It is defined as:

map<string, vector<streampos="">> table;

When "addWord" receive two arguments, I use:

this->table.insert(make_pair(newWord, ((this->table).second).push_back(pos_newWord)));

to store the variables into a table. But I keep getting error messages telling me "second is not a member of map<_Key, _Val."

Can anyone help?

Thank you

Re: vector, table and pair, C++

Cedric Moonen29-May-07 23:35

Cedric Moonen

29-May-07 23:35

I don't understand what you are trying to do. And your code doesn't display nicely because you didn't select the code tag.

second will only work on iterators, not on the map itself so what are you trying to do there ?

Cédric Moonen
Software developer

Charting control [v1.2]

Re: vector, table and pair, C++

C_Zealot29-May-07 23:48

C_Zealot

29-May-07 23:48

Hi:

Thank you for your reply.

Basically, what I try to do is to read from a text file and put every word and their associated positions in the file into a container, "table" of map type.
"table" is defined as:

 public:<br />
	typedef vector<streampos> OccurrenceList;<br />
private:<br />
	typedef map<string, OccurrenceList>::iterator WordIterator;<br />
	map<string, OccurrenceList> table;<br />
public:<br />
	WordTable(void);<br />
	void addWord(string word, streampos pos);

"addWord" is defined as:

void WordTable::addWord(string newWord, streampos pos_newWord)<br />
{<br />
	if (this->table.empty()) {<br />
		this->table.insert(make_pair(newWord, ((this->table).second).push_back(pos_newWord)));<br />
		}

What I try to achieve is: when a new word is read from the file, I will store the word itself (as a string) and its position in the file into "table".

Thank you

Re: vector, table and pair, C++

Cedric Moonen29-May-07 23:56

Cedric Moonen

29-May-07 23:56

What are you trying to do here:
((this->table).second)

A map doesn't have any member called second, only iterators have. So there is something wrong there.

Also, how is your map declared (when using < and >, you need to replace them by the symbols next to the code tag). Can't you simply do something like that:
table[newWord] = pos_newWord;

And what happens if a same word appears several time in the file Confused | :confused:

Cédric Moonen
Software developer

Charting control [v1.2]

Re: vector, table and pair, C++ [modified]

Rajkumar R31-May-07 4:05

Rajkumar R

31-May-07 4:05

Hi,
I think your are trying to add multiple occurrence of the word in a vector list in the corresponding word entry.

you may do like this,

 <br />
void WordTable::addWord(string newWord, streampos pos_newWord)<br />
{<br />
   map<string, OccurenceList>::iterator Iter;<br />
   Iter = table.find(newWord)<br />
   if (Iter == table.end())<br />
   { /* insert for the first occurrence */<br />
     OccurenceList list;<br />
     list.push_back(pos_newWord);<br />
     table.insert(make_pair(newWord, list));<br />
   }<br />
   else<br />
   {/* insert for next occurence */<br />
     Iter.second.push_back(pos_newWord);<br />
   }<br />
 .<br />
 .<br />
 .<br />

In your code I think your are also inserting multiple times the same word.

And Also you may make this more simpler if your are using multimap

<br />
<br />
multimap<string, streampos> table;<br />
then you simply needs to do <br />
table.insert(make_pair(newWord, pos_newWord));<br />

Best Regards

-- modified at 0:12 Friday 1st June, 2007

Re: vector, table and pair, C++

C_Zealot31-May-07 4:12

C_Zealot

31-May-07 4:12

Hi:

This is exactly what I did, (did not use multimap()) and it worked.

Thank you very much.

Load combobox

matjame29-May-07 22:41

matjame

29-May-07 22:41

Hi all.

Im trying to load data into a combo box during form load.The items Im trying to load are from a database.

Now here is my little code that gives me errors.

protected void Page_Load(object sender, EventArgs e)
{
con.ConnectionString = str;
String str1 = "Select * from Filter";
con.Open();
cm.Connection = con;
dtr = cm.ExecuteReader();
if (dtr.Read())
{
// Load FilterByKeys onto the combo box
cboExtension.Text = (dtr["FilterKey"]).ToString();<<*****Problem**** Sigh | :sigh:

lblMessage.Text = "Good. All the values are loaded";

kagiso

Re: Load combobox

CPallini29-May-07 22:56

CPallini

29-May-07 22:56

Maybe reporting the exception text will help.
BTW, have you a FilterKey field in your table. Do you want to popolate the combo (i.e. add items) or set its text?

BTW2: wrong forum?
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Re: Load combobox

toxcct29-May-07 23:03

toxcct

29-May-07 23:03

this stinks like managed code on a wrong forum...

as your question on the right board buddy

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

Re: Load combobox

super_ttd12-Jun-07 11:14

super_ttd

12-Jun-07 11:14

Changing dialog box colour

neha.agarwal2729-May-07 22:20

neha.agarwal27

29-May-07 22:20

Hi all,

I have made sdi application. In that i have made a dialog box derived from CFormView. I want to change dialog box colour to white but no EraseBackgrnd function is coming when i open Class wizard

Can anybody help me in this?

Thanks in advance.

Re: Changing dialog box colour

Nibu babu thomas29-May-07 22:25

Nibu babu thomas

29-May-07 22:25

neha.agarwal27 wrote:
no EraseBackgrnd

Look for WM_ERASEBKGND.

Nibu thomas
A Developer

Code must be written to be read, not by the compiler, but by another human being.

http:\\nibuthomas.wordpress.com

How can i add toolbar and menu bar using Shared Addin?

Banks K29-May-07 22:18

Banks K

29-May-07 22:18

Hello All,

I am creating a shared addin for word application. now i have to add toolbar and menu bar to word application.

if any one have idea about this than please share with me.

Thanks

Re: How can i add toolbar and menu bar using Shared Addin?

sw@thi29-May-07 22:46

sw@thi

29-May-07 22:46

You will have to implement IDTExtensibility interface and in IDTExtensibility::OnConnection you have to add the Toolbar Button and Menu items.

Search for "office addin " in google you might find some article about how to create Addins.

Regards,
Swathi

"a child will grow up to become an adult, but you can never stop the adult from acting like a child"

XP style

CodeMak29-May-07 21:56

CodeMak

29-May-07 21:56

How to get XP style window ( GUI ) using MFC????
Thanx n Advance..... Smile | :)

Re: XP style

Nibu babu thomas29-May-07 22:02

Nibu babu thomas

29-May-07 22:02

arshadkc wrote:
How to get XP style window ( GUI ) using MFC????

Add this one line to your .rc file, open it in a text editor.

CREATEPROCESS_MANIFEST_RESOURCE_ID RT_MANIFEST "YourApp.exe.manifest"

YourApp.exe.manifest should be your application's manifest file.

Nibu thomas
A Developer

Code must be written to be read, not by the compiler, but by another human being.

http:\\nibuthomas.wordpress.com

860309 - limiting # of errors

ilostmyid229-May-07 21:49

ilostmyid2

29-May-07 21:49

hi anyone knows how can i make VC not to continue code generation after a specified number of errors/warnings?!
TC about 16 years earlier had this capability as well as nested comments!
MS isn't going to respect its users needs?!

Re: 860309 - limiting # of errors

toxcct29-May-07 22:27

toxcct

29-May-07 22:27

it's still like that AFAIK...!

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

static member

nitin329-May-07 21:32

nitin3

29-May-07 21:32

How can i access non static members in a static member function

thanks

Re: static member

toxcct29-May-07 21:38

toxcct

29-May-07 21:38

no, because a static member has no this pointer, so it doesn't know a particular instance of the class

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

Re: static member

CPallini29-May-07 22:02

CPallini

29-May-07 22:02

You have to explicitely pass such members as function arguments.
(Of course you can also pass the whole object the members belonging to).
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

Re: static member

toxcct29-May-07 22:26

toxcct

29-May-07 22:26

the question was not really how to do it but is it posible to do it.

i think that if he really tries to access a data member from a static one, he definitely has a design problem, and should resise his model ; either the static member shouldn't be static, or maybe the data member access can be set static itself...

[VisualCalc][Binary Guide][CommDialogs] | [Forums Guidelines]

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.