C / C++ / MFC

Re: Data structure to be used ???

5-Feb-04 3:16

Have you considered the CRecordset and CDatabase classes?

A rich person is not the one who has the most, but the one that needs the least.

Jagadeesh VN5-Feb-04 18:23

Jagadeesh VN

5-Feb-04 18:23

I want to develop the same in Plain C++, so that it can be ported to UNIX later.

"A robust program is resistant to errors -- it either works correctly, or it does not work at all; whereas a fault tolerant program must actually recover from errors."

Re: Data structure to be used ???

David Crow6-Feb-04 2:33

Argument list to the batch file

6-Feb-04 2:33

Since "plain" C++ has no knowledge of databases, recordsets, files, and the like, what you want, AFAIK, is not possible. In order to provide support for these, you'll need a platform-dependent API. I do not know of one for both Windows and UNIX, although it's been 15 years since I worked on a UNIX box so something just might be available.

A rich person is not the one who has the most, but the one that needs the least.

PrashantJ4-Feb-04 23:16

PrashantJ

4-Feb-04 23:16

HI,

I have a batch file which takes 11 arguments. 11th argument is the file name and if I try writing anything to that file, the system creates the file name from argument 1 and appends 0 to it.

eg.

@echo Something > "C:\Logs\%10"

If I run like this
xxx.bat a b c d e f g h i j k

It creates b0 file. But I want to create k0

Any idea??

- Prashant

Diddy4-Feb-04 23:27

Diddy

4-Feb-04 23:27

Er.. funny "Visual C++" question Smile | :)

Anyway, I belive the only way is like this:

shift
@echo Something > "C:\Logs\%90"

PrashantJ4-Feb-04 23:59

PrashantJ

4-Feb-04 23:59

But shift takes arguments 0 to 8. Here its 9 and does'nt work..

David Crow5-Feb-04 3:22

5-Feb-04 3:22

Batch files are limited to 10 (numbered 0-9) command-line arguments.

A rich person is not the one who has the most, but the one that needs the least.

Diddy5-Feb-04 11:15

Diddy

5-Feb-04 11:15

No...

Save this as test.bat:

@echo off
@echo %0
:again
if {%1}=={} goto :EOF
@echo %1 %2 %3 %4 %5 %6 %7 %8 %9
shift
goto again

Then execute "test.bat a b c d e f g h i j k l m n o p q r s t u v w x y z"

And you will see it prints out all 26 paramaters. You can only directly refer to the first 9, 10 including the file name, but you can shift more in. See here http://www.jsiinc.com/SUBN/tip6700/rh6792.htm.

The only limit AFAIK is the "%*" will only pass the 9 parameters, so you can't pass more than 9 to say another batch file, unless you shift each one in and call setlocal to assign them their own local variable, then pass all of them.

David Crow13-Feb-04 4:40

13-Feb-04 4:40

While the shift command does allow access to more than 10 arguments, only 10 of them accessible at any given time. I don't believe that satisifes the OP's original requirement. In other words, accessing %2 and %14 would not be possible.

However, I question the need of a program that requires that many command-line arguments.

A rich person is not the one who has the most, but the one that needs the least.

hello world

warbosspeter4-Feb-04 23:09

warbosspeter

4-Feb-04 23:09

I'm a noobie and trying to make Hello World in visual studio 2003.
It says: error C2065: 'cout' : undeclared identifier.

Please help.

Diddy4-Feb-04 23:30

Diddy

4-Feb-04 23:30

Put #include <iostream> at the top of your file

sps-itsec465-Feb-04 1:17

sps-itsec46

5-Feb-04 1:17

At the top of the source file, where you want to use cout:

#include <iostream.h>

Regards, mYkel

papaya_zm5-Feb-04 1:18

papaya_zm

5-Feb-04 1:18

need to put #include "stdio.h" at head

David Crow5-Feb-04 3:24

5-Feb-04 3:24

Which does nothing for cout. stdio.h is for printf and related functions.

A rich person is not the one who has the most, but the one that needs the least.