dev-cpp-users — Dev-C++ users discussion list

Re: [Dev-C++] Data types

[Per W. <pw...@ia...>]

I hope you have never seen any code doing

#define true 0

since the compiler treats any non-zero value as TRUE, i.e. the reverse
condition.

Also, in c++ true is reserved word, just like int or char, so in C++ you
don't have to #define anything.

A lot of C code are using

#define FALSE 0
#define TRUE 1

or possibly

#define FALSE 0
#define TRUE (!FALSE)

/Per W

On Sat, 3 Jan 2004, Noorez Kassam wrote:

> There are somethings i don't understand.
>
> I thought that you needed the windows.h file to use the  UINT for unsigned
> int? When I was programing for MS-DOS i never saw the UINT for unsigned int.
>
> and what would this program line do
> #define true 0
>
> and what is an unsigned char?
>
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Re: [Dev-C++] WxWindows makefile FUBAR?

[Per W. <pw...@ia...>]

I just downloaded the 2.4.2 windows install release

edited src/mingw32.bat point at my MinGW directory run run it.
checked contents of setup.h
changed to src/msw
make -f makefile.g95

Libraries built ok. I have installed MinGW myself. It says:

C:\usr\src\wxWindows-2.4.2\lib>gcc --version
gcc (GCC) 3.2 (mingw special 20020817-1)
Copyright (C) 2002 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE.

/Per W


On Sun, 4 Jan 2004, Michael C Urban wrote:

> Has anyone tried to build wxWindows 2.4.2 under Dev C++? it seems that the
> makefile.g95 is FUBAR. I've compiled wxWindows in the past using MinGW and
> Msys, but wxWindows 2.4.2 fails before it even gets started because it
> fails to create certain directories. I think it might have to do with the
> slashes going the wrong way and being interpreted as escape characters or
> something.
>
> Does anyone have insights on this?
>
>
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Re: [Dev-C++] Data types

[P.T. W. M. <pt...@ea...>]

Thanks for the corrections =)

At 20:24 03-01-04, Noorez Kassam wrote:
>There are somethings i don't understand.
>
>I thought that you needed the windows.h file to use the  UINT for unsigned 
>int? When I was programing for MS-DOS i never saw the UINT for unsigned int.
>
>and what would this program line do
>#define true 0
>
>and what is an unsigned char?
>
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Re: [Dev-C++] WxWindows makefile FUBAR?

[<or...@vp...>]

Michael C Urban wrote:
> Has anyone tried to build wxWindows 2.4.2 under Dev C++? it seems that the
> makefile.g95 is FUBAR. I've compiled wxWindows in the past using MinGW and
> Msys, but wxWindows 2.4.2 fails before it even gets started because it
> fails to create certain directories. I think it might have to do with the
> slashes going the wrong way and being interpreted as escape characters or
> something.
> 
> Does anyone have insights on this?

I know encountered this before. The quick'n'dirty solution is to watch 
which directories cannot it create, then create them yourself.

--
Greetings,
   Balázs

Re: [Dev-C++] Data Types

[<or...@vp...>]

Hi!

I personally recommend including inttypes.h or stdint.h
Look around in stdint.h and you will find quite a few definitions, so 
you won't have to reinvent the wheel.

You'll probably need uint32_t

--
Greetings,
   Balázs

Re: [Dev-C++] first time user

[<or...@vp...>]

Pat Hunt wrote:
> I bought a book on how to program and Dev C++ 4.01 was included.  I 
> tried to do the hello world but every time I try to run the program 
> after I compile it I get a flash of some screen and that's all.  Dev 
> stays the same.  What do I do???

How about reading the faqing FAQ?

--
Greetings,
   Balázs

Re: [Dev-C++] Data Types

[Per W. <pw...@ia...>]

I wouldn't recommend to

#define UINT unsigned int

but would instead recommend the

typedef unsigned int UINT;

declaration.

/Per W

On Sun, 4 Jan 2004, Michael C Urban wrote:

> It's just an unsigned int. So yes, you can use it. You can even define a
> pre-processor macro for it if you want.
>
> Many of the data types you see in Windows programming are just typedefs or
> pre-processor macros for primitive types.
>
> On Sat, 3 Jan 2004, Noorez Kassam wrote:
>
> > Can the data types that you would see in WinApps like UINT (unsigned int) be
> > used without the windows.h file? Or do you need to define that sort of thing
> > without the windows header file?
> >
> > _________________________________________________________________
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> >
> >
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Re: [Dev-C++] Data Types

[Per W. <pw...@ia...>]

Not directly.

If you don't use the windows.h file, you must yourself add the line

typedef unsigned int UINT;

in your program - or include some other include files that contains the
above line.

/Per W

On Sat, 3 Jan 2004, Noorez Kassam wrote:

> Can the data types that you would see in WinApps like UINT (unsigned int) be
> used without the windows.h file? Or do you need to define that sort of thing
> without the windows header file?
>
> _________________________________________________________________
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>
>
>
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Re: [Dev-C++] Data types

[Per W. <pw...@ia...>]

No, there are no compilers where int is default unsigned.

However, the char data type might be default signed or unsigned. If
unsigned, it will store - at least - the range 0..255 while a signed char
will store - at least - -128..+127.

/Per W

On Sat, 3 Jan 2004, P.T. Waugh MA wrote:

> An unsigned int is an unsigned integer which is an integer from 0 to the
> maximum value that sizeof(int) will hold on your system which is the value
> it would take on if all the bits were 1's.  This is on many systems the
> default for "int".  This is as compared to a signed int which uses the most
> significant bit of the byte or word to determine the "sign" (positive or
> negative) of the variable.    Such bytes (or words) are then interpreted as
> negative.
>
> UINT is either a pre-processor macro, or (more likely) a typedef (alias)
> for unsigned int.
>
> For example:
>
> // Define an alias for unsigned int type
> typedef UINT unsigned int
>
> then to do this:
>
> // Standard way
> unsigned int uivar
>
> // You can now do this
> UINT uivar
>
> This typedef might be a part of windows.h... do a grep for it.
>
> At 20:24 03-01-04, Noorez Kassam wrote:
> >There are somethings i don't understand.
> >
> >I thought that you needed the windows.h file to use the  UINT for unsigned
> >int? When I was programing for MS-DOS i never saw the UINT for unsigned int.
> >
> >and what would this program line do
> >#define true 0
> >
> >and what is an unsigned char?
> >
> >_________________________________________________________________
> >The new MSN 8: smart spam protection and 2 months FREE*
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> >
> >
> >
> >-------------------------------------------------------
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>
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[Dev-C++] WxWindows makefile FUBAR?

[Michael C U. <mu...@cb...>]

Has anyone tried to build wxWindows 2.4.2 under Dev C++? it seems that the
makefile.g95 is FUBAR. I've compiled wxWindows in the past using MinGW and
Msys, but wxWindows 2.4.2 fails before it even gets started because it
fails to create certain directories. I think it might have to do with the
slashes going the wrong way and being interpreted as escape characters or
something.

Does anyone have insights on this?

Re: [Dev-C++] Data Types

[Michael C U. <mu...@cb...>]

It's just an unsigned int. So yes, you can use it. You can even define a
pre-processor macro for it if you want.

Many of the data types you see in Windows programming are just typedefs or
pre-processor macros for primitive types.

On Sat, 3 Jan 2004, Noorez Kassam wrote:

> Can the data types that you would see in WinApps like UINT (unsigned int) be
> used without the windows.h file? Or do you need to define that sort of thing
> without the windows header file?
>
> _________________________________________________________________
> MSN 8 with e-mail virus protection service: 2 months FREE*
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>
>
>
> -------------------------------------------------------
> This SF.net email is sponsored by: IBM Linux Tutorials.
> Become an expert in LINUX or just sharpen your skills.  Sign up for IBM's
> Free Linux Tutorials.  Learn everything from the bash shell to sys admin.
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[Dev-C++] Data Types

[Noorez K. <coo...@ho...>]

Can the data types that you would see in WinApps like UINT (unsigned int) be 
used without the windows.h file? Or do you need to define that sort of thing 
without the windows header file?

_________________________________________________________________
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Re: [Dev-C++] Data types

[P.T. W. M. <pt...@ea...>]

An unsigned int is an unsigned integer which is an integer from 0 to the 
maximum value that sizeof(int) will hold on your system which is the value 
it would take on if all the bits were 1's.  This is on many systems the 
default for "int".  This is as compared to a signed int which uses the most 
significant bit of the byte or word to determine the "sign" (positive or 
negative) of the variable.    Such bytes (or words) are then interpreted as 
negative.

UINT is either a pre-processor macro, or (more likely) a typedef (alias) 
for unsigned int.

For example:

// Define an alias for unsigned int type
typedef UINT unsigned int

then to do this:

// Standard way
unsigned int uivar

// You can now do this
UINT uivar

This typedef might be a part of windows.h... do a grep for it.

At 20:24 03-01-04, Noorez Kassam wrote:
>There are somethings i don't understand.
>
>I thought that you needed the windows.h file to use the  UINT for unsigned 
>int? When I was programing for MS-DOS i never saw the UINT for unsigned int.
>
>and what would this program line do
>#define true 0
>
>and what is an unsigned char?
>
>_________________________________________________________________
>The new MSN 8: smart spam protection and 2 months FREE*
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>
>
>
>-------------------------------------------------------
>This SF.net email is sponsored by: IBM Linux Tutorials.
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[Dev-C++] Data types

[Noorez K. <coo...@ho...>]

There are somethings i don't understand.

I thought that you needed the windows.h file to use the  UINT for unsigned 
int? When I was programing for MS-DOS i never saw the UINT for unsigned int.

and what would this program line do
#define true 0

and what is an unsigned char?

_________________________________________________________________
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RE: [Dev-C++] first time user

[Ed C. <em...@ed...>]

Hi Pat,
=20
At the end of the program, right before the "return 0;" line, add this:
system("PAUSE");
=20
Alternatively, you can open a command prompt, go to the directory where =
you
compiled the program, and type "helloworld" (or whatever you named it).
=20
Console programs don't stay open unless you tell them to.
=20
Hope that helps.
=20
-Ed
=20
=20
=20

-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of Pat Hunt
Sent: Saturday, January 03, 2004 7:30 PM
To: dev...@li...
Subject: [Dev-C++] first time user


I bought a book on how to program and Dev C++ 4.01 was included.  I =
tried to
do the hello world but every time I try to run the program after I =
compile
it I get a flash of some screen and that's all.  Dev stays the same.  =
What
do I do???

[Dev-C++] first time user

[Pat H. <Pa...@ac...>]

I bought a book on how to program and Dev C++ 4.01 was included.  I =
tried to do the hello world but every time I try to run the program =
after I compile it I get a flash of some screen and that's all.  Dev =
stays the same.  What do I do???

[Dev-C++] RE: ODBC for free tables (Was: SQL "SELECT COUNT(*)" loads whole table into memory)

[Ed C. <em...@ed...>]

Hi all,

I'm going to try rephrasing my question. If I'm using an ODBC driver to
connect to a Visual FoxPro (.dbf) data file, can I run queries without
loading the whole file into memory? For example, if I just want to count
records in a table, I would run the query "SELECT COUNT(*) FROM
[c:\somefile.dbf]", but the ODBC driver loads the whole table into RAM =
to
figure this out. How can I do this better?=20

Thanks for any help.

-Ed



-----Original Message-----
Sent: Friday, January 02, 2004 2:00 AM
To: dev...@li...
Subject: [Dev-C++] SQL "SELECT COUNT(*)" loads whole table into memory


Hi all,

Not technically a Dev-Cpp question, but I'm hoping somebody can help,
anyway. I'm working with an ODBC driver for Visual FoxPro 6 (as well as =
ODBC
drivers for several other RDBMSs). My application is supposed to loop
through a list of tables, run the single SQL statement "SELECT COUNT(*) =
FROM
tblname", get the result, then move on. At the end, I go back and tally =
all
the row counts.

In the process, I am simply reusing all my handles (environment,
connections, and recordsets), calling SQLGetData and SQLCloseCursor =
after
each query.

Now, here's the problem: even though I'm just doing SELECT COUNT(*), the
entire table is getting loaded into memory. My application's memory =
usage
goes from 6 MB to 100 +, though if I comment out just the FoxPro =
database
interaction, it stays around 8 MB, where I would expect it to be. The =
logic
and coding I'm doing for the FoxPro queries is absolutely identical to =
the
logic I'm using on the other databases, except, of course, for the
connection string, and I'm not having this problem with the other =
systems. I
should also point out that removing some of the larger tables from the =
list
of tables to check results in an almost perfectly corresponding drop in =
RAM
usage.

For what it's worth, doing the same query directly from Visual FoxPro 6
results in a RAM spike under 1 KB.

Anybody know what's wrong? Is there a driver setting I need to use or
something?

Thanks!

-Ed

[Dev-C++] tammyaustin@msn.com has a new email address

[<dan...@sb...>]

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a.button:link, a.button:visited, a.button:active, a.button:hover {
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td {
  font-family: verdana, lucida sans unicode, lucida sans, lucidux sans, lucida, arial, sans-serif;
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[Dev-C++] anyone using Dev-C++ to develop FS gauges?

[P.T. W. M. <pt...@ea...>]

Anyone out there using Dev-C++, or gcc, to compile MS Flight Simulator gauges?

I'm in the middle of developing a project for FS, and want to use gcc, but 
think I'm going to have to resort to Borland to avoid having to 
correct/update all the MS .h files etc.  Curious if anyone else does this too.

Patrick

RE: [Dev-C++] gcc docs in other than ps

[P.T. W. M. <pt...@ea...>]

Already have distiller, which will convert .ps to .pdf or whatever format I 
need on win32.  Actually, I found the docs in other formats on the site, 
and had even downloaded them already - just didn't realize it till I began 
taking inventory.

That's the problem doing too much at once.

At 02:01 03-01-04, Haakon M. Eriksen wrote:
>Hi!
>
>Download gsview 4.4 and the ghostscript library - all available for
>win32. It reads PS and PDF very well, and starts much faster than
>Acrobat Reader.
>
>Cheers!
>
>
>Haakon
>
>
>
>-------------------------------------------------------
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RE: [Dev-C++] gcc docs in other than ps

[Haakon M. E. <ha...@nh...>]

Hi!

Download gsview 4.4 and the ghostscript library - all available for
win32. It reads PS and PDF very well, and starts much faster than
Acrobat Reader.

Cheers!


Haakon

Re: [Dev-C++] re: This and that Dev-cpp IDE

[Per W. <pw...@ia...>]

One reason why Linux might be mentioned a lot is that the MinGW compiler
used in Dev-C++ is a Windows port of the gcc c/c++ compiler. This compiler
is originally written for Unix machines. Since GNU/Linux has a
non-ignorable chunk of the Unix market, it is quite natural that a lot of
examples etc are mentioning Linux. The goal with MinGW was to keep the
compiler as untouched as possible, while generating code runnable in the
Win32 environment. That is the reason why all builds are performed using
the make tool.

Implementing "view user output" for command-line programs doesn't need to
be so hard. Half the work is performed by linking in a replacement for the
clean-up code, that will check if the application was run standalone or
from the IDE. If run from the IDE, the application window should stay
open. The only part the IDE have to do then, is to find out which console
window that belongs to the running application. As a matter of fact, it is
possible for anyone interested to add this feature themselves, by adding
an own-written little app to the Tools menu.

/Per W

On Fri, 2 Jan 2004, William W Cridland wrote:

> I would thank the members for giving expert suggestions and advice
> concerning the public domain IDE Compiler Dev-cpp C++. I wrote to the
> three design and developers of this system. Like a lot of many C++
> programmers I am comfortable with Borland Compilers and IDE platforms and
> miss some of the good attributes which should have been incorporated into
> this Dev-cpp IDE. I am not sure why they had to re-invent the wheel and
> use another batch of include library files. Also the merry go round one
> has to fathom out to get a final presentaion on the screen. As I point
> out later Borland has a drop down menu which  include ' User Screen' to
> see the result of our code. I am not the greatest programmer in fact I am
> a hardware engineer but intrigued with all the facets of C++ . This is
> the inputs I wrote to the three desiners of the ID. Don't understand how
> they came up with the name seen enough of that on the telly.
>
>   ' Copy of e-mail-Start :
> Gentlemen thank you for an excellent job 0n the developement and design
> of the Dev-C++ IDE/Compiler et al.However  a few points should be
> addressed to make the IDE more useable for the public. Understand that
> the design was based on the new standard ANSI/ISO C/C++ and also to
> address different cross platforms Linux etc. THe IDE is very versatile
> and functional except that there is no button or drop down menu whatever
> which will allow the user to look at the output. Example Borland IDE's
> has a separate drop down menu, when you click on 'User Screen' voila up
> comes the result and output to the screen.One must innovate ,conjure up
> go around to implement this feature. I have tried several 'A pause
> statement , function getchar() there are no doubt other means of beating
> around the bush. For instance in Borland I used  a one liner getche() in
> my Blank file so I did not have to do anything to the program . At the
> end of writing the code and compiling, run output came up on the screen.
>                          May I suggest that this should have been an
> integral part of the IDE design. Using the ' pause' work around incurrs
> penalties and cross platform problems.
>                             In the Question & Answer section the CLEAR
> Screen command was brought up and you suggested we include Conio.c in the
> Dev-C++ System File. I suggest the 'Clear Screen' function should been
> activated with it's own Include header file. Now it could be there is a
> file already for this manoeuvre, if so I get 50 lashes.
>                           In your help files you go to great lengths to
> explain all about 'C' programming and it's very well done . However most
> of us have moved on to C++ and perhaps it  would have been prudent to at
> least write some examples of C++ code. Just to introduce the newcomer to
> differences due to ANSI/ISO changes and implementing the code with the
> Dev-C++ IDE.
>                            Finally Linux is continually mentioned as
> though they had a stake in the company. This system you explain is the
> reason so many things were changed causing us Borland user added work.
> Considering the percentage of LInux users it seems to me as though we
> should have put that at the back of the burner. Would like a response to
> these concerns with the public interest in mind . End of e-mail.
>                             If we are going to use an IDE and this one
> seems to measure up and it's free then let's get it right .
>
> Bill Cridland E.E. Bolton MA
>
>
> -------------------------------------------------------
> This SF.net email is sponsored by: IBM Linux Tutorials.
> Become an expert in LINUX or just sharpen your skills.  Sign up for IBM's
> Free Linux Tutorials.  Learn everything from the bash shell to sys admin.
> Click now! http://ads.osdn.com/?ad_id=1278&alloc_id=3371&op=click
> _______________________________________________
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> Dev...@li...
> TO UNSUBSCRIBE: http://www23.brinkster.com/noicys/devcpp/ub.htm
> https://lists.sourceforge.net/lists/listinfo/dev-cpp-users
>

Re: [Dev-C++] Executable size is huge

[<or...@vp...>]

jo mateix wrote:
> Yes, Mingw is free, but for sure it is not the best C++ 
> compiler. Still a lot of work to do.

Well, it depends. If you want the *most* C++ standards-comliant compiler 
today, it is GCC (MinGW).

I think standards-compliance is far ahead of minor speed improvement or 
smaller exe files. And I doubt there is a lot of work to do, GCC 3 only 
needs minor improvements.

And if you (I mean the original author of exe size) still don't like 
large exe's, then there is UPX.
With stripping, then compressing with UPX, it got me a 64 KB exe, that 
is a simple C++ program.

And if that is still too big, then you'd better start learning machine code.

--
Greetings,
   Balázs

[Dev-C++] re: This and that Dev-cpp IDE

[William W C. <wa...@ju...>]

I would thank the members for giving expert suggestions and advice
concerning the public domain IDE Compiler Dev-cpp C++. I wrote to the
three design and developers of this system. Like a lot of many C++
programmers I am comfortable with Borland Compilers and IDE platforms and
miss some of the good attributes which should have been incorporated into
this Dev-cpp IDE. I am not sure why they had to re-invent the wheel and
use another batch of include library files. Also the merry go round one
has to fathom out to get a final presentaion on the screen. As I point
out later Borland has a drop down menu which  include ' User Screen' to
see the result of our code. I am not the greatest programmer in fact I am
a hardware engineer but intrigued with all the facets of C++ . This is
the inputs I wrote to the three desiners of the ID. Don't understand how
they came up with the name seen enough of that on the telly.
                   
  ' Copy of e-mail-Start :
Gentlemen thank you for an excellent job 0n the developement and design
of the Dev-C++ IDE/Compiler et al.However  a few points should be
addressed to make the IDE more useable for the public. Understand that
the design was based on the new standard ANSI/ISO C/C++ and also to
address different cross platforms Linux etc. THe IDE is very versatile
and functional except that there is no button or drop down menu whatever
which will allow the user to look at the output. Example Borland IDE's
has a separate drop down menu, when you click on 'User Screen' voila up
comes the result and output to the screen.One must innovate ,conjure up
go around to implement this feature. I have tried several 'A pause
statement , function getchar() there are no doubt other means of beating
around the bush. For instance in Borland I used  a one liner getche() in
my Blank file so I did not have to do anything to the program . At the
end of writing the code and compiling, run output came up on the screen.
                         May I suggest that this should have been an
integral part of the IDE design. Using the ' pause' work around incurrs
penalties and cross platform problems.
                            In the Question & Answer section the CLEAR
Screen command was brought up and you suggested we include Conio.c in the
Dev-C++ System File. I suggest the 'Clear Screen' function should been
activated with it's own Include header file. Now it could be there is a
file already for this manoeuvre, if so I get 50 lashes.
                          In your help files you go to great lengths to
explain all about 'C' programming and it's very well done . However most
of us have moved on to C++ and perhaps it  would have been prudent to at
least write some examples of C++ code. Just to introduce the newcomer to
differences due to ANSI/ISO changes and implementing the code with the
Dev-C++ IDE.
                           Finally Linux is continually mentioned as
though they had a stake in the company. This system you explain is the
reason so many things were changed causing us Borland user added work.
Considering the percentage of LInux users it seems to me as though we
should have put that at the back of the burner. Would like a response to
these concerns with the public interest in mind . End of e-mail.
                            If we are going to use an IDE and this one
seems to measure up and it's free then let's get it right . 

Bill Cridland E.E. Bolton MA

Re: [Dev-C++] Executable size is huge

[jo m. <non...@ho...>]

hello,
It seems there are a lot of "pure C" fans here. However, I think the problem 
is not C++ itself. If you are dealing with complex and serious projects, you 
need the high-level facilities, and I think it is better to rely on the 
language itself than on "customized" libraries that are so often buggy, 
non-portable and badly implemented. Besides, if you are learning, your time 
is better invested if you learn generalities than learning how to use a 
particular library. The actual problem is the compiler. Yes, Mingw is free, 
but for sure it is not the best C++ compiler. Still a lot of work to do.
Sorry for bad English. Bye.


>From: Maya <Esc...@ne...>
>CC: DevCpp User Group <dev...@li...>
>Subject: Re: [Dev-C++] Executable size is huge
>Date: Wed, 31 Dec 2003 20:37:35 -0800
>
>Get a hold of you, man!!
>Remember that as soon as you include <iostream> or <string> or any of the 
>C++ libraries, you are loading a whole lot of huge templates. The C++ 
>library is not what it used to be before the templetization. If you think 
>that the small program you have writing is to big for your machine to 
>handle, why not use the 'C' library. There is nothing wrong with the 'C' 
>language, it is just another methodology.
>
>Happy new year every one, have one, have two, have three, but leave the car 
>keys at home.
>

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