dev-cpp-users Mailing List for Dev-C++

Something interesting, i just got informed of a new C dialect made by
AT&T, "Cyclone".
 
 
  <http://www.research.att.com/projects/cyclone/>
http://www.research.att.com/projects/cyclone/ 
  <http://www.wininformant.com/Articles/Index.cfm?ArticleID=23262>
http://www.wininformant.com/Articles/Index.cfm?ArticleID=23262
 
 
Has anyone played with it?
 
 
Ioannis
 
* Ioannis Vranos
* Programming pages: http://www.noicys.f2s.com
<http://www.noicys.f2s.com/> 
* Alternative URL: http://run.to/noicys
 

How do I access assembly routines in Dev-C++ ?

If you want some good tutorials try this url

http://code.box.sk

Has a lot of good tutorials, books, articles online and also zipped for =
home.

argv is an array of C-string pointers which has stored the arguments
given in command line. argv[0] is the name of the program itself. argc
is the number of argv elements and is at least 1 (the name of the
executable). **argv is also *argv[]. The second is the more notationally
correct (because argv is an array of c-strings). So here is some ANSI
C++ 1998 code demonstrating this:
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#include <iostream>
#include <cstdio>
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int main(int argc, char *argv[])
{
     using namespace std;
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     cout<<"The total number of arguments including the filename of the
program,\nargc: "<<argc<<endl;
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     cout<<"\nAnd now the arguments only:\n";
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     for(int i=3D1; i<argc; i++)
        cout<<argv[i]<<" ";
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     cout<<endl;
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     getchar();
}

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How i executed it:
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C:\c>temp 1 test
The total number of arguments including the filename of the program,
argc: 3
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And now the arguments only:
1 test
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Hope you got it.
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Ioannis
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* Ioannis Vranos
* Programming pages: http://www.noicys.f2s.com
<http://www.noicys.f2s.com/>=20
* Alternative URL: http://run.to/noicys
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-----Original Message-----
From: dev...@li...
[mailto:dev...@li...] On Behalf Of
Joh...@ao...
Sent: Friday, November 23, 2001 3:47 AM
To: dev...@li...
Subject: [Dev-C++] (no subject)


#include <iostream.h>
#include <stdio.h>


//QUESTION: Using what feature on the compiler to enter the  'argv'?
void main(int argc, char** argv)
{
     int a =3D 10;
     int b =3D a + argc;
     cout<<" b =3D a + argc: "<<b<<endl;
     int d =3D a + int(argv);//
     cout<<" d =3D a + argv: "<< d<<endl;
    getchar();
}

//I enter the 'argc' through the input of 'Parameter' Button then hit
//the 'Exection' to run the program. But I dont know how/where to enter
the
//'argv' through the command line.....

Very appreciate your help..........=20

I have found a really good site for C++ tutorials.  It is a web edition of 
an old book called Teach Yourself C++ in 21 days.  It's link is at 
http://members.tripod.com/~firstpod/cpp21/index.htm.

Over the 21 days it will teach you structures, streams, templates, quite a 
lot.  I found it all compiles in Dev up to chapter 18, but I'm having some 
trouble with streams in 19.

Hope this helps all you newbies.

_________________________________________________________________
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp

You appear to not understand what argc and argv are. They are a standard =
part of a C/C++ program with a main() function and are linked together =
in thier use. When you execute a program and follow it with various =
parameters, i.e.:

MyProg -a 20 -b MyFile.foo

then the OS breaks the string down into each of the individual words =
(seperated by spaces (usuualy)) and uses both argc and argv together to =
make them accessible to the program. The first argc is pretty simple, it =
gives you the number of arguments passed to your program including the =
string representing the executable command. So in the above example argc =
would be 5. Note it depends on the OS as to how the command is broken =
down (AFAIK), but usualy spaces are it, possibly with commands enclosed =
in qoutes treated as one command and kept whole.

The second argv is a little more complex. I hope you are OK with =
pointers, because we are dealing with a pointer, to a pointer, to a =
string. Or if you prefer an array of pointers to strings. Basically you =
have an array of values that point to all the command strings passed. =
The OS doesn't convert numbers for you (as you seem to think) it just =
passes everything as strings. The above command would translate into:

"MyProg", "-a", "20", "-b", "MyFile.foo"

If you wanted to display the name of the program then you could use:

cout << argv[0];

or

cout << *argv;

The array version is used more often as it is easier to understand when =
seen. The fifth argument could be displayed with:

cout << argv[4];

Displaying: MyFile.foo

Using this method the OS can allow any kinds of arguments to be passed =
into a program without worrying about what is right or wrong. It leaves =
it up to you, the programmer, to detect right and wrong.

Here is a simple example (untested):

// Add.exe

#include <iostream>
#include <cstdlib>
#include <cctype>

int main(int argc, char *argv[])
{
    // make sure enough args supplied
    if(argc !=3D 3)
    {
        cout << "Usage: " << argv[0] << " A B" << endl;
        cout << "Where A and B are integers" << endl;
        exit(1);
    }

    // make sure both values are integers
    char *pch;
    // first arg
    for(pch =3D argv[1]; pch; ++pch)
    {
        if(!isdigit(*pch))
        {
            cout << "Values must be integers!" << endl;
            exit(2);
        }
    }
    // second arg
    for(pch =3D argv[2]; pch; ++pch)
    {
        if(!isdigit(*pch))
        {
            cout << "Values must be integers!" << endl;
            exit(2);
        }
    }

    // add the numbers together and output
    cout << argv[1] << " + " << argv[2] << " =3D ";
    cout << atoi(argv[1]) + atoi(argv[2]) << endl;
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    return 0; // all ok
}

Try compiling that, correct any syntax or other errors I may have made, =
and it should when executed from a dos prompt output the sum of the two =
digits supplied.

If you are a newbie then I don't expect you to understand all that I did =
in that. I'm a bit lazy and didn't want to write it in a way that was =
easier to read to someone not used to pointers etc... (I hope it works =
now).

I hope this helps, Jason.

PS: when I say strings I was refering to the C style of null terminated =
array of chars, and not the container class in C++.
  ----- Original Message -----=20
  From: Joh...@ao...=20
  To: dev...@li...=20
  Sent: Friday, November 23, 2001 1:46 AM
  Subject: [Dev-C++] (no subject)


  #include <iostream.h>
  #include <stdio.h>


  //QUESTION: Using what feature on the compiler to enter the  'argv'?
  void main(int argc, char** argv)
  {
       int a =3D 10;
       int b =3D a + argc;
       cout<<" b =3D a + argc: "<<b<<endl;
       int d =3D a + int(argv);//
       cout<<" d =3D a + argv: "<< d<<endl;
      getchar();
  }

  //I enter the 'argc' through the input of 'Parameter' Button then hit
  //the 'Exection' to run the program. But I dont know how/where to =
enter the
  //'argv' through the command line.....

  Very appreciate your help..........=20

REMOVE me PLEEEEEZ

#include <iostream.h>
#include <stdio.h>


//QUESTION: Using what feature on the compiler to enter the  'argv'?
void main(int argc, char** argv)
{
     int a = 10;
     int b = a + argc;
     cout<<" b = a + argc: "<<b<<endl;
     int d = a + int(argv);//
     cout<<" d = a + argv: "<< d<<endl;
    getchar();
}

//I enter the 'argc' through the input of 'Parameter' Button then hit
//the 'Exection' to run the program. But I dont know how/where to enter the
//'argv' through the command line.....

Very appreciate your help..........

Hi,
How can I use active X Controls in DEV C++. Is there any example program to
demonstrate bout it?.
Arvind Sidhaye

Hi,
Is there any way to read contents of the page on web site. or to ready
directory from FTP server.
Arvind Sidhaye

Hi,
I am trying to use DEV C++ 4.0. I have already build some API Routines for
Visual FoxPro 5.0 using their construction Kit. Construction Kit Contains a
header file "PRO_EXT.H". Link Library APIMSOBJ.LIB. To Compile these
routines I used VC++6.0. This works fine. But when I tried the same program
in DEV C++ 4.0 it returns many errors. Please help me.

Arvind Sidhaye