Dev C++

Hello,

Anyone here experience with Dev c++ ? Just installed version 4.9.9.2 with Windows XP operating system service pack 3 . I installed it in the C drive. It seems that the program is compling without any error but not running. A windows just came for a second and then disappeared and i wont be able to see my results. Any solution for that? I tried to run this program and MS visual studio it runs well.

regards-
lemon

Code:

#include <iostream>
using namespace std;

class Ratio
{ public:
    void assign(int, int);
    double convert();
    void invert();
    void print();
  private:
    int num, den;
};

int main()
{ Ratio x;
  x.assign(22,7);
  cout << "x = ";
  x.print();
  cout << " = " << x.convert() << endl;
  x.invert();
  cout << "1/x = ";  x.print();
  cout << endl;
}

void Ratio::assign(int numerator, int denominator)
{ num = numerator;
  den = denominator;
}

double Ratio::convert()
{ return double(num)/den;
}

void Ratio::invert()
{ int temp = num;
  num = den;
  den = temp;
}

void Ratio::print()
{ cout << num << '/' << den;
}

Originally Posted by chaklader

It seems that the program is compling without any error but not running. A windows just came for a second and then disappeared and i wont be able to see my results. Any solution for that?

Read the FAQ on How do I stop my Windows Console from disappearing everytime I run my program?

you also need a different IDE. Dev-C++ hasn't been updated since 2004, and comes with a compiler even older than that (2003, I think). Eclipse, NetBeans, Visual C++ Express, and Code::Blocks are all MUCH better options.

I installed Visual C++ Express but still have the same problem. Anyone could explain me how to compile and run Dev c++from cmd ?
I installed in C:\Dev-Cpp and my files are in D:\Book's\Schaum's Programming with C++\Source code\Chapter 8_Classesin the folder.

Say, a file name is Ex1001.cpp. How to run it from cmd ? I need it to know as it will be used in school.


thanks in advance for your help.

Open up an cmd prompt window using cmd.exe
change the current directory correct folder
type the command to run your executable file

[WIN] + R
type "cmd.exe" in run box.


example below

Code:

cd /d d:\projectfolder
Ex1001

So, now the .cpp is opened with this command -

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\C A Arefe>D:

D:\>cd D:\Book's\Schaum's Programming with C++\Source code\Chapter 8_Classes

D:\Book's\Schaum's Programming with C++\Source code\Chapter 8_Classes>Ex1001.cpp


D:\Book's\Schaum's Programming with C++\Source code\Chapter 8_Classes>

How to compile and run it from cmd ?

[STRIKE]with Visual C++, i don't know, so google it[/STRIKE]. If you have Code::Blocks (which I think is the better choice), you'd be using MinGW so...

g++ Ex1001.cpp -o Ex1001.exe

I got curious.

cl.exe /EHsc Ex1001.cpp

Thanks for your post. But, still it is not working. The cmd now is like:

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\C A Arefe>D:

D:\>cd D:\Book's\Schaum's Programming with C++\Source code\Chapter 8_Classes

D:\Book's\Schaum's Programming with C++\Source code\Chapter 8_Classes>g++ Ex1001
.cpp -o Ex1001.exe

D:\Book's\Schaum's Programming with C++\Source code\Chapter 8_Classes>


No output after putting your code. I also set the PATH using this webpage: C++: howto compile with Dev-C++

So, the PATH is now: C:\Program Files\Microsoft Visual Studio\Common\Tools\WinNT;C:\Program Files\Microsoft Visual Studio\Common\MSDev98\Bin;C:\Program Files\Microsoft Visual Studio\Common\Tools;C:\Program Files\Microsoft Visual Studio\VC98\bin;C:\Dev-Cpp\bin

it is because MS Visual studio was installed before. The code of the file I'm trying to execute is:

Code:

//  Programming with C++, Second Edition, by John R. Hubbard
//  Copyright McGraw-Hill, 2000
//  Example 10.1 on page 233
//  A Ratio class

#include <iostream>
using namespace std;

class Ratio
{ public:
    void assign(int, int);
    double convert();
    void invert();
    void print();
  private:
    int num, den;
};

int main()
{ Ratio x;
  x.assign(22,7);
  cout << "x = ";
  x.print();
  cout << " = " << x.convert() << endl;
  x.invert();
  cout << "1/x = ";  x.print();
  cout << endl;
}

void Ratio::assign(int numerator, int denominator)
{ num = numerator;
  den = denominator;
}

double Ratio::convert()
{ return double(num)/den;
}

void Ratio::invert()
{ int temp = num;
  num = den;
  den = temp;
}

void Ratio::print()
{ cout << num << '/' << den;
}

I deeply appreciate any help from you.

At the end of the main function before return 0; type system("pause");

Thanks . Now, it is okey.

Last thing, anyone able to help me why I can be able to run the program from command window ? I got no output there.

I got the same in cmd :

C:\Documents and Settings\C A Arefe>D:

D:\>cd D:\Book's\Schaum's Programming with C++\Source code\Chapter 8_Classes

D:\Book's\Schaum's Programming with C++\Source code\Chapter 8_Classes>g++ Ex1001
.cpp -o Ex1001.exe

D:\Book's\Schaum's Programming with C++\Source code\Chapter 8_Classes>

I already installed visual C++ express 2010

After compiling, type Ex1001.exe and prepare to be amazed at how far technology has come.

I truly realized just now. Thanks