Compile C/C++ program (Dev-C/C++)

what is Dev-C/C++?

Dev-C/C++, developed by Bloodshed Software, is a fully featured graphical IDE(Integrated Development Environment),which is able to create windows or console-based C/C++ programs using the MindGW compiler system. MindGW uses GCC(THE GNU g++ complier collection), which is essentially the same compiler system that is in Cygwin(the unix environment program for Windows)and most versions of Linux.There are, however differences between Cygwin and MinGW.

Let us see how can the compilation be done using Dev-C/C++:

Step 1: Configure Dev-C/C++

We need to modify one of the default settings to allow you to use the debugger with your programs.

  • Go to the “Tools” menu and select “Compiler Options”.
  • In the “Settings” tab, click on “Linker” in the left panel, and change “Generate debugging information”to “Yes”.
  • Click OK.

Step 2: Create a new Project

A “project” can be considered as a container that is used to store all the elements that are required to compile a program.

  • Go to the “File” menu and select “New”, “Project” is selected.
    Here you will also give your project a name. You can give your project any valid filename, but keep in mind that the name of your project will also be the name of your project click “OK”.
  • Dev C/C++ will now ask you where to save your project.

Step 3: Create/add source file(s)

You can add empty source files one of the two ways:

  • Go to the “File” menu and select”New Source File” Or
  • Go to the “Project” menu and select “New File”.
    Note that Dev-C/C++ will not ask for a filename for any new source file until you attempt to:
    1.Compile
    2.Save the project
    3.Save the Source File
    4.Exit Dev-C/C++

You can add pre-existing source files one of two ways:

  • Go to the “Project” menu and select “Add to Project” OR
  • Right click on the project name in the left hand panel and select “Add to Project”.

Step 4 : Compile

Once you have enetered all of your source code, you are ready to compile.
Go to the “Execute” menu and select “Compile” (or just press CTRL+F9).
It is likely that you will get some kind of compiler or linker error the first time you attempt to compile a project. Syntax errors will be displayed in the “Compiler” tab at the bottom of the screen. You can double-click on any error to take you to the place in the source code where it occurred. The “Linker” tab will flash if there are any linker errors. Linker errors are generally the result of syntax errors not allowing one of the files to compile.

Once your project successfully compiles, the “Compile Progress” dialog box will have a status of “Done”. At this point, you may click “Close”.

Step 5: Execute.

You can now run your program.

Go to the “Execute” menu, choose “Run”.
Note: to pass command-line parameters to your program, go to the “Execute” menu, choose “Parameters” and type in any paramaters you wish to pass.
Disappearing windows
If you execute your program (with or without parameters), you may notice something peculiar; a console window will pop up, flash some text and disappear. The problem is that, if directly executed, console program windows close after the program exits. You can solve this problem one of two ways:
Method 1 – Adding one library call:
On the line before the main’s return enter:
system(“Pause”);
Method 2 – Scaffolding:
Add the following code before any return statement in main() or any exit() or abort() statement (in any function):
/* Scaffolding code for testing purposes /
cin.ignore(256, ‘\n’);
cout << “Press ENTER to continue…” << endl;
cin.get();
/
 End Scaffolding */
This will give you a chance to view any output before the program terminates and the window closes.
Method 3 – Command-prompt:
Alternatively, instead of using Dev-C++ to invoke your program, you can just open an MS-DOS Prompt, go to the directory where your program was compiled (i.e. where you saved the project) and enter the program name (along with any parameters). The command-prompt window will not close when the program terminates.
For what it’s worth, I use the command-line method.

Step 6: Debug

When things aren’t happening the way you planned, a source-level debugger can be a great tool in determining what really is going on. Dev-C++’s basic debugger functions are controlled via the “Debug” tab at the bottom of the screen; more advanced functions are available in the “Debug” menu.

Using the debugger:
The various features of the debugger are pretty obvious. Click the “Run to cursor” icon to run your program and pause at the current source code cursor location; Click “Next Step” to step through the code; Click “Add Watch” to monitor variables.
Setting breakpoints is as easy as clicking in the black space next to the line in the source code.
See the Dev-C++ help topic “Debugging Your Program”.

Before starting the abcd of C language, you need to learn how to write, compile and run the first c program.

To write the first c program, open the C console and write the following code:


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#include &lt;stdio.h&gt;  
#include &lt;conio.h&gt;  
void main()
{  
printf("Hello C Language");  
  getch();  
}

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#include <stdio.h&gt : includes the standard input output library functions. The printf() function is defined in stdio.h .
#include <conio.h> includes the console input output library functions.
The getch() function is defined in conio.h file.

void main(): The main() function is the entry point of every program in c language. The void keyword specifies that it returns no value.

printf(): The printf() function is used to print data on the console.

getch() : The getch() function asks for a single character.

Compilation and Execution:

How to compile and run the c program

There are 2 ways to compile and run the c program, by menu and by shortcut.

By menu

Now click on the compile menu then compile sub menu to compile the c program.

Then click on the run menu then run sub menu to run the c program.

By shortcut

Or, press ctrl+f9 keys compile and run the program directly.

You will see the following output on user screen.
You can view the user screen any time by pressing the alt+f5 keys.

Now press Esc to return to the console.
Hope you find the article useful 🙂

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