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Using ideone.com

Ideone is a really simple online environment that allows you to create code in C++. The most important advantage of it is simplicity.

Creating an account (optional)​

To be able to view your codes and customize the editor, you need to have a free account on their site. You can do this by following this link: https://ideone.com/account/register

Then complete the information below:

Creating an ideone account

Using the editor​

Once you have entered the website, you will be transferred to the code editing mode:

Code editor

The main view is made up of two parts:

PartContents
Topcode editor ✏
Bottomoptions ⚒

Before running any code, you have to choose c++ languge at the bottom. You can choose from:

NameCompiler
C++gcc 8.3
C++14gcc 8.3 (suggested)
C++ 4.3.2gcc 4.3.2
C++14clang 8.0

You can also choose if your code is visible for everyone (globe icon), secret (glasses icon) or private (padlock icon, only for signed users).

Running the code​

▶ At the right bottom corner you will find the Run button that runs the code.

Run button

Before the code can be executed, its code must be compiled. This means that at the beginning you will see a compilation statement.

  • ✔ If the code is correct, the result will be shown in stdout section.
  • 🔴 If the code contains errors, it will not be compiled or executed.
Compilation and running a valid code
🟣 Result
danger

Sometimes when trying to run the code, ideone refreshes the page without executing, resulting in the loss of code. It is recommended to copy the code frequently or use other tooling.

Editing the source code​

This editor supports only syntax highlighting.

Code editor view

Keyboard shortcuts​

Ideone has only one keyboard shortcut:

ShortcutDescription
Ctrl + EnterRuns the code

Customizing editor​

If you are logged in you can go to customization by clicking my account in top right corner and then selecting editor.

Editor settings view

Here you can change all important settings including theme.

Viewing your codes​

If you are logged in you can view all your codes by clicking my codes in the menu. Then you will see something like this:

Your codes view

Here you can manage all your codes.

Using ideone.com

Ideone is a really simple online environment that allows you to create code in C++. The most important advantage of it is simplicity.

Creating an account (optional)​

To be able to view your codes and customize the editor, you need to have a free account on their site. You can do this by following this link: https://ideone.com/account/register

Then complete the information below:

Creating an ideone account

Using the editor​

Once you have entered the website, you will be transferred to the code editing mode:

Code editor

The main view is made up of two parts:

PartContents
Topcode editor ✏
Bottomoptions ⚒

Before running any code, you have to choose c++ languge at the bottom. You can choose from:

NameCompiler
C++gcc 8.3
C++14gcc 8.3 (suggested)
C++ 4.3.2gcc 4.3.2
C++14clang 8.0

You can also choose if your code is visible for everyone (globe icon), secret (glasses icon) or private (padlock icon, only for signed users).

Running the code​

▶ At the right bottom corner you will find the Run button that runs the code.

Run button

Before the code can be executed, its code must be compiled. This means that at the beginning you will see a compilation statement.

  • ✔ If the code is correct, the result will be shown in stdout section.
  • 🔴 If the code contains errors, it will not be compiled or executed.
Compilation and running a valid code
🟣 Result
danger

Sometimes when trying to run the code, ideone refreshes the page without executing, resulting in the loss of code. It is recommended to copy the code frequently or use other tooling.

Editing the source code​

This editor supports only syntax highlighting.

Code editor view

Keyboard shortcuts​

Ideone has only one keyboard shortcut:

ShortcutDescription
Ctrl + EnterRuns the code

Customizing editor​

If you are logged in you can go to customization by clicking my account in top right corner and then selecting editor.

Editor settings view

Here you can change all important settings including theme.

Viewing your codes​

If you are logged in you can view all your codes by clicking my codes in the menu. Then you will see something like this:

Your codes view

Here you can manage all your codes.