Hi, I believe those that followed my previous questions knows that I'm using Dev C++ as my IDE and the default compiler that comes with it, TDM GCC 4.9.2. However, this does not support the later version of C++.
I saw on this link: https://sourceforge.net/p/orwelldevcpp/forums/general/thread/1e29f28c/
This person downloads Dev C++ without compiler and later installs a different version of compiler, and he successfully uses it. I followed the steps and tried to install MingW GCC 9.2.0, and Dev C++ does indeed show MingW GCC 9.2.0 as its compiler, but when I tried to use a function from later version of C++ (iota and shuffle), I got an error telling I'm required to add -std=C++11 flag, however mentioning it's currently experimental. Is the problem caused by Dev C++ not being able to support a later version of compiler, or is it me that did the installation wrongly?
So I was wondering if anyone tried to install a later version of compiler for Dev C++, and if yes, how? Thanks for taking your time!
I saw on this link: https://sourceforge.net/p/orwelldevcpp/forums/general/thread/1e29f28c/
This person downloads Dev C++ without compiler and later installs a different version of compiler, and he successfully uses it. I followed the steps and tried to install MingW GCC 9.2.0, and Dev C++ does indeed show MingW GCC 9.2.0 as its compiler, but when I tried to use a function from later version of C++ (iota and shuffle), I got an error telling I'm required to add -std=C++11 flag, however mentioning it's currently experimental. Is the problem caused by Dev C++ not being able to support a later version of compiler, or is it me that did the installation wrongly?
So I was wondering if anyone tried to install a later version of compiler for Dev C++, and if yes, how? Thanks for taking your time!
Dev-C is Free Software distributed under the GNU General Public License. This means you are free to distribute and modify Dev-C, unlike most Windows software! Be sure the read the license. C/C for Visual Studio Code (Preview) C/C support for Visual Studio Code is provided by a Microsoft C/C extension to enable cross-platform C and C development on Windows, Linux, and macOS. Getting started C/C compiler and debugger. The C/C extension does not include a C.
In this tutorial, you configure Visual Studio Code to use the GCC C++ compiler (g++) and GDB debugger from Mingw-w64 to create programs that run on Windows.
After configuring VS Code, you will compile and debug a simple Hello World program in VS Code. This tutorial does not teach you about GCC or Mingw-w64 or the C++ language. For those subjects, there are many good resources available on the Web.
If you have any problems, feel free to file an issue for this tutorial in the VS Code documentation repository.
Prerequisites
To successfully complete this tutorial, you must do the following steps:
- Install Visual Studio Code.
- Install the C/C++ extension for VS Code. You can install the C/C++ extension by searching for 'c++' in the Extensions view (⇧⌘X (Windows, Linux Ctrl+Shift+X)).
- You will install Mingw-w64 via the SourceForge website. Click Mingw-w64 to begin downloading the compressed archive file. Extract the tools from the compressed file to a folder that has no spaces in its path. In this tutorial, we assume it is installed under
C:mingw-w64
. - Add the path to your Mingw-w64
bin
folder to the Windows PATH environment variable.- In the Windows search bar, type 'settings' to open your Windows Settings.
- Search for Edit environment variables for your account.
- Choose the
Path
variable and then select Edit. - Select New and add the Mingw-w64 path to the system path. The exact path depends on which version of Mingw-w64 you have installed and where you installed it. Here is an example:
c:mingw-w64x86_64-8.1.0-win32-seh-rt_v6-rev0mingw64bin
. - Select OK to save the
Path
update. You will need to reopen any console windows for the new PATH location to be available.
Check your MinGW installation
To check that your Mingw-w64 tools are correctly installed and available, open a new Command Prompt and type:
If you don't see the expected output or
g++
or gdb
is not a recognized command, check your installation (Windows Control Panel > Programs) and make sure your PATH entry matches the Mingw-w64 location.Create Hello World
From a Windows command prompt, create an empty folder called
projects
where you can place all your VS Code projects. Then create a sub-folder called helloworld
, navigate into it, and open VS Code in that folder by entering the following commands:The 'code .' command opens VS Code in the current working folder, which becomes your 'workspace'. As you go through the tutorial, you will see three files created in a
.vscode
folder in the workspace:tasks.json
(build instructions)launch.json
(debugger settings)c_cpp_properties.json
(compiler path and IntelliSense settings)
Add a source code file
In the File Explorer title bar, select the New File button and name the file
helloworld.cpp
.Add hello world source code
Now paste in this source code:
Now press ⌘S (Windows, Linux Ctrl+S) to save the file. Notice how the file you just added appears in the File Explorer view (⇧⌘E (Windows, Linux Ctrl+Shift+E)) in the side bar of VS Code:
You can also enable Auto Save to automatically save your file changes, by checking Auto Save in the main File menu.
The Activity Bar on the far left lets you open different views such as Search, Source Control, and Run. You'll look at the Run view later in this tutorial. You can find out more about the other views in the VS Code User Interface documentation.
Note: When you save or open a C++ file, you may see a notification from the C/C++ extension about the availability of an Insiders version, which lets you test new features and fixes. You can ignore this notification by selecting the
X
(Clear Notification).Explore IntelliSense
In your new
helloworld.cpp
file, hover over vector
or string
to see type information. After the declaration of the msg
variable, start typing msg.
as you would when calling a member function. You should immediately see a completion list that shows all the member functions, and a window that shows the type information for the msg
object:You can press the Tab key to insert the selected member; then, when you add the opening parenthesis, you will see information about any arguments that the function requires.
Build helloworld.cpp
Next, you will create a
tasks.json
file to tell VS Code how to build (compile) the program. This task will invoke the g++ compiler to create an executable file based on the source code.From the main menu, choose Terminal > Configure Default Build Task. In the dropdown, which will display a tasks dropdown listing various predefined build tasks for C++ compilers. Choose g++.exe build active file, which will build the file that is currently displayed (active) in the editor.
This will create a
tasks.json
file in a .vscode
folder and open it in the editor.Your new
tasks.json
file should look similar to the JSON below:The
command
setting specifies the program to run; in this case that is g++. The args
array specifies the command-line arguments that will be passed to g++. These arguments must be specified in the order expected by the compiler. This task tells g++ to take the active file (${file}
), compile it, and create an executable file in the current directory (${fileDirname}
) with the same name as the active file but with the .exe
extension (${fileBasenameNoExtension}.exe
), resulting in helloworld.exe
for our example.Note: You can learn more about
task.json
variables in the variables reference.The
label
value is what you will see in the tasks list; you can name this whatever you like.The
'isDefault': true
value in the group
object specifies that this task will be run when you press ⇧⌘B (Windows, Linux Ctrl+Shift+B). This property is for convenience only; if you set it to false, you can still run it from the Terminal menu with Tasks: Run Build Task.Running the build
- Go back to
helloworld.cpp
. Your task builds the active file and you want to buildhelloworld.cpp
. - To run the build task defined in
tasks.json
, press ⇧⌘B (Windows, Linux Ctrl+Shift+B) or from the Terminal main menu choose Tasks: Run Build Task. - When the task starts, you should see the Integrated Terminal panel appear below the source code editor. After the task completes, the terminal shows output from the compiler that indicates whether the build succeeded or failed. For a successful g++ build, the output looks something like this:This generally includes Mac models that where shipped with an optical drive. Windows 10 needs to be installed to boot using the legacy BIOS method. Also, when a Windows iso file is available and the Mac has a working optical drive, but no blank DVD can be obtained. Boot camp assistant mac switch back.
- Create a new terminal using the + button and you'll have a new terminal (running PowerShell) with the
helloworld
folder as the working directory. Rundir
and you should now see the executablehelloworld.exe
. - You can run
helloworld
in the terminal by typing.helloworld.exe
.
Note: You might need to press Enter a couple of times initially to see the PowerShell prompt in the terminal. This issue should be fixed in a future release of Windows.
Modifying tasks.json
Mingw C++ Compiler For Windows
You can modify your
tasks.json
to build multiple C++ files by using an argument like '${workspaceFolder}*.cpp'
instead of ${file}
. This will build all .cpp
files in your current folder. You can also modify the output filename by replacing '${fileDirname}${fileBasenameNoExtension}.exe'
with a hard-coded filename (for example '${workspaceFolder}myProgram.exe'
).Debug helloworld.cpp
Next, you'll create a
launch.json
file to configure VS Code to launch the GDB debugger when you press F5 to debug the program. From the main menu, choose Run > Add Configuration.. and then choose C++ (GDB/LLDB).You'll then see a dropdown for various predefined debugging configurations. Choose g++.exe build and debug active file.
VS Code creates a
launch.json
file, opens it in the editor, and builds and runs 'helloworld'.The
program
setting specifies the program you want to debug. Here it is set to the active file folder ${fileDirname}
and active filename with the .exe
extension ${fileBasenameNoExtension}.exe
, which if helloworld.cpp
is the active file will be helloworld.exe
.By default, the C++ extension won't add any breakpoints to your source code and the
stopAtEntry
value is set to false
. Change the stopAtEntry
value to true
to cause the debugger to stop on the main
method when you start debugging.Start a debugging session
- Go back to
helloworld.cpp
so that it is the active file. - Press F5 or from the main menu choose Run > Start Debugging. Before you start stepping through the source code, let's take a moment to notice several changes in the user interface:
- The Integrated Terminal appears at the bottom of the source code editor. In the Debug Output tab, you see output that indicates the debugger is up and running.
- The editor highlights the first statement in the
main
method. This is a breakpoint that the C++ extension automatically sets for you: - The Run view on the left shows debugging information. You'll see an example later in the tutorial.
- At the top of the code editor, a debugging control panel appears. You can move this around the screen by grabbing the dots on the left side.
Step through the code
Now you're ready to start stepping through the code.
- Click or press the Step over icon in the debugging control panel.This will advance program execution to the first line of the for loop, and skip over all the internal function calls within the
vector
andstring
classes that are invoked when themsg
variable is created and initialized. Notice the change in the Variables window on the left.In this case, the errors are expected because, although the variable names for the loop are now visible to the debugger, the statement has not executed yet, so there is nothing to read at this point. The contents ofmsg
are visible, however, because that statement has completed. - Press Step over again to advance to the next statement in this program (skipping over all the internal code that is executed to initialize the loop). Now, the Variables window shows information about the loop variables.
- Press Step over again to execute the
cout
statement. (Note that as of the March 2019 release, the C++ extension does not print any output to the Debug Console until the loop exits.) - If you like, you can keep pressing Step over until all the words in the vector have been printed to the console. But if you are curious, try pressing the Step Into button to step through source code in the C++ standard library!To return to your own code, one way is to keep pressing Step over. Another way is to set a breakpoint in your code by switching to the
helloworld.cpp
tab in the code editor, putting the insertion point somewhere on thecout
statement inside the loop, and pressing F9. A red dot appears in the gutter on the left to indicate that a breakpoint has been set on this line.Then press F5 to start execution from the current line in the standard library header. Execution will break oncout
. If you like, you can press F9 again to toggle off the breakpoint.When the loop has completed, you can see the output in the Integrated Terminal, along with some other diagnostic information that is output by GDB.
Dev C++ Bloodshed
Set a watch
Sometimes you might want to keep track of the value of a variable as your program executes. You can do this by setting a watch on the variable.
- Place the insertion point inside the loop. In the Watch window, click the plus sign and in the text box, type
word
, which is the name of the loop variable. Now view the Watch window as you step through the loop. - Add another watch by adding this statement before the loop:
int i = 0;
. Then, inside the loop, add this statement:++i;
. Now add a watch fori
as you did in the previous step.There are AU, AAX and RTAS to name but a few, though we'll focus on VST and AU in this article since they're by far the most popular standards.In addition, some plugins are written for 32-bit systems, while others are coded for 64-bit systems And some for both! Free reason plugins. Your own operating system and host program (by which we mean your DAW) will determine which format you'll want to use - we'll come back to the specifics a little later, but see the handy table below for a guide to which DAWs run on PC and Mac, whether they support AU/VST2/ VST3, and whether they have a 'bit bridge' for running 32-bit plugins in their 64-bit version.Special deliveryMost plugins are available as downloads, and this is now the delivery system of choice. - To quickly view the value of any variable while execution is paused on a breakpoint, you can hover over it with the mouse pointer.
C/C++ configurations
If you want more control over the C/C++ extension, you can create a
c_cpp_properties.json
file, which will allow you to change settings such as the path to the compiler, include paths, C++ standard (default is C++17), and more.You can view the C/C++ configuration UI by running the command C/C++: Edit Configurations (UI) from the Command Palette (⇧⌘P (Windows, Linux Ctrl+Shift+P)).
This opens the C/C++ Configurations page. When you make changes here, VS Code writes them to a file called
c_cpp_properties.json
in the .vscode
folder.Dev C++ Mingw
Visual Studio Code places these settings in
.vscodec_cpp_properties.json
. If you open that file directly, it should look something like this:You only need to add to the Include path array setting if your program includes header files that are not in your workspace or in the standard library path.
Compiler path
The
compilerPath
setting is an important setting in your configuration. The extension uses it to infer the path to the C++ standard library header files. When the extension knows where to find those files, it can provide useful features like smart completions and Go to Definition navigation.The C/C++ extension attempts to populate
compilerPath
with the default compiler location based on what it finds on your system. The extension looks in several common compiler locations.The
compilerPath
search order is:- First check for the Microsoft Visual C++ compiler
- Then look for g++ on Windows Subsystem for Linux (WSL)
- Then g++ for Mingw-w64.
If you have Visual Studio or WSL installed, you may need to change
compilerPath
to match the preferred compiler for your project. For example, if you installed Mingw-w64 version 8.1.0 under C:mingw-w64, using the Win32 threads and SEH exception handling options, the path would look like this: C:mingw-w64x86_64-8.1.0-win32-seh-rt_v6-rev0mingw64bing++.exe
.Next steps
- Explore the VS Code User Guide.
- Review the Overview of the C++ extension.
- Create a new workspace, copy your
.vscode
JSON files to it, adjust the necessary settings for the new workspace path, program name, and so on, and start coding!