Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. This article introduces the features of the Visual Studio debugger in a step-by-step walkthrough. If you want a higher-level view of the debugger features, see First look at the debugger. When you debug your app , it usually means that you are running your application with the debugger attached. When you do this, the debugger provides many ways to see what your code is doing while it runs.
You can step through your code and look at the values stored in variables, you can set watches on variables to see when values change, you can examine the execution path of your code, see whether a branch of code is running, and so on.
If this is the first time that you've tried to debug code, you may want to read Debugging for absolute beginners before going through this article. F and JavaScript do not support the Autos window. If you haven't already installed Visual Studio, go to the Visual Studio downloads page to install it for free. If you haven't already installed Visual Studio , go to the Visual Studio downloads page to install it for free.
The Visual Studio Installer launches. The project type comes with all the template files you'll need, before you've even added anything!
In the middle pane, choose Windows Console Application. Then name the project get-started-debugging. Choose the. NET Core cross-platform development workload, and then choose Modify. On the Create a new project window, enter or type console in the search box.
After you apply the language and platform filters, choose the Console App template, and then choose Next. If you do not see the Console App template, you can install it from the Create a new project window. In the Not finding what you're looking for?
In the Configure your new project window, type or enter get-started-debugging in the Project name box. Then, choose Create. In get-started-debugging. F5 starts the app with the debugger attached to the app process, but right now we haven't done anything special to examine the code. So the app just loads and you see the console output. In this tutorial, we'll take a closer look at this app using the debugger and get a look at the debugger features.
In the for loop of the main function, set a breakpoint by clicking the left margin of the following line of code:. Run the program and store the data entered in a doc file which named by student number. Tip: use structure.
You have to print output to a file using fprintf. In fopen statement remove the folder name. Automatically output file will get stored in your current code directory. I think you mean that the program seems to stop after the input not output of the year value. This will cause scanf to read and ignore any trailing space. But to know when the spaces ends, there must be some non-space input, which you do not input I guess. The solution is simple: Never use trailing space characters and newline is a space character in a scanf format string:.
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NET Core cross-platform development workload, then choose Modify. If you already have Visual Studio but the. In the Visual Studio Installer, choose the. NET desktop development workload, then choose Modify. First, you'll create a. NET Core console application project. The project type comes with all the template files you'll need, before you've even added anything!
In the New Project dialog box in the left pane, expand C , and then choose. NET Core. In the middle pane, choose Console App. Then name the project get-started-debugging.
If you don't see the Console App. NET Core cross-platform development workload, and then choose Modify. On the Create a new project window, enter or type console in the search box. Next, choose C from the Language list, and then choose Windows from the Platform list.
After you apply the language and platform filters, choose the Console Application template for. NET Core, and then choose Next. If you do not see the Console App template, you can install it from the Create a new project window. In the Not finding what you're looking for? Then, in the Visual Studio Installer, choose the. Then, choose Next. Choose either the recommended target framework.
NET Core 3. NET 5. After you apply the language and platform filters, choose the Console Application template, and then choose Next. If you don't see the Console Application template, you can install it from the Create a new project window. In the Additional information window, ensure that. NET 6. F5 starts the app with the debugger attached to the app process, but right now we haven't done anything special to examine the code. So the app just loads and you'll see this console output.
In this tutorial, we'll take a closer look at this app using the debugger and get a look at the debugger features. Mostly, we use keyboard shortcuts here, because it's a fast way to execute debugger commands. Equivalent commands, such as toolbar or menu commands, are also noted.
F5 starts the app with the debugger attached to the app process. Since we haven't done anything special to examine the code, the app runs to completion and you see the console output.
In the for loop of the Main function, set a breakpoint by clicking the left margin of the following line of code:. A red circle appears where you set the breakpoint. Breakpoints are one of the most basic and essential features of reliable debugging. A breakpoint indicates where Visual Studio should suspend your running code so you can take a look at the values of variables, or the behavior of memory, or whether or not a branch of code is getting run.
Press F5 or the Start Debugging button , the app starts, and the debugger runs to the line of code where you set the breakpoint. The yellow arrow represents the statement on which the debugger paused, which also suspends app execution at the same point this statement has not yet executed. If the app is not yet running, F5 starts the debugger and stops at the first breakpoint.
Otherwise, F5 continues running the app to the next breakpoint. Breakpoints are a useful feature when you know the line of code or the section of code that you want to examine in detail. For information on the different types of breakpoints you can set, such as conditional breakpoints, see Using breakpoints. Breakpoints are an essential feature of reliable debugging. You can set breakpoints where you want Visual Studio to pause your running code so you can look at the values of variables or the behavior of memory, or know whether or not a branch of code is getting run.
The app starts and the debugger runs to the line of code where you set the breakpoint. The yellow arrow points to the statement on which the debugger paused. App execution is paused at the same point, with the statement not yet executed. When the app isn't running, F5 will start the debugger, which will run the app until it reaches the first breakpoint. If the app is paused at a breakpoint, then F5 will continue running the app until it reaches the next breakpoint.
Breakpoints are a useful feature when you know the line or section of code that you want to examine in detail. For more about the different types of breakpoints you can set, such as conditional breakpoints, see Using breakpoints. Mostly, we use the keyboard shortcuts here, because it's a good way to get fast at executing your app in the debugger equivalent commands such as menu commands are shown in parentheses.
Features that allow you to inspect variables are one of the most useful features of the debugger, and there are different ways to do it. Then go to Project Options - Compiler - Linker and set Generate debugging information to 'yes', and make sure you are not using any optimization options they're not good for debug mode. Also check the Parameters tab, make sure you don't have any optimization options like -O2 or -O3, but -O0 is ok because it means no optimization or strip option -s.
After that, do a full rebuild Ctrl-F11 , then set breakpoint s where you want the debugger to stop otherwise it will just run the program. To set a breakpoint on a line, just click on the gutter the gray band on the left , or press Ctrl-F5. Before starting the abcd of C language, you need to learn how to write, compile and run the first c program.
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