Modern applications run on many threads, so you can pick one from a drop-down list:ĭirectly below that is the stack frame, i.e., a list of the nested functions that were invoked as you were going through the code. First of all, on the left, it lets you actually pick the threads that you want to inspect. To the left of the tabs is a vertical column of buttons that contains higher-level controls for debugging, including buttons for resuming execution or stopping the application, an ability do display breakpoint settings, and other miscellaneous controls. There’s also a button that lets you Evaluate Arbitrary Expression ( Alt+F8) - we’ll talk about this later.
#CLION TUTORIAL CODE#
Debugger - this actually shows the various debugging options that we are going to discuss in just a moment.There’s a lot going on here, so let’s start by discussing the two primary tabs (the top-level tabs, so to speak). So, what exactly happens when a debugger hits a breakpoint? Apart from the execution pausing, you get to see the following Debug tool window: The set of options related to exception breakpoints is similar to line breakpoints: you can specify whether you want to suspend execution, log message to the console, remove the exception once it’s hit, or only enable it when some other breakpoint is hit first: Leave enabled leaves the breakpoint forever enabled and thus no longer dependant on any other breakpoint being hit first.īut that’s not all! In addition to ordinary breakpoints, CLion also supports exception breakpoints which, as the name suggests, trigger when the program throws an exception.Disable again disables the breakpoint after it is hit until the dependant breakpoint is hit again (in which case it is re-enabled).This is useful in situations where, for example, you only want to investigate a point in code when it is called from a specific function of your choosing. Disabled until selected breakpoint is hit does exactly what it says: it disables the current breakpoint until some other breakpoint is encountered.This can be useful in cases where you only want to log the first occurence of a particular point being hit. Remove once hit ensures that after you hit the breakpoint once, the breakpoint is removed.Log evaluated expression lets you log the result of specific evaluation.Log message to console writes to the console information about the breakpoint being hit.Leaving this out ensures that the breakpoint is always hit.
#CLION TUTORIAL FULL#
With this pop-up window open, you can press Ctrl+Shift+F8/ ⇧⌘F8 to open up the full breakpoint editing window:
You even get code completion right in the editor! To edit the condition, you can right-click the breakpoint and type in the condition in the window that pops up. Now, when you run the program in debug mode (by choosing the menu item Run|Debug or pressing Shift+F9 (Windows/Linux)/ ^D (OS X)), program execution will stop at the line you selected.Ī conditional breakpoint will only stop at a particular line if some condition holds. The line with the breakpoint will be highlighted, and the breakpoint itself will appear as a red circle: To make one, simply press Ctrl+F8 (Windows/Linux)/ ⌘F8 (OS X) or, alternatively, click the mouse in the grey gutter area to the left of the code. Breakpoints are used for exactly this purpose.Ī simple breakpoint stops the execution of a program at a particular line. In order to inspect the state of the program at a particular point, you need to pause the program. Please, find more details in our blog post by the link.
#CLION TUTORIAL HOW TO#
Learn how to attach for debug to local process started not from the CLion (from CLion v2016.1).Ĭheck major changes (since v2016.2) in GDB and LLDB drivers and addresses such problems as: Here’s a look at some of the core debugging features that are supported. Debugging involves being able to pause program execution at an arbitrary point and having the ability to inspect the content of variables.ĬLion supports the debugging experience using the GDB debugger (and LLDB on OS X since version 1.1 and on Linux since version 2016.2). One of the key advantages to having an IDE instead of a plain-text editor is the debugging experience.
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