![]() ![]() We contribute source code and manage issues in this repository. Both the files will be opened in the main panel, side by side in inline view mode which is comfortable for comparing the differences. The Code - OSS repository is where we (Microsoft) develop the open source editor upon which we build the Visual Studio Code product.Then right-click the second file and choose Compare with Selected.From the left Explorer panel, right-click the first file and choose Select for Compare from the right-click menu.Here are the simple steps to compare the contents of two code files in VS Code. So naturally VS code is my go-to tool for file comparison. I am using it for minor project development and even as a simple text editor. For me, VS Code comes in handy as it is cross platform and I am using it on both macOS and Windows. Even though there are several tools like Beyond Compare, Araxis Merge, etc… which have lot of comparison and merging features, I use Visual Studio Code for quick file comparison during development or otherwise. ![]() Or if (num1 STL library.Lately I got questions asking for a quick lightweight tool to compare code files. Hence, expressions of the type: if (num1=num2). If two doubles differ by less than numeric_limits::epsilon(), they are seen as the same number for the machine. The issue would show up when I was dealing with numbers that were slightly different, but numerically indistinguishable for the machine. However, I had a similar problem with a program doing lots of floating-point arithmetics (double precision numbers). Well, it is difficult to say without knowing a bit more about your code. That way, you can make sure you're properly initializing it yourself before using it, otherwise your results will be (hopefully) crazy every time you run it - even in debug mode with the debug heap! One great debugging tip that helped out: write a custom malloc that immediately fills memory with completely random data. Chaos theory in action! Thanks for the guidance. Unfortunately, the adjustment was so subtle as to almost be unnoticeable, and the memory in question was properly reset after the first "frame" of processing, but the initial conditions were already slightly different and the damage had been done. when run from the command line or with Ctrl-F5) the values were more random and would sometimes cause tiny deviations in the behaviour of the program. The debug heap would (I assume) fill the array with some repeatable value, whereas when the debugger wasn't attached (i.e. They had allocated memory with a malloc and had not initialized the memory to 0. The problem was that deep in the bowels of our code, somebody was accessing parts of a large array before they were initialized. SOLUTION: As pointed out in the accepted answer, the debug heap was the issue. Does this point to a likely culprit? What are the differences between running an executable with debugging and without? I know that the working directory can possibly be different, but I'm manually adjusting that to make sure that the working directory is identical.īased on these results, it looks like running "with Debugging" (even in a Release build) somehow fixes the problem. Run from Visual Studio without Debugging (Ctrl-F5): Non-repeatable output. ![]()
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