If you're trying to reproduce a rare event and getting too many false positives with your breakpoints, you can easily make them conditional! Simply specify the condition for a breakpoint and Visual Studio will automatically ignore the breakpoint when…

https://msdn.microsoft.com/en-us/library/xz7ttk5s.aspx   Optimizing Your Code Visual Studio 2015 The latest version of this topic can be found at Optimizing Your Code. By optimizing an executable, you can achieve a balance between fast execution spee…

字节填充 VC++在Debug编译方式下,new的内存用0xcd(助记词为Cleared Data)填充,防止未初始化: delete后,内存用0xdd(Dead Data)填充,防止再次被使用. 这样有利于调试内存错误.之所以选择这样的填充模式,是因为: A 大数,若被当成指针就会越界: B 奇数,指针通常指向偶数地址: C 非0,这样不会和NULL混淆. 在Release编译方式下不会用这些字节填充.…

It is possible to instruct the debugger to break when an exception occurs, before a handler is invoked. That allows you to debug your application immediately after the exception occurs. Navigating the Call Stack should allow you to figure the root ca…

It's often useful to avoid stepping into some common code like constructors or overloaded operators. Many times when you debug the code you probably step into functions you would like to step over, whether it's constructors, assignment operators or o…

Memory Values If you're using the debug heap, memory is initialized and cleared with special values. Typically MFC automatically adds something like the following to your .cpp files to enable it: #ifdef _DEBUG #define new DEBUG_NEW #undef THIS_FILE s…

今天给大家分享一个IDEA调试过程中的一个小技巧. 先来说说场景,你有没有碰到类似的情况,一个循环结构里,中间某一个情况可能会出错.比如下面的代码结果中,可能执行到第27次的时候,会出现问题. for(int i = 0; i < 100; i++) { // 业务逻辑 System.out.println(i); } 那么这个时候,你会怎么调试的呢?是不是像下面这样加个断点 然后狂点绿色小箭头,到将来出错的那一次? 其实IDEA中有个功能,可以给断点增加条件,这样就不用那么麻烦了. 操作也很简…

When you watch variables in the Watch or Quick Watch window, the values are displayed using the default pre-defined visualizers. When it comes to numbers, these are displayed according to their types (integer, float, double) and using the decimal bas…

Sometimes you'd like to watch the value of an object (on the heap) even after the symbol goes of scope. When that happens, the variable in the Watch window is disabled and cannot be inspected any more (nor updated) even if the object is still alive a…

If you expand a pointer and you only get a single item, just add ",n" to the entry in the watch window where n is the number of elements to expand. For example, if you have a foo * pFoo pointing to an array of ten elements, put pFoo,10 in your w…