What is the stem of a perm?

Hot, hot, hot, hot, hot, hot, hot, hot, hot, hot, hot, hot, hot, hot, hot and so on. In the environment of VisualC++6.0, this kind of garbled code will appear when printing uninitialized memory of malloc application. For the compiler of visual studio, there is always something to fill in after allocating space. The default filling is as follows: unallocated or statically allocated memory space without initial value is filled with 0xCC. If you accidentally visit them, you will see the following: Output by character is hot (0xCCCC). In general, after allocating space, you should allocate the initial value, but don't access these contents called "junk data". So under normal circumstances, if the program is "hot", it generally proves that there is a bug in the program, such as an array crossing the line. Moreover, there are often bugs where the array is out of bounds, and the program suddenly hits a lot of Chinese characters "hot", which seems to be an inexplicable joy. So programmers say that "hot" is probably the stem of this bug. Yao Yao, swallowing, scalding and brocade are also called "the four kings of garbled characters".