Unexplained C++ default int values

Question

I\'ve been refactoring some code and I noticed some wonky behavior involving an uninitialized int array:

int arr[ARRAY_SIZE];

I set a break

Answer 1

You need to explicitly set the values for the array - they do not "default" to anything. Try:

memset(mouseBufferX,0,sizeof(mouseBufferX));

//or 

int mouseBufferX[mouseBufferSize] = {0};

//and, in C++ this *might* work too (fuzzy memory!):

int mouseBufferX[mouseBufferSize] = {};