Summary of array access out-of-bounds debugging

The following two lines of code are array out-of-bounds access, which may cause program crash.

Int narray [x];

Narray [y] = 10;

Here, both X and Y are constants. For example

Int narray [5];

Narray [8] = 10;

The symptoms are summarized as follows:

When Y = X or Y =-1, the following error occurs during Debug:

Run-Time check failure #2-stack around the variable 'narray' was has upted.

But y> X or Y

If y = X, the release fails, but the minidump is not generated.

Sometimes, the array access is out of bounds in the release version, and the program will continue to run. Very strange.