For the advanced debugging, let's consider a common pitfall in several programming languages—array out-of-bounds access. This could lead to undefined behavior or crashes.

Consider the following code written in C++:

1#include <iostream>
2using namespace std;
3int main() {
4  // Initializing array
5  int arr[5] = {1, 2, 3, 4, 5};
6  // Trying an out-of-bounds access
7  int x = arr[10];
8  cout << "Accessed value: " << x << endl;
9  return 0;
10}

This code tries to access an index that is out of bounds for the given array. If you run this code on your local machine, depending on your system and compiler, it might result in a segmentation fault, or it might just output some rubbish data. Now, when compiled into WebAssembly and accessed in the browser, it adds another layer of complexity to debugging such issues.

In these scenarios, a combination of C++ debugging (using tools like gdb) and WebAssembly debugging (using browser developer tools) can be highly beneficial.

Debugging tools can help us inspect the variables and call stack, allowing us to investigate the state of our application at the point of the error. These advanced debugging techniques and strategies can be the key to resolving complex problems while developing applications using WebAssembly.

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#include <iostream>

using namespace std;

int main() {

  // Initializing array

  int arr[5] = {1, 2, 3, 4, 5};

  // Trying an out-of-bounds access

  int x = arr[10];

  cout << "Accessed value: " << x << endl;

  return 0;

}