Getting a debug error using the function error()

Question

This is a direct follow-up to my last question I asked recently. I would recommend checking it before reading this.

The text given below in blockquote and code sample is from a book called Programming: Principles and Practice using C++, Chapter 5- Errors (Under the Run-time errors section)

So, let’s tackle the problem of argument errors with area(). We have two obvious alternatives:

1. Let the caller of area() deal with bad arguments.
2. Let area() (the called function) deal with bad arguments.

Let’s try the first alternative (“Let the user beware!”) first. That’s the one we’d have to choose if area() was a function in a library where we couldn’t modify it. For better or worse, this is the most common approach. Protecting the call of area(x, y) in main() is relatively easy:

if (x<=0) error("non-positive x");
if (y<=0) error("non-positive y");
int area1 = area(x, y);

Really, the only question is what to do if we find an error. Here, we have called a function error() which we assume will do something sensible. In fact, in std_lib_facilities.h we supply an error() function that by default terminates the program with a system error message plus the string we passed as an argument to error(). If you prefer to write out your own error message or take other actions, you catch runtime_error (§5.6.2, §7.3, §7.8, §B.2.1). This approach suffices for most student programs and is an example of a style that can be used for more sophisticated error handling.

I tried to run the code sample in Visual Studio and this is what I was greeted to by a window of Microsoft C++ Runtime Library under practice34.exe:

Debug Error! Program:

 C:\Users\..\source\repos\practice34\x64\Debug\practice34.exe

abort() has been called (Please Retry to debug the application)

I have options to either Abort, Retry or Ignore.

Retrying gives me this: C:\Users\..\source\repos\practice34\x64\Debug\practice34.exe (process 9020) exited with code -2147483645.

Now I suppose, I should get a simple error in console using my string argument I passed in the error function. But instead I'm getting this. I have no idea why this is happening.