message while running debug: "An Access Violation (Segmentation Fault) raised in your program"

[SheerSt]

Pretty much what the title says. My program has been stopping at a certain point inexplicably. When I ran my program in debug mode and it reached that point, a window popped up saying: "An Access Violation (Segmentation Fault) raised in your program". What could this mean? Many things? One thing?

Also, in the compiler's debug output, it has many lines with:
"error-begin
Error: dll starting at 0x4ab71000 not found.
error
frames invalid"

And then continuing using different addresses than above. I would post the output here, but for some reason my compiler won't allow me to copy it. I'm using Dev-C++ 4.9.9.2, which I think is kind of an old compiler and has a few glitches.

Anyways, if anyone had some insight on what the pop-up might mean, or what the debug output might mean, I would much appreciate it :) I believe that the bug might have something to do with vectors, if that's any help.

[htirwin]

It might be that your trying to access an item in a vector that doesn't exist.

For example, if you had a vector with a size of two, and you did this:

SomeVector[5]=9;

[Moschops]

This usually means that you are trying to read from, or write to, memory that the operating system thinks you shouldn't.

Common causes are dereferencing a NULL pointer, or a pointer with a garbage value in it, or reading too far off the end of an array (or some other such object, such as a vector).

This kind of problem is easily fixed with a debugger. Get a debugger, build with debug symbols, and run it under the debugger. The debugger will identify the exact line where you do this. Spending an hour now learning to use a simple debugger will save you thousands of hours in the future.

[S G H]

I'm using Dev-C++ 4.9.9.2, which I think is kind of an old compiler and has a few glitches.

Sure old. Suggesting Code::Blocks and MingW.