How do I find the location of a "vector subscript out of range" error? C++ Visual Studio

Question

I am quite new to coding. I know what "vector subscript out of range" means, how it occures and how to fix it. But I have many many vectors in my code and often get this error. But when this error hits I always get this error box you all know. And it says "Hit retry to debug your application". And when I click it it brings me to line 1731 in the "vector" file. But how do I get to the point (the line or the file) in my code, where I created this error???

I tried using the Debug-Navigation in VisualStudio to move back and forth to get to my code. But this doesn't work. Thanks for your help in advance.

Answer 1

You should be able to find the problematic place from the call stack. There you can go up and down the stack by double-clicking the corresponding line and check the Autos and Locals debugging windows ( https://learn.microsoft.com/en-us/visualstudio/debugger/autos-and-locals-windows?view=vs-2022 ).

The problem you might have is that you are getting into the debugger too late, when the exception is unhandled (there were no try/catch blocks able to handle this, so it was caught by the C++ infrastructure). Check Debug->Windows->Exception Settings window and set the exception you get to break when the exception is thrown (not unhandled).