tinyxml2 Exeption thrown read access violation

[manic egret]

i tried to install tinyxml2 for my game and when i try to run my game it get this error: Exception thrown: read access violation. **this** was nullptr. and i dont know how i handle it correctly

[willow bough]

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[worthy silo]

thats not an "exception" in the sense of try-catch

its a exception in the sense of cpu exception

Generally the solution is not to handle it after the fact, instead you prevent it from happening

[worthy silo]

imagine if I gave you a letter and asked you to deliver it. But I left the address empty. nullptr is that empty address

In the case of a cpu its probably a crash to try and send that letter.
There are 2 scenarios you get a nullptr:

1. intentional: So instead you check if the address is nullptr when you get the letter and then can do your own error handling based on that
2. bug: so find the place its coming from and fix that so its not giving nullptr anymore

[manic egret]

so i need to pass something into the method where the exeption is to avoid the nullptr cpu error?

[manic egret]

good explanation :) ty

[worthy silo]

no

oh

wait kinda

depends what you mean

[manic egret]

right now i try to search where the compiler is complaining, what variable or file he dont find

[worthy silo]

yes

right so to be clear

void foo(int* i) {
  *i = 1;
}
```if `i` is `nullptr` this is an error, you are not able to assign an integer to a location where there can be no integer
To fix this you find all your `foo`s and make sure that they are not getting passed `nullptr`

[manic egret]

understandable

[willow bough]

@manic egret Has your question been resolved? If so, type !solved :)

[manic egret]

!solved