On Tuesday, 1 November 2016 at 13:33:02 UTC, Steven Schveighoffer wrote:
android_app.savedState appears to be defined here:


It's a void *. So comparing against null with != is identical to !is.

There are actually cases where comparing against null with != is valid, and what you want exactly (e.g. comparing a string to null to check for empty string).

In this case, fixing the comparison is not the answer. What is happening is one of several things:

1. I don't know what type `engine` is, so if it's a pointer, then dereferencing the state member may be the culprit if engine is invalid. 2. If state is a pointer, then you could be crashing at the if statement (unlikely).
3. state or state.savedState isn't being properly initialized.
4. Something else (e.g. code generation error). Hope it's not this one.


I don't know what was bad but I start working on something different. I managed to compile project with SDL. Using SDL c++ code which call my D code. It's work.
Used libraries: SDL, Assimp, FreeImage.

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