Memory corruption warning

Blitz3D Forums/Blitz3D Programming/Memory corruption warning

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Warren
 #1
Just a heads up to my fellow Blitzers. Clearing a surface after freeing the mesh it belongs to silently corrupts memory until your app dies in some random fashion.

I just spent 2 days trying to figure out why my new rendering code was dying in random places and for seemingly no good reason.

The problem was that I had...

FreeEntity( MyMesh )
ClearSurface( MySurf )

...and what I needed to have was...

ClearSurface( MySurf )
FreeEntity( MyMesh )

Seems obvious, but Blitz gives -no- kind of runtime error or warning about doing this. Memory is silently corrupted behind the scenes and the app will eventually die.

So be aware.