C Memory

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I get the error, although I don't call any unload method (or quit 
any SDL component) and although I recompiled derelict3, where I 
comment out all static (shared) DTor's.
Maybe the only solution would be (as you said) to transfer all 
deallocations into a terminate method, but that is no opinion for 
me (and would cause a growing memory, if the game runs a long 
time). And I want to use RAII. So I must live with this invalid 
memory error.
But thanks to you and all others for your help. :)