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Delphi – Using FastMM4 part 3: wrong persistent field type (TSmallIntField or TWordField) when getting IsNull results in memory corruption

The Wiert Corner – This is the third post in a series around using FastMM4. The start of the series contains a listing of other posts as well and will be updated when new posts become available. This particular case is about detecting memory overwrites like FastMM has detected an error during a FreeMem operation. The block footer has been corrupted.. Some of them are extremely hard to pin down, especially because there are usually two cases: Allocated memory that is too small to hold the data structure Free memory that still has a reference to it, which us later used when it was freed This post is on the first ...
Favorite? Off-Topic? jpluimers @ 2009-08-17 11:01


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