SetLength() and memory checking

[PeteS]

I've decide it's about time to pay attention to memory checking and potential runtime errors in a program I'm writing - to make it more robust and thus be able to share it with others.

I use dynamic arrays a lot, creating them with SetLength().  What is the best way to test whether I can actually safely create such an array? 

[bflm]

I've decide it's about time to pay attention to memory checking and potential runtime errors in a program I'm writing - to make it more robust and thus be able to share it with others.

I use dynamic arrays a lot, creating them with SetLength().  What is the best way to test whether I can actually safely create such an array? 

IIRC, something like this (not tested)?

Code: [Select]

//...
  try
    SetLength(MyArray, SomeSize);
  except
    on E: EOutOfMemory do
      // recover or reraise or abort or ...
  end;
//...


[marcov]

Something like that, but only when sysutils is imported (otherwise RTE's are not converted to exceptions)