Real symmetric matrices are diagonalizable.
How can I prove that real symmetric matrices are diagonalizable ?
FillChar and StringOfChar under Delphi 10.2 for Win64 Release Target
FillChar and StringOfChar under Delphi 10.2 for Win64 Release Target I have a question about a specific programming problem in Delphi 10.2 Pascal programming language. The StringOfChar and FillChar dont work properly under Win64 Release build on CPUs released before year 2012. Expected result of FillChar is just plain sequence of just repeating 8-bit characters in a given memory buffer. Expected result of StringOfChar is the same, but the result is stored inside a string type. But, in fact, when I compile our applications that worked in Delphi prior to 10.2 by the 10.2 version of Delphi, our applications compiled for Win64 stop working properly on CPUs released before year 2012. The StringOfChar and FillChar dont work properly they return a string of different characters, although in a repeating pattern not just a sequence of the same character as they should. Here is the minimal code enough to demonstrate the issue. Please note that the length of the sequence should be at least ...
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