Sorry for previous reply. I overlooked use of the index variable X.
Which C compiler are you comparing the FPC with?
GCC, MSVC, CC (include version please)
Some compilers have a function optimization, some have just a statement optimization.
Could you post a whole example? The whole program would prevent misunderstanding. As your program could be rewritten using B as constant or the inner loop as : A := (A + X) * B;
How are you measuring the time?
Jan Ruzicka
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