far ,near ,huge explain.

char huge *near *far *ptr1;

what is ptr far,huge or near?

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In the old days, according to the Turbo C manual, a near pointer was merely 16 bits when your entire code and data fit in the one segment. A far pointer was composed of a segment as well as an offset but no normalisation was performed. And a huge pointer was automatically normalised. Two far pointers could conceivably point to the same location in memory but be different whereas the normalised huge pointers pointing to the same memory location would always be equal.

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