[Overview][Constants][Types][Classes][Procedures and functions][Variables] | Reference for unit 'System' (#rtl) |
Release allocated memory
Source position: line 0
procedure Freemem( |
p: pointer; |
Size: PtrInt |
); |
p: pointer |
):PtrInt; |
Freemem releases the memory occupied by the pointer P, of size Count (in bytes), and returns it to the heap. P should point to the memory allocated to a dynamic variable.
An error will occur when P doesn't point to the heap.
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Allocate new memory on the heap |
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Dynamically allocate memory for variable |
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Free dynamically allocated memory |
Program Example28; { Program to demonstrate the FreeMem and GetMem functions. } Var P : Pointer; MM : Longint; begin { Get memory for P } GetMem (P,80); FillChar (P^,80,' '); FreeMem (P,80); end.
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