GetMem
Allocate new memory on the heap
Declaration
Source position: heaph.inc line 91
procedure Getmem(out p: pointer; Size: PtrUInt);
function GetMem(size: PtrUInt) : pointer;
Description
Getmem reserves Size bytes memory on the heap, and returns a pointer to this memory in p. What happens if no more memory is available, depends on the value of the variable ReturnNilIfGrowHeapfails : if the variable is True then Nil is returned. If the variable is False, a run-time error is generated. The default value is False, so by default an error is generated.
The newly allocated memory is not initialized in any way, and may contain garbage data. It must be cleared with a call to FillChar or FillWord .
For an example, see Freemem .
Errors
None.
See also
| Name | Description |
|---|---|
| Dispose | Free dynamically allocated memory |
| Freemem | Release allocated memory |
| MemSize | Return the size of a memory block. |
| New | Dynamically allocate memory for variable |
| returnnilifgrowheapfails | Describe behaviour if getmem fails. |