November 2019
Beginner to intermediate
674 pages
15h
English
Content preview from Mastering Delphi Programming: A Complete Reference Guide
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Memory management functions
Besides the various internal functions that the Delphi runtime library (RTL) uses to manage strings, arrays and other built-in data types, RTL also implements various functions that you can use in your program to allocate and release memory blocks. In the next few paragraphs, I'll tell you a little bit about them.
Memory management functions can be best described if we split them into a few groups, each including functions that were designed to work together.
The first group includes GetMem, AllocMem, ReallocMem, and FreeMem.
The procedure GetMem(var P: Pointer; Size: Integer) allocates a memory block of size Size and stores an address of this block in a pointer variable P. This pointer variable is not limited ...
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