Managed pointers
lazarus / 64-FPC development

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jksmithiii · 2024-12-13 18:49

Surely this has already been beaten on, but a pointer type with
Initialize and Finalize operators. Of value or no?

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cdbc · 2024-12-13 19:25

Hi
AFAICR 'AllocMem' initializes allocated memory to zeroes before
returning it to you. ...And there's 'FreeMemAndNil', which deallocates
mem sets the pointer to nil.Code: Pascal  [Select][+][-]window.onload
= function(){var x1 = document.getElementById("main_content_section");
if (x1) { var x = document.getElementsByClassName("geshi");for (var i
= 0; i var  ManagedMem = array of byte; // dynamic arraybegin 
setlength(ManagedMem,100); // uninitialized  ... use your lump of 100
bytes mem ...  // since dynamic arrays are managed types,   // this
deallocates when going out of scopeend; Otherwise, @Thaddy did
something clever with 'SmartPointer', you'll have to search the forum
for that...
Regards Benny

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jksmithiii · 2024-12-13 19:42

Pointer types with implicit initialize and finalize when pointer goes
in/out of scope. That's the built-in safety value. Could write a lib
around that using pointer records I suppose.