Pointer.autorelease | LuaRT free and open source Windows programming framework for Lua

Pointer.autorelease readonly

The Pointer.autorelease property controls wether the pointed memory is freed by the Lua garbage collector, are not (the default).

All the C data objects from the C FFI module manages their memory, so the user don't have to take care of freeing the memory pointed to those kind of values.

Example


local crt = c.Library()       

-- Use the Library instance to define the C function "_strdup()"
-- this function takes one arguments of the Z type (const char *)
-- and returns a char* value for the duplicated string
crt._strdup = "(Z)p"

-- Calls the just defined C function, returning a new C Pointer
local ptr = crt._strdup("Hello LuaRT")

-- Prints the duplicated string
print(ptr:as("char*"))

-- the _strdup() function returns a pointer that must be freed by the user
ptr.autorelease = true