History of Idiom 209 > diff from v3 to v4
Edit summary for version 4 by daxim:
New Perl implementation by user [daxim]
New Perl implementation by user [daxim]
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Version 3
2019-09-30, 08:04:05
Version 4
2019-09-30, 11:24:33
Idiom #209 Type with automatic deep deallocation
Declare a type t which contains a string s and an integer array n with variable size, and allocate a variable a of type t. Allocate v.s and v.n and set them to the values "Hello, world!" for s and [1,4,9,16,25], respectively. Deallocate v, automatically deallocating v.s and v.n (no memory leaks).
Idiom #209 Type with automatic deep deallocation
Declare a type t which contains a string s and an integer array n with variable size, and allocate a variable a of type t. Allocate v.s and v.n and set them to the values "Hello, world!" for s and [1,4,9,16,25], respectively. Deallocate v, automatically deallocating v.s and v.n (no memory leaks).
Comments bubble
Perl objects are reference counted. <http://p3rl.org/perlref#DESCRIPTION> When $v falls out of scope, its count is decreased to 0 and the dead object is garbage collected. <http://p3rl.org/Devel::Refcount> The memory it occupied is made available again for Perl to reuse.