One who, or that which, allocates.
Used in a Sentence
allocator
Definitions, parts of speech, synonyms, and sentence examples for allocator.
Editorial note
Moving a std::list will not throw provided the associated memory allocator is noexcept move constructible (and std::allocator is).
Examples16
Definitions2
Parts of speech1
Quick take
One who, or that which, allocates.
Meaning at a glance
The clearest senses and uses of allocator gathered in one view.
(computing) A utility that allocates and deallocates a dynamic resource (usually memory).
Definitions
Core meanings and parts of speech for allocator.
noun
One who, or that which, allocates.
noun
(computing) A utility that allocates and deallocates a dynamic resource (usually memory).
Example sentences
Moving a std::list will not throw provided the associated memory allocator is noexcept move constructible (and std::allocator is).
It's looking for stack frames belonging to the system allocator, so that it can tell whether it's being called reentrantly.
Even FAQ mentions that it's not suitable for low level code exactly because of its assumptions about how memory allocator works.
It had the VP1 loader, memory allocator, filesystem interface, a really horrible shell, and that was about it.
With an allocator and collector that is aware of real time constraints, GC can actually be a pretty huge advantage for achieving low latency.
What do you think the system allocator is doing under the covers?
A generational GC offers faster allocation times than any malloc based allocator, and the collection of the nursery generation is instantaneous in most cases.
The allocator/GC system allocates it from some kind of pool possibly.
In the non-moving-allocator world this is now almost a solved problem.
If you don't realize how the allocator works in your VM you might end up fragmenting your pools and over-allocating virtual memory for a simple process.
My favourite is the big chunk of myserious code in the main system allocator which gropes up the call stack every time you try to allocate memory.
Most notably, now you're unnecessarily stressing the allocator.
Quote examples
"The four pillars of investing" "The intelligent asset allocator" - more technical The Boglehead wiki is also fantastic.
Yes, but in a language like Modula-3 you can have your "well-tuned systems-level program that uses stack, arena, and heap allocation with a good allocator", and still have a GC at your disposal.
In the parlance of Mesos, the Mesos kernel is an "allocator" (in that it assembles and allocates all of the compute resources) and the frameworks are the "schedulers" in that they request and consume "resource offers" (made by the allocator) and then schedule tasks to be run on those accepted resources.
By making a pattern of allocations that brackets a "soft" leak with two "hard" links, an attacker can cause the Win32 allocator to free memory of a known size without that memory being merged into another block (because the adjacent blocks are leaked).
Frequently asked questions
Short answers drawn from the clearest meanings and examples for this word.
How do you use allocator in a sentence?
Moving a std::list will not throw provided the associated memory allocator is noexcept move constructible (and std::allocator is).
What does allocator mean?
One who, or that which, allocates.
What part of speech is allocator?
allocator is commonly used as noun.