GCAllocator

D's built-in garbage-collected allocator.

Members

Functions

allocate
void[] allocate(size_t bytes)
deallocate
bool deallocate(void[] b)
expand
bool expand(ref void[] b, size_t delta)
goodAllocSize
size_t goodAllocSize(size_t n)
reallocate
bool reallocate(ref void[] b, size_t newSize)
resolveInternalPointer
Ternary resolveInternalPointer(const void* p, ref void[] result)

Standard allocator methods per the semantics defined above. The deallocate and reallocate methods are @system because they may move memory around, leaving dangling pointers in user code.

Static variables

instance
GCAllocator instance;

Returns the global instance of this allocator type. The garbage collected allocator is thread-safe, therefore all of its methods and instance itself are shared.

Variables

alignment
enum uint alignment;

The alignment is a static constant equal to platformAlignment, which ensures proper alignment for any D data type.

Examples

auto buffer = GCAllocator.instance.allocate(1024 * 1024 * 4);
// deallocate upon scope's end (alternatively: leave it to collection)
scope(exit) GCAllocator.instance.deallocate(buffer);
//...

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