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version 2.108.0

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Enum member std.experimental.allocator.common.isAllocator

Is true iff A is an allocator.

enum isAllocator(A) = is(typeof(A.allocate(size_t.init)) == void[]) && is(typeof(A.alignment) : size_t);

Example

import std.experimental.allocator.building_blocks.null_allocator : NullAllocator;
import std.experimental.allocator.mallocator : Mallocator;
import std.experimental.allocator.gc_allocator : GCAllocator;
import std.experimental.allocator.mmap_allocator : MmapAllocator;
static assert(isAllocator!NullAllocator);
static assert(isAllocator!Mallocator);
static assert(isAllocator!GCAllocator);
static assert(isAllocator!MmapAllocator);
static assert(!isAllocator!int);

Authors

Andrei Alexandrescu, Timon Gehr (Ternary)

License