Bug 16117 – std.experimental.allocator does not work with non default constructible types

See https://forum.dlang.org/post/[email protected] for more information Test case: import std.experimental.allocator; struct Foo{ @disable this(); } auto foos = theAllocator.makeArray!Foo(100); Error messsage: ../../.dub/packages/experimental_allocator-2.70.0-b1/src/std/experimental/allocator/package.d(576,34): Error: variable std.experimental.allocator.uninitializedFillDefault!(Foo).uninitializedFillDefault.t default construction is disabled for type immutable(Foo) ../../.dub/packages/experimental_allocator-2.70.0-b1/src/std/experimental/allocator/package.d(612,36): Error: template instance std.experimental.allocator.uninitializedFillDefault!(Foo) error instantiating source/breeze/util/algebraic.d(91,43): instantiated from here: makeArray!(Foo, IAllocator)

I am insisting that there is no bug and the error message is legit. This code doesn't compile either: ``` struct Foo{ @disable this(); } Foo[10] foo; // Error: variable test.foo default construction is disabled for type Foo[10] ```

Good point. Should work if the constructor is passed some argument: import std.experimental.allocator; struct Foo{ @disable this(); this(int) {} } auto foos = theAllocator.makeArray!Foo(100, 42);