shrinkArray

bool shrinkArray(T,  Allocator)(auto  ref  Allocator alloc,
         ref  T[]  array,  size_t delta)

Shrinks an array by delta elements.

If array.length < delta, does nothing and returns false. Otherwise, destroys the last array.length - delta elements in the array and then reallocates the array's buffer. If reallocation fails, fills the array with default-initialized data.

Parameters

`T`	element type of the array being created
`alloc`	the allocator used for getting memory
`array`	a reference to the array being shrunk
`delta`	number of elements to remove (upon success the new length of `array` is `array.length - delta`)

Returns

true upon success, false if memory could not be reallocated. In the latter

case, the slice array[$ - delta .. $] is left with default-initialized elements.

Throws

The first two overloads throw only if alloc's primitives do. The

overloads that involve copy initialization deallocate memory and propagate the exception if the copy operation throws.