Bug report for: https://forum.dlang.org/post/cavtukhpddgoilredilk@forum.dlang.org

This code throws a Range violation:

import std.stdio, std.container;
void main() {
  auto pq = heapify([5]);
  pq.insert(8);
}

because the insert method fails to increases length in the case of length == 1:

static if (isDynamicArray!Store)
{
    if (_store.length == 0)
        _store.length = 8;
    else if (length == _store.length)
        _store.length = length * 3 / 2; // problem: 1 * 3 / 2 = 3 / 2 = 1
    _store[_length] = value; // out-of-bounds!
}