rapidyaml/changelog/current.md

Changes

• PR#565 (fixes #564) - Tree arena: allow relocation of zero-length strings when placed at the end (relax assertions triggered in Tree::_relocated())
• PR#561 (fixes #559) - Byte Order Mark: account for BOM when determining block indentation
• PR#563 (fixes #562) - Fix bug in NodeRef::cend()
• PR#547 - Fix parsing of implicit first documents with empty sequences, caused by a problem in Tree::set_root_as_stream():

  []  # this container was lost during parsing
  ---
  more data here
  

• PR#557 - Tree is now non-empty by default, and Tree::root_id() will no longer modify the tree when it is empty. To create an empty tree now, it is necessary to use the capacity constructor with a capacity of zero:

  // breaking change: default-constructed tree is now non-empty
  Tree tree;
  assert(!tree.empty()); // MODIFIED! was empty on previous version
  id_type root = tree.root_id(); // OK. default-constructed tree is now non-empty
  
  // to create an empty tree (as happened before):
  Tree tree(0); // pass capacity of zero
  assert(tree.empty()); // as expected
  // but watchout, this is no longer possible:
  //id_type root = tree.root_id(); // ERROR: cannot get root of empty tree.
  

  This changeset also enables the python library to call root_id() on a default-constructed tree (fixes #556).