Method PutBefore

Bcore/src/main/cpp/base/safe_map.h:106–111

Used to insert a new mapping at a known position for better performance.

  // Used to insert a new mapping at a known position for better performance.
  iterator PutBefore(const_iterator pos, const K& k, const V& v) {
    // Check that we're using the correct position and the key is not in the map.
    DCHECK(pos == map_.end() || map_.key_comp()(k, pos->first));
    DCHECK(pos == map_.begin() || map_.key_comp()((--const_iterator(pos))->first, k));
    return map_.emplace_hint(pos, k, v);
  }
  iterator PutBefore(const_iterator pos, const K& k, V&& v) {
    // Check that we're using the correct position and the key is not in the map.
    DCHECK(pos == map_.end() || map_.key_comp()(k, pos->first));