Function IndexOfElement

Bcore/src/main/cpp/base/stl_util.h:93–97

// Find index of the first element with the specified value known to be in the container.
template <typename Container, typename T>
size_t IndexOfElement(const Container& container, const T& value) {
  auto it = std::find(container.begin(), container.end(), value);
  DCHECK(it != container.end());  // Must exist.
  return std::distance(container.begin(), it);
}

// Remove the first element with the specified value known to be in the container.
template <typename Container, typename T>