Method size

backward.hpp:776–780

class StackTraceImplHolder : public StackTraceImplBase {
public:
  size_t size() const {
    return (_stacktrace.size() >= skip_n_firsts())
               ? _stacktrace.size() - skip_n_firsts()
               : 0;
  }
  Trace operator[](size_t idx) const {
    if (idx >= size()) {
      return Trace();