message: hammer: moved buffer size to interface
diff: @@ -10307,9 +10307,9 @@ class basic_json
  class cached_input_stream_adapter : public input_adapter
  {
  public:
  - cached_input_stream_adapter(std::istream& i)
  + cached_input_stream_adapter(std::istream& i, const size_t buffer_size)
  : is(i), start_position(is.tellg()),
  - buffer(1024 * 1024, std::char_traits<char>::eof())
  + buffer(buffer_size, std::char_traits<char>::eof())
  {
  // immediately abort if stream is erroneous
  if (JSON_UNLIKELY(i.fail()))
  @@ -10552,7 +10552,7 @@ class basic_json
  }
  explicit lexer(std::istream& i)
  - : ia(new cached_input_stream_adapter(i)),
  + : ia(new cached_input_stream_adapter(i, 1024 * 1024)),
  decimal_point_char(get_decimal_point())
  {}
  