Matrix Market Reader C++ Library

Integration

You can use this library in your CMake project:

add_subdirectory(external/matrix_reader)
target_link_libraries(${CMAKE_PROJECT_NAME} MatrixMarketReader)

Usage

ifstream is ("/path/to_mtx");

matrix_market::reader reader (is);

if (reader) 
{
  auto &matrix = reader.matrix ();
  auto &meta   = matrix.meta;
  auto col_ids = matrix.get_col_ids ();
  auto row_ids = matrix.get_row_ids ();
  auto data    = matrix.get_dbl_data ();

  for (unsigned int i = 0; i < meta.non_zero_count; i++)
  {
    const unsigned int col = col_ids[i];
    const unsigned int row = row_ids[i];
    const auto value = data[i];
  }
}