swap_columns       90 modules/core/src/lpsolver.cpp static void swap_columns(Mat_<double>& A,int col1,int col2);
swap_columns      214 modules/core/src/lpsolver.cpp         swap_columns(c,iterator_offset,0);
swap_columns      215 modules/core/src/lpsolver.cpp         swap_columns(b,iterator_offset,0);