* CodeQL AST in dot and pdf
  #+BEGIN_SRC sh 
    # Produce ast in dot format
    codeql database analyze \
           --format=dot --output=ast.dot \
           -- cpp-dataflow-part1-database solutions/ast.ql

    # Convert dot to pdf
    dot -Tpdf < ast.dot/cpp/print-ast.dot > ast.dot/cpp/print-ast.pdf

    # View the graph
    open ast.dot/cpp/print-ast.pdf


    # This comes from
    unzip -v cpp-dataflow-part1-database/src.zip
    # Archive:  cpp-dataflow-part1-database/src.zip
    #  Length   Method    Size  Cmpr    Date    Time   CRC-32   Name
    # --------  ------  ------- ---- ---------- ----- --------  ----
    #     3280  Defl:N      880  73% 03-17-2025 08:59 8057b2ea  Users/hohn/local/codeql-workshop-dataflow-c/tests-common/test_part1.c
    # --------          -------  ---                            -------
    #     3280              880  73%                            1 file
  #+END_SRC

* CodeQL CFG in dot and pdf
  XX: The whole control flow graph is very large, so the query narrows it to the
  function of interest,
  #+BEGIN_SRC c++
    int copy_mem(unsigned int unused, dyn_input_t *input,
                 unsigned int input_types) {...}

  #+END_SRC
  from [[./tests-common/test_part1.c]]

  #+BEGIN_SRC sh 
    # Produce CFG in dot format
    codeql database analyze                             \
           --format=dot --output=cfg.dot                \
           -j8 -v --ram=16000                           \
           --rerun                                      \
           --                                           \
           cpp-dataflow-part1-database                  \
           graphs/cfg.ql                            


    # Convert dot to pdf
    dot -Tpdf < cfg.dot/cpp/print-cfg.dot > cfg.dot/cpp/print-cfg.pdf

    # View the graph
    open cfg.dot/cpp/print-cfg.pdf
  #+END_SRC