cxx2flow

简体中文 | English

Turn your C/C++ code into flowchart

Demo

For more demo please refer to GALLERY

Two different styles：

polyline	smooth

inline int read() {  //快读
  char c = getchar();
  int x = 0, f = 1;
  while (c < '0' || c > '9') {
    if (c == '-') f = -1;
    c = getchar();
  }
  while (c >= '0' && c <= '9') {
    x = x * 10 + c - '0';
    c = getchar();
  }
  return x * f;
}

Error reporting

Installation

Compile from source

cargo install cxx2flow

Prebuilt binary

It is recommended to download prebuilt binary from Github Release.

GUI version

For those who are not familiar with command line, I recommend the GUI version of cxx2flow. https://github.com/Enter-tainer/cxx2flow-gui/releases

Usage

To compile the generated dot file, you need graphviz. You can also copy the output to online graphviz services such as http://magjac.com/graphviz-visual-editor/ .

Convert your C/C++ code to control flow chart

Usage: cxx2flow [OPTIONS] [INPUT] [FUNCTION]

Arguments:
  [INPUT]     Sets the path of the input file. e.g. test.cpp
              If not specified, cxx2flow will read from stdin.
  [FUNCTION]  The function you want to convert. e.g. main [default: main]

Options:
  -o, --output <OUTPUT>  Sets the output file.
                         If not specified, result will be directed to stdout.
                         e.g. graph.dot
  -c, --curly            Sets the style of the flow chart.
                         If specified, output flow chart will have curly connection line.
      --cpp              Use C preprocessor.
  -t, --tikz             Use tikz backend.
  -d, --dump-ast         Dump AST(For debug purpose only).
  -h, --help             Print help information
  -V, --version          Print version information

Note that you need to manually compile the dot file using graphviz to get SVG or PNG files.

EXAMPLES:
    cat main.cpp | cxx2flow | dot -Tsvg -o test.svg
    cxx2flow test.cpp | dot -Tpng -o test.png
    cxx2flow main.cpp my_custom_func | dot -Tsvg -o test.svg

Please give me star if this application helps you!
如果这个应用有帮助到你，请给我点一个 star！
https://github.com/Enter-tainer/cxx2flow

Limitations

• The support of preprocessor is based on cpp, and is disabled by default. --cpp flag is needed to enable it. It will fail if cpp does not exist in PATH.
• Supported control flow keyword: while，for，if，break，continue，break，return，switch, goto, do-while。
• Very basic support for range based loop in C++ 11.