ctypes

[aben20807]

C++

• adder.cc

  #include "adder.h"
  int add(int a, int b)
  {
  return a + b;
  }

• adder.h

  extern "C" {
  int add(int a, int b);
  }

  compile command

  $ g++ -o libadder.so -shared -fPIC adder.cc

Python

• caller.py

  
  from ctypes import cdll

adder_lib = cdll.LoadLibrary("libadder.so") add = adder_lib.add print(add(1, 3))

[aben20807]

• Official ctype doc: https://docs.python.org/3/library/ctypes.html#module-ctypes
• dllexport 與 dllimport 的區別
  • Example: https://github.com/apache/tvm/search?q=TVM_EXPORTS
• test case: fibonacci w/ or w/o cache