是否可以将C预处理器宏可靠地转换为python代码？ [英] Is it possible to reliably convert C preprocessor macros to python code?

问题描述

我有一堆 C 宏，我需要在python中对其进行仿真。我看到了一些指向pygccxml或ctypeslib等的指针。这是要走的路吗？还是有更好的东西？

I have a bunch of C macros the operation of which I need to simulate in python. I saw some pointers to pygccxml or ctypeslib etc. Are these the ways to go? Or is there something out there that is better ?

C 宏，如果它们更改时，我希望python实现是自动的生成，而不必进行手动修改。因此就是问题。

The C macros if and when they change, I would like the python implementation to be auto generated rather than having to make manual modifications. Hence the question.

my_c_header.h ：

#ifdef OS

#define NUM_FLAGS   (uint16_t)(3)
#define NUM_BITS    (uint16_t)(8)

#else

#define NUM_FLAGS   (uint16_t)(6)
#define NUM_BITS    (uint16_t)(16)
#endif

#define MAKE_SUB_FLAGS    (uint16_t)((1<<NUMFLAGS) -1)

#define MAKE_TOTAL_FLAGS(x)  (uint16_t)((x & MAKE_SUB_FLAGS) >> NUM_BITS)

/* #defines type 2 */

#ifdef OS
#DO_SOMETHING(X)  os_specifc_process(x)
#else
#DO_SOMETHING(x)  
#endif

/* #defines type 3 */

enum
{
CASE0,
CASE1,
CASE2
}

#define MY_CASE_0     ((uint16_t)CASE0)
#define MY_CASE_1     ((uint16_t)CASE1)
#define MY_CASE_2     ((uint16_t)CASE2)


/*End of file <my_c_header.h> */

推荐答案

如果要编写扩展模块，请使用 https://docs.python.org/3/c- api / module.html＃c.PyModule_AddIntMacro

If you are writing an extension module, use https://docs.python.org/3/c-api/module.html#c.PyModule_AddIntMacro

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