php做网站软件/seo网站seo

首先我们会使用PyMODINIT_FUNC 和PyMethodDef 进行创建c的扩展。
关于PyMethodDef可以的参数含义可以在官网查看

第一步

// 简单的say hello 函数
static PyObject* say_hello(PyObject* self, PyObject* args) {const char* name;if (!PyArg_ParseTuple(args, "s", &name))return NULL;printf("Hello %s!\n", name);Py_RETURN_NONE;
}// lambda 函数调用
void set_seed(int seed) {printf("seed %d!\n", seed);
}// PyMethodDef methods 函数
static void init_module(PyModuleDef* mdef, PyObject* m) {mdef->m_doc = "Inner c++ core of test";typedef PyObject* (*Myds)(PyObject*,PyObject**,int64_t,PyObject*);static PyMethodDef methods[] = {{"hello", (PyCFunction)say_hello, METH_VARARGS, NULL},// lambda 函数{ "lambda_hello",(PyCFunction)(Myds)[](PyObject* self, PyObject** args, int64_t n, PyObject* kw) -> PyObject* {try {uint64_t arg_filled=0;(void)arg_filled;if (n+(kw?Py_SIZE(kw):0)<=1 && n+(kw?Py_SIZE(kw):0)>=1 && PyLong_CheckExact(args[0])) {int arg0 = PyLong_AsLong(args[0]);//!PyErr_Occurred();if (kw) {auto kw_n = Py_SIZE(kw);for (int i=0; i<kw_n; i++) {auto ko = PyTuple_GET_ITEM(kw, i);auto vo = args[i+n];auto ks = PyUnicode_AsUTF8(ko);uint khash = leetcode::hash(ks);if (khash == 16948695u) {// hash match seedCHECK((PyLong_CheckExact(vo)));arg0 = PyLong_AsLong(vo);arg_filled |= 1ull << 0;continue;}LOGf << "Not a valid keyword:" << ks;}}return GET_PY_NONE((set_seed(arg0)));}} catch (const std::exception& e) {std::stringstream ss;ss  << "Wrong inputs arguments";PyErr_Format(PyExc_RuntimeError,"%s\n%s\nFailed reason:%s",ss.str().c_str(),R""(The function declarations are:void lambda_hello(int seed))"",e.what());}return nullptr;},METH_FASTCALL | METH_KEYWORDS,R""(Document:lambda_helloDeclaration:void lambda_hello(int seed))""},{NULL, NULL, 0, NULL}};PyModule_AddFunctions(m, methods);
}// 定义Extention的入口 PyMODINIT_FUNC
#define PYJF_MODULE_INIT(name) \
PyMODINIT_FUNC PyInit_##name() { \PyObject *m; \try { \PyModuleDef *def = new PyModuleDef(); \memset(def, 0, sizeof(PyModuleDef)); \def->m_name = #name; \def->m_doc = ""; \def->m_size = -1; \Py_INCREF(def); \m = PyModule_Create(def); \init_module(def, m); \} catch(const std::exception& e) { \PyErr_SetString(PyExc_RuntimeError, e.what()); \return nullptr; \} \return m; \
}// 声明
PYJF_MODULE_INIT(example_name)

详细的项目代码见github