#pragma once
#include <vector>
#include <cstddef>
namespace xps {
std::vector<int> fibosList(int lim_up) ;
} // namespace xps
(.env) [boris@fedora33server FIBOPLUS]$ cat fibos.cpp
#include <iostream>
#include <vector>
#include "fibos.h"
namespace xps {
int cpp_fib(int n)
{
if (n < 2)
return n;
else
return cpp_fib(n-1)+cpp_fib(n-2);
}
std::vector<int> fibosList(int lim_up)
{
std::vector<int> result;
int n;
for(n=0; n <= lim_up; n++)
{
result.push_back(cpp_fib(n));
}
return result;
}
} //namespace
(.env) [boris@fedora33server FIBOPLUS]$ cat fibos_wrapper.cpp
#include <Python.h>
#include <iostream>
#include <vector>
#include "fibos.h"
#pragma GCC diagnostic ignored "-Wsign-compare"
// Our Python binding to our C function
extern "C"{}
namespace {
static PyObject *fibos(PyObject* self, PyObject* args)
{
int m;
if(!PyArg_ParseTuple(args,"i",&m))
return NULL;
std::vector<int>fibos = xps::fibosList(m);
PyObject* result = PyList_New(fibos.size());
for(int i = 0; i < fibos.size(); i++) {
PyList_SetItem(result, i, PyLong_FromLong(fibos[i]));
}
return result;
}
// Our Module's Function Definition struct
// We require this `NULL` to signal the end of our method
// definition
static PyMethodDef myMethods[] = {
{ "fibos", fibos, METH_VARARGS, "Calculate prime numbers" },
{ NULL, NULL, 0, NULL }
};
// Our Module Definition struct
static struct PyModuleDef myModule = {
PyModuleDef_HEAD_INIT,
"myModule",
"Test Module",
-1,
myMethods
};
// Initializes our module using our above struct
PyMODINIT_FUNC PyInit_myModule(void)
{
return PyModule_Create(&myModule);
};
} // namespace
(.env) [boris@fedora33server FIBOPLUS]$ cat setup.py
from distutils.core import setup, Extension
import sysconfig
language = 'c++'
std = 'c++20'
default_compile_args = sysconfig.get_config_var('CFLAGS').split()
extra_compile_args = [f"-std={std}", "-Wall", "-Wextra", "-Werror", "-DNDEBUG", "-O3"]
setup(name = 'myModule', version = '1.0', \
ext_modules = [Extension('myModule', ['fibos_wrapper.cpp','fibos.cpp'])])
(.env) [boris@fedora33server FIBOPLUS]$ python setup.py install
running install
running build
running build_ext
building 'myModule' extension
creating build
creating build/temp.linux-x86_64-3.9
gcc -pthread -Wno-unused-result -Wsign-compare -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -O2 -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -D_GNU_SOURCE -fPIC -fwrapv -O2 -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -D_GNU_SOURCE -fPIC -fwrapv -O2 -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/home/boris/FIBOPLUS/.env/include -I/usr/include/python3.9 -c fibos.cpp -o build/temp.linux-x86_64-3.9/fibos.o
gcc -pthread -Wno-unused-result -Wsign-compare -DDYNAMIC_ANNOTATIONS_ENABLED=1 -DNDEBUG -O2 -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -D_GNU_SOURCE -fPIC -fwrapv -O2 -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -D_GNU_SOURCE -fPIC -fwrapv -O2 -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fstack-protector-strong -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/home/boris/FIBOPLUS/.env/include -I/usr/include/python3.9 -c fibos_wrapper.cpp -o build/temp.linux-x86_64-3.9/fibos_wrapper.o
creating build/lib.linux-x86_64-3.9
g++ -pthread -shared -Wl,-z,relro -Wl,--as-needed -Wl,-z,now -g -Wl,-z,relro -Wl,--as-needed -Wl,-z,now -g build/temp.linux-x86_64-3.9/fibos.o build/temp.linux-x86_64-3.9/fibos_wrapper.o -L/usr/lib64 -o build/lib.linux-x86_64-3.9/myModule.cpython-39-x86_64-linux-gnu.so
running install_lib
copying build/lib.linux-x86_64-3.9/myModule.cpython-39-x86_64-linux-gnu.so -> /home/boris/FIBOPLUS/.env/lib64/python3.9/site-packages
running install_egg_info
Removing /home/boris/FIBOPLUS/.env/lib64/python3.9/site-packages/myModule-1.0-py3.9.egg-info
Writing /home/boris/FIBOPLUS/.env/lib64/python3.9/site-packages/myModule-1.0-py3.9.egg-info
(.env) [boris@fedora33server FIBOPLUS]$ ll
total 24
drwxrwxr-x. 4 boris boris 63 Jun 26 18:41 build
-rw-rw-r--. 1 boris boris 394 Jun 26 18:34 fibos.cpp
-rw-rw-r--. 1 boris boris 131 Jun 26 18:28 fibos.h
-rw-rw-r--. 1 boris boris 1215 Jun 26 18:37 fibos_wrapper.cpp
-rw-rw-r--. 1 boris boris 84 Jun 26 18:06 MyProgList.py
-rw-rw-r--. 1 boris boris 280 Jun 26 17:43 MyProg.py
-rw-rw-r--. 1 boris boris 368 Jun 26 18:31 setup.py
(.env) [boris@fedora33server FIBOPLUS]$ cat MyProgList.py
import myModule
a = int(input("\nInput upper limit : "))
print(myModule.fibos(a))
(.env) [boris@fedora33server FIBOPLUS]$ python MyProgList.py
Input upper limit : 11
[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]
(.env) [boris@fedora33server FIBOPLUS]$ python MyProgList.py
Input upper limit : 13
[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233]
(.env) [boris@fedora33server FIBOPLUS]$ python MyProgList.py
Input upper limit : 15
[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610]
(.env) [boris@fedora33server FIBOPLUS]$ python MyProgList.py
Input upper limit : 17
[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597]
