我是Cython的新手,我试图让一个从Python调用C函数的测试项目工作:
TEST.CPP :
void testFn(int arr[]);
void testFn(int arr[])
{
arr[0] = 1;
arr[1] = 2;
}
caller.pyx :
cdef extern from "test.cpp":
void testFn(int arr[])
cpdef myTest(*arr):
testFn(arr)
setup.caller.py :
from distutils.core import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext
sourcefiles = ['caller.pyx']
ext_modules = [Extension("caller", sourcefiles)]
setup(
name = 'test app',
cmdclass = {'build_ext': build_ext},
ext_modules = ext_modules
)
但是当我尝试构建项目时,我收到一个错误:
$ python setup.caller.py build_ext --inplace
running build_ext
cythoning caller.pyx to caller.c
Error compiling Cython file:
------------------------------------------------------------
...
cdef extern from "test.cpp":
void testFn(int arr[])
cpdef myTest(*arr):
^
------------------------------------------------------------
caller.pyx:4:6: 'myTest' is not a type identifier
答案 0 :(得分:1)
就我而言,我不需要" cpdef"或者" cdef"对于第二个定义,通常" def"做了诀窍:
def myTest(int[:] arr):
testFn(&arr[0])