swig c++;对于python(使用numpy):错误:使用未声明的标识符';导入数组';
操作系统:macOS Sierra 10.12.4 python发行版:AnacondaPython 3.6swig c++;对于python(使用numpy):错误:使用未声明的标识符';导入数组';,python,c++,numpy,swig,Python,C++,Numpy,Swig,操作系统:macOS Sierra 10.12.4 python发行版:AnacondaPython 3.6 我正在学习如何用ditudil将Nuffy数组传递给C++。 运行时出现错误: $ python setup.py build_ext 错误: sample_wrap.cpp:4571:3: error: use of undeclared identifier 'import_array' import_array(); ^ 1 error generated. 文件:sa
我正在学习如何用ditudil将Nuffy数组传递给C++。 运行时出现错误:
$ python setup.py build_ext
错误:
sample_wrap.cpp:4571:3: error: use of undeclared identifier 'import_array'
import_array();
^
1 error generated.
文件:sample.i
/* file: sample.i */
%module sample
%{
/* include C++ header files necessary to compile the interface */
#include "src/sample.h"
%}
%include "typemaps.i"
%include "src/numpy.i"
%init %{
import_array();
%}
%apply (int DIM1, double* IN_ARRAY1) {(int n, double *a), (int m, double *b)};
%apply (int DIM1, double* ARGOUT_ARRAY1) {(int size, double *arr)};
%include "src/sample.h"
文件:setup.py
# ----- file: setup.py -----
from distutils.core import setup, Extension
import numpy
import os
name = "sample" # name of the module
version = "1.0" # the module's version number
os.environ['CC'] = 'g++';
os.environ['CXX'] = 'g++';
setup(name=name, version=version,
ext_modules=[Extension(name='_sample',
sources=["sample.i", "src/sample.cpp"],
include_dirs=['src',numpy.get_include()],
swig_opts=["-c++"]
)]
)
文件:src/sample.cpp
/* ----- file: src/sample.cpp ----- */
#include <cmath>
#include "sample.h"
double dot(int n, double *a, int m, double *b){
double sum = 0.0;
for (int i=0; i<n; ++i){
sum += a[i]*b[i];
}
return sum;
}
void arange(int size, double *arr){
for (int i=0; i<size; ++i)
arr[i] = i;
}
我已尝试将os.environ['CC']='g++'
和os.environ['CXX']='g++'
更改为os.environ['CC']='g++-6'
和os.environ['CXX']='g++-6'
以便用GUN g++编译时不会发出叮当声,但仍会出现类似错误:
sample_wrap.cpp: In function 'PyObject* PyInit__sample()':
sample_wrap.cpp:4571:16: error: 'import_array' was not declared in this scope
import_array();
^
基于此,我将尝试添加#使用_INIT
定义SWIG_文件
/*文件:sample.i*/
%模块样本
%{
#使用_INIT定义SWIG_文件
#包括“src/sample.h”
%}
sample_wrap.cpp: In function 'PyObject* PyInit__sample()':
sample_wrap.cpp:4571:16: error: 'import_array' was not declared in this scope
import_array();
^