SWIG tutorial

homepage

SWIG is a software development tool that connects programs written in C and C++ with a variety of high-level programming languages.

http://www.swig.org/

Document

http://www.swig.org/Doc3.0/

install SWIG (macOS)

pre download the pcre package and put 'pcre-8.40.tar' in the root of swig directory
run ./Tools/pcre-build.sh
pre install automake
./autogen.sh
./configure & make & make install

SWIG for Python2.7

create example.h and example.c

/* File : example2.h */
#ifndef TEST_SWIG_LIBRARY_H
#define TEST_SWIG_LIBRARY_H

char* hello();
int m_mod(int n, int m);
#endif

/* File : example2.c */
#include "example2.h"
#include 

char * author = "moment";

char* hello() {
    return "moment's module";
}

int m_mod(int n, int m) {
    return(n % m);
}

create example2.i

/* File : example2.i */
%module example2
%{
/* Put headers and other declarations here */
extern char* author;
extern char*    hello();
extern int    m_mod(int n, int m);
%}

extern char* author;
extern char*    hello();
extern int    m_mod(int n, int m);

generate swig files

swig -python example2.i

build

gcc -fPIC -c example2_wrap.c -I ~/dev/py_venv/test_swig/include/python2.7

export DYLD_LIBRARY_PATH='/Users/moment/CLionProjects/swig_example/'

gcc -lpython2.7 -dynamiclib ../output/lib/libexample2.dylib example2_wrap.o -o _example2.so

Insutanto/swig-example