Greetings All,I'm using SWIG for the first time and am running into some problems. I've tried researching at swig.org and python.org, but unfortunately, most of the examples use programs I don't have, such as Solaris, Unix, and Irix. I wish to make my C++ classes and functions accessible from Python, and create the glue code necessary to interface with my compiler. I'm using Python 2.4, MS Visual Studio 2005, and Windows XP command prompt.C++ Code:/* FuncTest.h */#include time.hint fact(int n){ if(n =1) return 1; else return n*fact(n-1);}char *get_time(){ time_t ltime; time(ltime); return ctime(ltime);}Interface File:/* example.i */%module example%{#include "FuncTest.h"%}%include "FuncTest.h"Command Prompt
Input:c:\Utilities\Swig\swig -python -c++ example.iexample.py and example_wrap.cxx are then created. This is where I hit the wall. example_wrap.cxx can't be included in my project because it creates 2 linker errors:error LNK2005: _SWIG_init already defined in Main.obj PENT_wrap.objfatal error LNK1169: one or more multiply defined symbols found C:\My Work\PEntityTest\Release\PEntityTest.exe 1These errors are because of this chunk of code created by SWIG:#ifdef __cplusplusextern "C"#endifSWIGEXPORT void SWIG_init(void) { PyObject *m, *d; /* Fix SwigMethods to carry the callback ptrs when needed */ SWIG_Python_FixMethods(SwigMethods, swig_const_table, swig_types, swig_type_initial); m = Py_InitModule((char *) SWIG_name, SwigMethods); d = PyModule_GetDict(m);
SWIG_InitializeModule(0); SWIG_InstallConstants(d,swig_const_table); }I can't import the example.py module because the generated script tries to import _example.I assume this file is created in another step that I haven't figured out how to do yet. The SWIG tutorial instructs the following:unix % swig -python example.i unix % gcc -c example.c example_wrap.c \-I/usr/local/include/python2.1 unix % ld -shared example.o example_wrap.o -o _example.so I believe this is what I need to do, but using XP command prompt.Any feedback on any one little chunk of this huge post would be helpful.Much thanks.-Mich
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