Re: concerns when integrating C++ code into guile?

[Hans Aberg]

> On 7 Jan 2015, at 14:52, Matt Wette <address@hidden> wrote:
> 
> Python is written in C yet Qt has been integrated in to produce PyQt.   I 
> wonder how that is done.  I will take a look.

If Python can be compiled as C++, that might be one way.

For proper C, the example below compiles with:
  gcc -lstdc++ main.c test_extern_C.cc -o main
‘gcc' is though 'clang' on OS X 10.10.

---- 
// test_extern_C.cc
#include <string>
#include <cstring>

char str[30];

extern "C" char* hi() {
  std::string s("Hello world!\n");
  strcpy(str, s.c_str());
  return str;
}
----
/* main.c */
#include <stdio.h>

extern char* hi();

int main() {
  char* p = hi();
  printf(p);
  return 0;
}
----