In a C++ mex file you can output std::cout to the command line, by putting the following code somewhere in your mex file:
class mystream : public std::streambuf
{
protected:
virtual std::streamsize xsputn(const char *s, std::streamsize n) { mexPrintf("%.*s", n, s); return n; }
virtual int overflow(int c=EOF) { if (c != EOF) { mexPrintf("%.1s", &c); } return 1; }
};
class scoped_redirect_cout
{
public:
scoped_redirect_cout() { old_buf = std::cout.rdbuf(); std::cout.rdbuf(&mout); }
~scoped_redirect_cout() { std::cout.rdbuf(old_buf); }
private:
mystream mout;
std::streambuf *old_buf;
};
static scoped_redirect_cout mycout_redirect;
