Carl wrote:

I get the following compilation error for this simple program under MSVC6:

************** test.cpp****************** #include <iostream> #include "boost/date_time/gregorian/gregorian.hpp"

int main() { using namespace std;

cout << ispunct(',') << endl;

return 0; }

************************************

error: --------------------Configuration: names_test - Win32 Debug-------------------- Compiling... test.cpp c:\documents and settings\waldbcar.waldbcar\my documents\my projects\vc\test\names_test\test.cpp(8) : error C2668: 'ispunct' : ambiguous call to overloaded function Error executing cl.exe.

test.obj - 1 error(s), 0 warning(s)

been dumped into the global namespace by default. However, it seems like the date-time library must be doing something like:

namespace std { using ::ispunct; }

somewhere in its internals (or maybe just using something else that does?).

This isn't done directly in date-time. I'm guessing that it might have something to do with 'tokenizer' library which date-time uses for parsing. See boost/token_function.hpp for some ispunct magic that is likely at the root of this issue. HTH, Jeff