Re: [boost] [test] Bug in Mingw support?

Subject: Re: [boost] [test] Bug in Mingw support?
From: Edward Diener (eldiener_at_[hidden])
Date: 2015-07-06 18:29:36

On 7/6/2015 1:32 PM, John Maddock wrote:
> The short program below passes with MSVC and GCC Linux, but fails with
> Mingw-x64 at runtime (the expected failures count gets ignored).
>
> This is with current develop.  Any ideas?
>
> BTW the new decorator based approach does work OK, but is only supported
> on a tiny number of compilers as it seems to rely on the preprocessor
> lib using variadic macros, as opposed to Boost.Config marking them as
> available.

Without wishing to defend or disagree with Paul Mensonides' decision to 
make Boost PP not depend on Boost config and to use a fairly 
conservative test for variadic macro support in Boost PP, Boost.Test 
could do:

#include <boost/config.h>
#define BOOST_PP_VARIADICS !BOOST_NO_CXX11_VARIADIC_MACROS

before including any Boost PP headers to let config determine variadic 
macro support.

>
> Here's the program:
>
> #define BOOST_TEST_MAIN
> #include <boost/test/unit_test.hpp>
>
> BOOST_AUTO_TEST_CASE_EXPECTED_FAILURES(test_main, 10000);
>
> BOOST_AUTO_TEST_CASE(test_main)
> {
>     BOOST_ERROR("one");
>     BOOST_ERROR("two");
> }