RE: [boost] BOOST TEST and strict /Za - can theMS lanugage extensions option be enabled in a program

From: Paul A. Bristow (boost_at_[hidden])
Date: 2003-09-04 08:58:42

I suspect (but have not got enough Hungarian language skills and MS Internals to
get it to work)
that a solution is to switch on the LanguageExtensions using two functions:

HRESULT __stdcall get_DisableLanguageExtensions(
   /* [out, retval] */ VARIANT_BOOL* retVal
);
HRESULT __stdcall put_DisableLanguageExtensions(
   /* [in] */ VARIANT_BOOL NewValue
);

Ones seems to get into a Catch-22 in that these can only work if
LanguageExtensions  are already enabled!  Can any Windows Gurus can advise?

However I also find that linking with a test_tools static library is not too
inconvenient.  It can be built non-strict, but the actual test modules can be
compiled fully strict, though they produce some warnings which look ignorable
and/or fixable.  Probably Gennadiy can find some more fun activities than fixing
them ;-)

So I think this is acceptable unless a better solution can be found easily.

Only execution_monitor.cpp seems to require MS language extensions (because it
calls winnt.h etc).

Paul

| -----Original Message-----
| From: boost-bounces_at_[hidden]
| [mailto:boost-bounces_at_[hidden]]On Behalf Of Beman Dawes
| Sent: Thursday, September 04, 2003 1:40 AM
| To: Boost mailing list; Boost
| Subject: Re: [boost] BOOST TEST and strict /Za no lanugage extensions
| option - virturenot fully rewarded?
|
|
| At 09:56 AM 9/3/2003, Paul A. Bristow wrote:
|
|  >In trying to be virtuous and test everything compiled in strict mode as I
|
|  >write it, I am finding myself thwarted by BOOST minimal_test otherwise
|  >excellent test system.
|  >
|  >I aim to compile and test all my code with MSVC 7.1 in strict mode
| (option
|  >/Za -
|  >no language extensions and warning level 4).
|  >
|  >But in practice this is impossible using the minimal_test.cpp
|  >because #include also compiles Windows specific structured exception
|  >handling modules like winNT.h and these require MS extensions to
|  >compile - otherwise zillions of errors.
|  >
|  >It is possible to avoid this by compiling these modules separately with
|  >extensions enabled, building a library, then to compile MY
| modules >strictly, and then linking to the library, but this is a bit more
|  >cumbersome than minimal_testing.
|  >
|  >This problem will also apply to all testing of Boost library items using
|  >the minimal test if we try to raise the code quality bar to 'strict'
|  >compilation.
|  >
|  >Is there any easier way round this so that minimal_test can be used
| without
|  >linking with a library?
|
| If Gennadiy can somehow make boost/test/minimal.hpp (and dependencies) work
| /Za, that's great. But he is already providing a full object-library based
| solution, as well as the header implemented solution. Not to mention three
| separate levels of functionality (execution tools, test tools, full unit
| test). I'd hate to see added complexity to solve a problem that can already
| be dealt with just by using the object-library version of the tools.
| Minimal test was designed to be just that - minimal. It isn't expected to
| be useful in as wide a range of uses as the library as a whole.
|
| Just my 2 cents...
|
| --Beman
|
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