Re: [boost] is_convertible warning when used with float or double types

From: Allen Bierbaum (allenb_at_[hidden])
Date: 2003-04-08 11:57:20

John Maddock wrote:
>>I am getting a strange warning message when using is_convertible<> to 
>>test floats and doubles with GCC 3.2 (RH 8.0 release) and boost 1.30.
>>
>>When I write this code:
>>
>>bool test = boost::is_convertible<float,int>::value;
>>
>>I get the following warning:
>>
>>test.cpp:129:   instantiated from `boost::is_convertible<float, int>'
>>test.cpp:129:   instantiated from here
>>/boost/boost/type_traits/is_convertible.hpp:128: warning: passing
>>    `float' for argument 1 of `static yes_type
>>    boost::detail::checker<T>::_m_check(T, int) [with T = int]'
>>
>>I could just ignore the warning, but I am seeing this with 
>>boost::variant (the variant contains float and double) and there are a 
>>LARGE number of warnings output. :(
>>
>>Can anyone suggest a work around, am I using it wrong, or is this a 
>>known issue with type_traits?
> 
> 
> It should now be fixed in cvs, thanks for reminding me about that one....

could this fix be merged only the 1.30 branch?  I would really like to 
be able to keep using a stable release branch instead of having to 
convert my project over to using the CVS version.  Moving to CVS is 
expecially difficult sunce several of the projects that I rely upon also 
use Boost 1.30 and it is unlikely they will be moving to using boost cvs 
any time soon.

Thanks,
Allen

> 
> John.
> 
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-- 
-- Allen Bierbaum                         allenb_at_[hidden]
-- PhD Candidate             txtmsg - 5152910977_at_[hidden]
-- VR Juggler Team                              www.vrjuggler.org
-- Virtual Reality Applications Center       www.vrac.iastate.edu