Le 12/07/2010 17:34, Edward Diener a écrit :
On 7/11/2010 4:37 AM, Mathias Gaunard wrote:
Le 10/07/2010 18:13, Edward Diener a écrit :
On 7/10/2010 10:57 AM, Steven Watanabe wrote:
AMDG
Edward Diener wrote:
Just the operator metafunctions in the CTL are useful even without the attempts to add concepts in the form of metafuncions. I do not think C++0x, which is still a year or more away, has any "native" support which would allow me to determine whether a type has an operator.
I believe that extended SFINAE makes it a lot easier.
Thanks for the information. Does Boost currently have a macro which checks for extended SFINAE for any compilers which may support it ?
I introduced it a while ago but I'm not certain it works correctly.
BOOST_NO_SFINAE_EXPR should be defined when the compiler doesn't support it.
Is this for lack of support of extended SFINAE in C++0x ? If so, why is listed in the Boost Macro Reference in the Config documentation as a macro which indicates a defect from the current C++ standard ?
It's not C++0x-specific. Albeit C++0x explicitly mandates this feature, it was a fairly fuzzy area in C++03, and wasn't implemented mainly due to name mangling problems.