13 Dec
2013
13 Dec
'13
12:32 a.m.
AMDG On 12/12/2013 04:12 PM, Eric Niebler wrote:
On 12/12/2013 9:35 AM, Matt Calabrese wrote:
A little hackish, but:
template< class T, int = 0, class S > boost::optional<T> lexical_cast( S const&, std::nothrow_t );
Is that even legal?!
I believe so. Since S can be deduced, it doesn't have to be specified explicitly, so it doesn't make the default for the second argument useless.
A non-defaulted template parameter after a defaulted one? <boggle> How will this fare on older compilers, I wonder.
Older compilers won't accept default template parameters for function templates at all, since it's a C++11 feature. In Christ, Steven Watanabe