[Bug c++/55724] [C++11] Default type of a template value is not working

[ed at catmur dot co.uk]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55724



--- Comment #1 from Ed Catmur <ed at catmur dot co.uk> 2012-12-17 19:25:39 UTC 
---

It's not entirely clear in the standard, but my understanding of 14.8.2p5 is

that default template argument substitution is contemporaneous to template

argument deduction for any particular parameter.  Non-type template parameter

types deduced from preceding arguments *are* accepted by gcc:



template<int N> struct S {};

template<typename T, T N> void g(T, S<N>) {}

int main() { S<1> s; g(2, s); }