Array reference and implicit constructor: error in gcc or not?

Question

The following code compiles fine with clang 3.5.0, but does not compile with gcc 4.9.0 (with the -Wall -Wextra -pedantic-errors flags and with any signs -std=c++03 , -std=c++11 and -std=c++14 ):

 struct S { S(const float(&)[12]) { } }; float v[12]; S f() { return v; } int main() { } 

MS VC 2013 also compiles this code .

Which compiler is right and what is standard behavior?