[Bug c++/113884] GCC rejects valid program saying ambiguous call when using std::vector

[jlame646 at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113884

--- Comment #9 from Jason Liam <jlame646 at gmail dot com> ---
(In reply to Andrew Pinski from comment #8)
Does that imply that following program is also invalid? GCC rejects the below
program but msvc accepts.

```
struct A
{
  explicit A(int = 10);
  A()= default;
};

A a = {}; //gcc rejects this but msvc accepts
```