[PATCH] D26332: Add a user-defined literal for StringRef

[Malcolm Parsons via llvm-commits]

malcolm.parsons added a comment.

In https://reviews.llvm.org/D26332#604408, @zturner wrote:

> If the goal here is to achieve constexprness so it doesn't require a static initializer, how about reviving Mehdi's patch which make the const char * constructor explicit, and then adding a constexpr char array constructor?


A char array constructor cannot tell whether the array is a literal or not.
A UDL can only be called with a literal.


https://reviews.llvm.org/D26332