[llvm-dev] RFC: Constructing StringRefs at compile time

[Mehdi Amini via llvm-dev]

> On Nov 29, 2016, at 9:52 AM, Malcolm Parsons <malcolm.parsons at gmail.com> wrote:
> 
> On 29 November 2016 at 17:38, Zachary Turner <zturner at google.com> wrote:
>> I see, but I looked over your proposed implementation from earlier in the
>> thread, and if I'm not mistaken I see this:
> 
> That's a different suggestion.
> 
>> That said, what did you think about my other proposal of the complicated UDL
>> with macro?
>> 
>> #define LIT(x) x_string_ref_literal
>> constexpr StringRef Strings[] = {LIT("a"), LIT("b"), LIT("c")};
> 
> Why bother with the UDL?
> #define LIT(x) StringRef((x), sizeof(x)-1)
> 

There is subtlety though, it changes the result for: LIT(“hello\0world”).

— 
Mehdi