Re: Include path syntax on Mac

[Hans Åberg]

> On 15 Aug 2018, at 18:44, David Kastrup <address@hidden> wrote:
> 
> Hans Åberg <address@hidden> writes:
> 
>>> On 15 Aug 2018, at 17:05, David Kastrup <address@hidden> wrote:
>>> 
>>> C++11 would give us <experimental/filesystem> I think?  Which should be
>>> good for most path manipulations.  At least I think so.
>> 
>> It was added in C++17 [1]. GCC 7 or later have -std=c++17. GCC 6 or
>> later have C++14 as default, without the -std option.
>> 
>> 1. https://en.cppreference.com/w/cpp/filesystem
> 
> I was talking about <experimental/filesystem> , not <filesystem> .

That is not part of the standard, so it depends on the compiler [1]. Apple 
inhouse clang has that for optional even though accepting -std=c++17, so I 
switched to clang6, where it is properly implemented.

1. https://en.cppreference.com/w/cpp/experimental