Building C++ modules

[H. S. Teoh]

On Tue, Aug 13, 2019 at 06:51:10PM +0000, Patrick Schluter via Digitalmars-d wrote:
> On Tuesday, 13 August 2019 at 15:21:56 UTC, H. S. Teoh wrote:
[...]
> > It's not so simple.  The problem is that in C++, the *structure* of
> > the parse tree changes depending on previous declarations. I.e., the
> > lexical structure is not context-free.
[...]
> I love the
> 
>     fon< fun< 1 >>::three >::two >::one
> 
> expression in C++ from Jens Gustedt's blog [1]
> 
> There the expression means something different in C++98 than in C++11
> 
> Let’s have a look how this expression is parsed
> 	
> 1  fon< fun< 1 >>::three >::two >::one    // in C++98
> 2            -----------
> 3       -----------------------
> 4  -----------------------------------
> 5
> 	
> 1  fon< fun< 1 >>::three >::two >::one    // in C++11
> 2       --------
> 3  ---------------------
> 4  ----------------------------
> 5  -----------------------------------
> 
> 
> [1]: https://gustedt.wordpress.com/2013/12/18/right-angle-brackets-shifting-semantics/#more-2083

Yeah, it's things like this that convinced me that C++ is hopelessly and
needlessly over-complex, and that it was time for me to find a better
language. Like D. :-D

Using <> as delimiters for template arguments must have been one of the
biggest blunders of C++, among many other things.


T

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