🚀 go-pugleaf

John R. Williams (johnw@jove.acs.unt.edu) wrote:
| I think it would be even better to make "#pragma once" (a common C 
| extension, AFAIK) into a standardized directive ("#once"?). This would 
| probably save an average of 30 characters per header (the most annoying 
| ones in the whole language(s), IMO).

At least one C++ compiler vendor (MetaWare) implements #c_include, which
has the same semantics as #include, except that it is ignored the second
and subsequent times that it is encountered for the same file.

| Also something I have often wished for was something like #warning which 
| would cause the compiler to emit a warning.

Coincidentally, the same compiler vendor provides #print.  It's quite
useful, actually.

As I've said before, many features that people so often find desirable are
actually already implemented by compiler vendors.  Vote with your wallets.
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