On Tuesday, 25 March 2014 at 19:25:43 UTC, ixid wrote:
I think this should not be done. Note that even though code
which is D could reintroduce commas safely, C code will still
exist at that time, and likely need porting to D. The
principle that C code should either do the same thing, or not
compile, would be violated.
What would be an example of C code that would compile in a D
where the comma operator was used for tuples? Also why is cut
and
pasting C code to D so important? If it's non-trivial surely
people will just use extern C. If it's trivial they can make the
minor improvements necessary.
This is valid in both C and C++:
i, j = 0, 1;
It is equivalent to the following:
i;
j = 0;
1;
There might be more complex examples in C++ however, which allows
more complex L-value expressions. This is invalid C, but valid
C++:
(i, j) = (0, 1);
In C++, it is equivalent to:
j = 1;
