On 6/6/2016 1:04 AM, Observer wrote:
On Monday, 6 June 2016 at 07:01:33 UTC, Walter Bright wrote:
On 6/5/2016 11:38 PM, rikki cattermole wrote:
On 06/06/2016 6:29 PM, Andrei Alexandrescu wrote:
On 6/6/16 6:17 AM, Andre Pany wrote:
to be usable for companies which want to create economic software,
in my opinion D lacks std.decimal.
Do C, C++, Java, Go, or Rust have a standard decimal type? -- Andrei
Apparently there's a spec: http://speleotrove.com/decimal/decarith.html
There's been a lot of work on decimal floating-point types for
C and C++, even if they haven't yet made it into the languages.
See, for instance:
http://www.open-std.org/JTC1/SC22/WG14/www/docs/n1312.pdf
http://open-std.org/jtc1/sc22/wg21/docs/papers/2014/n3871.html
Interestingly, that contains links to open source C implementations, meaning we
can just provide a D wrapper.
https://software.intel.com/en-us/articles/intel-decimal-floating-point-math-library/
http://speleotrove.com/decimal/decnumber.html
and
http://www.quadibloc.com/comp/cp020302.htm
the last of which is not a standards-related document but
provides some interesting detail.
The point being, while decimal floats are something to be
wished for, it's a complex matter, not something that can be
quickly thrown together.
That said, GNU C++ does provide some support:
https://gcc.gnu.org/onlinedocs/gcc/Decimal-Float.html
