On Wed, 19 Dec 2012 09:35:39 -0600, Andrei Alexandrescu
<[email protected]> wrote:
On 12/19/12 2:30 AM, Walter Bright wrote:
https://github.com/D-Programming-Language/phobos/pull/1018/files
Shouldn't it be part of std.numeric?
Related, we should have a decision point "this must go through the
review process" vs. "the pull review process is sufficient". New modules
definitely must go through the review process, as should large additions
to existing models.
Andrei
It _IS_ part of std.numeric! Specifically std.numeric.CustomFloat!16; To
quote our own documentation:
// Define a 16-bit floating point values
CustomFloat!16 x; // Using the number
of bits
CustomFloat!(10, 5) y; // Using the
precision and exponent width
CustomFloat!(10, 5,CustomFloatFlags.ieee) z; // Using the
precision, exponent width and format flags
CustomFloat!(10, 5,CustomFloatFlags.ieee, 15) w; // Using the
precision, exponent width, format flags and exponent offset bias
// Use the 16-bit floats mostly like normal numbers
w = x*y - 1;
writeln(w);
// Functions calls require conversion
z = sin(+x) + cos(+y); // Use uniary plus
to concisely convert to a real
z = sin(x.re) + cos(y.re); // Or use the .re
property to convert to a real
z = sin(x.get!float) + cos(y.get!float); // Or use get!T
z = sin(cast(float)x) + cos(cast(float)y); // Or use cast(T) to
explicitly convert
-------------------
The only item missing from std.numeric.CustomFloat is to add an alias this
line so that implicit conversion is supported. Oh, and documentation of
the standard float properties, such as infinity/min/min/etc, which exist
in the code, but are template methods and so don't appear in the ddoc.
