https://issues.dlang.org/show_bug.cgi?id=18559

kinke@gmx.net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |kinke@gmx.net

--- Comment #1 from kinke@gmx.net ---
(In reply to hsteoh from comment #0)
> Let 80-bit be an option if the user
> wants to, sure.  But can we please, pretty please, change the default type
> in std.math.* to double instead of real.

Performing the operation in the precision of the operands is what I'd expect. So having to cast explicitly to real if my data is stored as float/double and max precision is needed.

Some math functions are still only implemented for `real`, but they support
reals in double/x87/quadruple precision for the different architectures, i.e.,
support for 64-bit doubles (proper constants, limits etc.) is already there.
E.g., std.math.atan(real) could be generalized to a template
(float/double/real) after adding single-precision support (from Cephes
probably).

--

https://issues.dlang.org/show_bug.cgi?id=18559

Nicholas Wilson <iamthewilsonator@hotmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |iamthewilsonator@hotmail.co
                   |                            |m

--- Comment #2 from Nicholas Wilson <iamthewilsonator@hotmail.com> ---
Please review:

    https://github.com/dlang/phobos/pull/6257
    https://github.com/dlang/dmd/pull/7995
    https://github.com/dlang/druntime/pull/2135

--

https://issues.dlang.org/show_bug.cgi?id=18559

Mathias LANG <pro.mathias.lang@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alex@sunopti.com

--- Comment #3 from Mathias LANG <pro.mathias.lang@gmail.com> ---
*** Issue 19712 has been marked as a duplicate of this issue. ***

--

https://issues.dlang.org/show_bug.cgi?id=18559

John Hall <john.michael.hall@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |john.michael.hall@gmail.com

--- Comment #4 from John Hall <john.michael.hall@gmail.com> ---
I would add to this the functions in std.mathspecial, which are only defined for reals.

--

https://issues.dlang.org/show_bug.cgi?id=18559

Iain Buclaw <ibuclaw@gdcproject.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P1                          |P4

--

https://issues.dlang.org/show_bug.cgi?id=18559

Iain Buclaw <ibuclaw@gdcproject.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://issues.dlang.org/sh
                   |                            |ow_bug.cgi?id=24040

--