[Issue 16341] 32-bit floating-point issue

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16341

ag0aep6g at gmail.com changed:

           What    |Removed                     |Added
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             Status|NEW                         |RESOLVED
                 CC|                            |ag0aep6g at gmail.com
         Resolution|---                         |INVALID

--- Comment #1 from ag0aep6g at gmail.com ---
I think this is due to D allowing floating points operations to be done at a
higher precision than is stated in the source.

That is, `fun` may do its calculations with doubles or reals, and it may return
a double or real in a register. The same applies to `working` and `failing`,
but `working` puts the results from `fun` on the stack first, forcing a
conversion to float, while `failing` returns directly, so the operands are not
converted to float.

Note that the assert passes when you compile with -O, because then `working` is
optimized to behave like `failing`.

Closing as INVALID. Feel free to reopen if you disagree.

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