[Issue 18227] Assertion failure in iota for floating point

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=18227

Berni <dlang at croco-puzzle.com> changed:

           What    |Removed                     |Added
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                 CC|                            |dlang at croco-puzzle.com

--- Comment #1 from Berni <dlang at croco-puzzle.com> ---
While looking at that problem, I found some related problems:

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iota(-5.0,double.max,1.0)

leeds to "Conversion positive overflow", due to end-start = +infinity

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iota(0.0,1e30,1.0);

leeds to "Conversion positive overflow", due to 1e30 > long.max

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import std.math: nextUp;
iota(0.0,1.0,nextUp(0.0));

leeds to "Conversion positive overflow", due to > long.max potential elements

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iota(1,1+2*float.epsilon,float.epsilon/4)

Works at the moment, but might lead to an endless loop, depending on the
bugfix.

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