On Wednesday, 18 May 2016 at 09:21:30 UTC, Ola Fosheim Grøstad
wrote:
No. The "const float y" will not be coerced to 32 bit, but the
"float y" will be coerced to 32 bit. So you get two different y
values. (On a specific compiler, i.e. DMD.)
I'm not sure that the `const float` vs `float` is the difference
per se. The difference is that in the examples you've given, the
`const float` is being determined (and used) at compile time.
But a `const float` won't _always_ be determined or used at
compile time, depending on the context and manner in which the
value is set.
Let's be clear about the problem -- compile time vs. runtime,
rather than `const` vs non-`const`.
