On Tuesday, 7 July 2020 at 23:56:45 UTC, kinke wrote:
On Tuesday, 7 July 2020 at 23:52:05 UTC, 9il wrote:
On Tuesday, 7 July 2020 at 16:38:39 UTC, kinke wrote:
So wouldn't the trivial 'fix' be using `strtod` for double
literals and `strtof` for floats? [For LDC, we wouldn't rely
on the host C runtime or a mir implementation, but use LLVM
facilities anyway.]
This should work if the C runtime handles the values correctly.
I've just opened a PR for DMD (and LDC too):
https://github.com/dlang/dmd/pull/11387
Does this actually mean DMD wouldn't be able to compile itself
with DigigtalMars C runtime?
Sorry, I don't understand. - I think this excess precision was
at some point considered a feature (but probably only for D,
not for DigitalMars C), there's even a test making sure 0.9L
and 0.9 are parsed to the same compile-time value.
DMC strtod [1] isn't IEEE compatible. Just nitpick. Unlikely it
is used to compile DMD thought.
[1]
https://github.com/DigitalMars/dmc/blob/9a774f3f2b3227fd416ec3a83cb9eb8f8751425f/src/core/strtod.c
