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"perl -V"' output always lists "USE_PERL_ATOF" ??

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From:
sisyphus
Date:
June 12, 2019 11:54
Subject:
"perl -V"' output always lists "USE_PERL_ATOF" ??
Message ID:
CADZSBj0=cdXcqbgLorh9WasHCQjv5ksDDmF4gUpxMwQijvQ3Zg@mail.gmail.com
Hi,
Is it possible to build perl 5.30.0 such that "perl -V" output does NOT
specify "USE_PERL_ATOF" ?

If not, then the obvious question is "Why do we bother specifying it ?"

Additionally, I would find it very helpful if there was something in
the "perl -V" output that would tell us whether perl was assigning floating
point values using strtod/strtold (whichever is appropriate for perl's
nvtype) or not.
This could probably best be achieved by having "perl -V" indicate the
status of both $Config{d_strtod} and $Config{d_strtold}.

For quadmath builds, there's currently no confusion as they always assign
floating point values using strtoflt128.
Yet their "perl -V" output still lists "USE_PERL_ATOF", which I find rather
puzzling.

Cheers,
Rob

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