### Re^4: return +0

by diotalevi (Canon)
 on Nov 27, 2007 at 16:53 UTC ( #653305=note: print w/replies, xml ) Need Help??

in reply to Re^3: return +0

Just note that -.0 is distinct from .0.

⠤⠤ ⠙⠊⠕⠞⠁⠇⠑⠧⠊

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Re^5: return +0 (-.0?)
by tye (Sage) on Nov 27, 2007 at 22:10 UTC

Perhaps you could be less vague. There is no such distinction in my tests:

```> perl -MDevel::Peek -e"Dump(+.0)"
SV = NV(0xa4a5fc) at 0x3d53c4
REFCNT = 1
NV = 0

> perl -MDevel::Peek -e"Dump(-.0)"
SV = NV(0xa4a60c) at 0x3d53f4
REFCNT = 1
NV = 0

> perl -MDevel::Peek -e"Dump(.0)"
SV = NV(0xa4a5fc) at 0x3d53c4
REFCNT = 1
NV = 0

- tye

It depends on the math libraries? They're different here, at least:

```sidhekin@blackbox[23:22:41]~\$ perl -MDevel::Peek -le 'Dump(.0)'
SV = NV(0x816e490) at 0x814dce4
REFCNT = 1
NV = 0
sidhekin@blackbox[23:22:51]~\$ perl -MDevel::Peek -le 'Dump(-.0)'
SV = NV(0x816e4a0) at 0x814dd20
REFCNT = 1
NV = -0
sidhekin@blackbox[23:22:53]~\$

print "Just another Perl \${\(trickster and hacker)},"
The Sidhekin proves Sidhe did it!

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