[Issue 7438] Functions from std.conv should be pure

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http://d.puremagic.com/issues/show_bug.cgi?id=7438


bearophile_hugs at eml.cc changed:

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                 CC|                            |bearophile_hugs at eml.cc


--- Comment #3 from bearophile_hugs at eml.cc 2012-04-19 15:02:53 PDT ---
(In reply to comment #2)
> Should we close ?

I agree with Jonathan M Davis that maybe asking for them to be always pure is a
bit too much (this is debatable. Maybe it's a good thing still).

But I think we can't close this bug report before this little program, that
shows a very basic usage of to!(), compiles with no errors or warnings:


import std.conv: to;
void main() pure {
    string r = to!string(to!real("2.5"));
}

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