[Issue 6098] Static array corruption of data

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=6098


bearophile_hugs at eml.cc changed:

           What    |Removed                     |Added
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                 CC|                            |bearophile_hugs at eml.cc


--- Comment #7 from bearophile_hugs at eml.cc 2011-06-03 10:21:52 PDT ---
(In reply to comment #4)
> Actually I can just dup manually instead of using the heap:
> 
> return cycle(result.dup);

.dup creates a copy on the heap.


This is a safer implementation:

import std.stdio, std.math, std.algorithm, std.range;

auto makeSine() {
    return cycle(map!q{ sin(a * PI) }(iota(0, 2, 0.2)));
}

void main() {
    auto sineTable = makeSine();
    writeln(take(sineTable, 10));
}


Regarding the unsafety of the version that uses a fixed sized array, I'd like
the compiler to warn better against such bugs.

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