[Issue 4085] Steps toward a static foreach

[d-bugmail at puremagic.com]

http://d.puremagic.com/issues/show_bug.cgi?id=4085



--- Comment #2 from bearophile_hugs at eml.cc 2011-06-01 14:50:48 PDT ---
Static foreach loops have a small disadvantage. This is the original code:

const int sum1 = foo!10() + foo!15() + foo!80();


The same using a static foreach:

int sum2;
foreach (x; TypeTuple!(10, 15, 80))
  sum2 += foo!x();


The small disadvantage is that now x can't be const.
In theory a smarter type system is able to see sum2 too is const.

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