• d-bugmail puremagic.com (34/34) Mar 25 2012 http://d.puremagic.com/issues/show_bug.cgi?id=7775

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=7775

           Summary: std.range.chunks on const array of strings too
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Keywords: rejects-valid
          Severity: enhancement
          Priority: P2
         Component: Phobos
        AssignedTo: nobody puremagic.com
        ReportedBy: bearophile_hugs eml.cc



import std.range: chunks;
import std.array: join;
void main() {
    const data = ["a1", "b2", "c3", "d4", "e5"];
    foreach (c; chunks(data, 2))
        string r = join(c);
}


DMD 2.059head gives:

test.d(6): Error: template std.array.join(RoR,R) if (isInputRange!(RoR) &&
isInputRange!(ElementType!(RoR)) && isForwardRange!(R) &&
is(Unqual!(ElementType!(ElementType!(RoR))) == Unqual!(ElementType!(R)))) does
not match any function template declaration
test.d(6): Error: template std.array.join(RoR,R) if (isInputRange!(RoR) &&
isInputRange!(ElementType!(RoR)) && isForwardRange!(R) &&
is(Unqual!(ElementType!(ElementType!(RoR))) == Unqual!(ElementType!(R))))
cannot deduce template function from argument types
!()(const(immutable(char)[])[])

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