• d-bugmail puremagic.com (33/33) Jun 08 2013 http://d.puremagic.com/issues/show_bug.cgi?id=10307

d-bugmail puremagic.com writes:

http://d.puremagic.com/issues/show_bug.cgi?id=10307

           Summary: Bad error message for not supported array operation
           Product: D
           Version: D2
          Platform: x86
        OS/Version: Windows
            Status: NEW
          Keywords: diagnostic
          Severity: minor
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: bearophile_hugs eml.cc



Currently this array operation is not a supported because there is no explicit
allocation of the modified array:


import std.math;
double sum(double[] data) {
    double result = 0.0;
    foreach (d; data)
        result += d;
    return result;
}
void main() {
    double[2] a = [2.0, 3.0];
    assert(sum(a[] ^^ 2) == 13.0);
}


dmd 2.064alpha gives this error message:

test.d(10): Error: Array operation a[] ^^ 2L not implemented


I suggest to improve the error message.

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