• via Digitalmars-d-bugs (28/28) May 29 2014 https://issues.dlang.org/show_bug.cgi?id=12819

via Digitalmars-d-bugs <digitalmars-d-bugs puremagic.com> writes:

https://issues.dlang.org/show_bug.cgi?id=12819

          Issue ID: 12819
           Summary: Refused purity conversion of immutable array of arrays
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Keywords: rejects-valid
          Severity: enhancement
          Priority: P1
         Component: DMD
          Assignee: nobody puremagic.com
          Reporter: bearophile_hugs eml.cc

I am not sure, but perhaps both functions should compile:


immutable(string)[] foo() pure {
    char[][] a;
    return a; // OK
}
string[] bar() pure {
    char[][] b;
    return b; // Error
}
void main() {}


DMD 2.066alpha gives:

test.d(7,12): Error: cannot implicitly convert expression (b) of type char[][]
to string[]

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