• via Digitalmars-d-bugs (35/35) May 16 2014 https://issues.dlang.org/show_bug.cgi?id=12757

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

https://issues.dlang.org/show_bug.cgi?id=12757

          Issue ID: 12757
           Summary: Refused fixed size array literal function argument
           Product: D
           Version: D2
          Hardware: x86
                OS: Windows
            Status: NEW
          Keywords: rejects-valid
          Severity: normal
          Priority: P1
         Component: DMD
          Assignee: nobody puremagic.com
          Reporter: bearophile_hugs eml.cc

void foo(int[2] data) {}
void main() {
    int[2] aux = [0: 10, 1: 20]; // OK
    foo(aux);                    // OK
    foo([0: 10, 1: 20]);         // Error.
}


dmd 2.066alpha gives:

temp.d(5,8): Error: function temp2.foo (int[2] data) is not callable using
argument types (int[int])


A very similar but more specific and more useful example:


import std.traits: EnumMembers;
enum Foo : ubyte { A, B }
void bar(int[EnumMembers!Foo.length] input) {}
void main() {
    immutable int[EnumMembers!Foo.length] input = [Foo.A: 10, Foo.B: 20];
    bar(input); // OK.
    bar([Foo.A: 10, Foo.B: 20]); // Error.
}


See also:
https://issues.dlang.org/show_bug.cgi?id=4703

--