On Tue, 15 Nov 2011 10:47:22 -0500, Johannes Totz <johan...@jo-t.de> wrote:
On 15/11/2011 15:43, Johannes Totz wrote:
On 14/11/2011 22:32, Timon Gehr wrote:
On 11/14/2011 11:25 PM, Johannes Totz wrote:
Hi!
I'm having trouble with named typed enums.
This works (unnamed):
enum : string
{
a = "a",
b = "b"
}
int main(string[] argv)
{
writeln(a);
return 0;
}
But this does not:
enum X : string
{
a = "a", // Error: Integer constan
t expression expected
// instead of "a"
b = "b" // Error: Integer constant expression expected
// instead of "b"
}
int main(string[] argv)
{
writeln(X.a);
return 0;
}
What did I miss?
I don't know. It works for me.
import std.stdio;
enum X : string{
a = "a",
b = "b",
}
int main(string[] argv) {
writeln(X.a);
return 0;
}
compiles, runs and prints "a" as expected.
Are you using the latest version of the compiler? (DMD v2.056)
I had 2.055 and just upgraded.
But this seems to be some issue with VisualD. Compiling on the command
line (with 2.056) works fine as expected.
Ah, when I compile on the command line with:
dmd -g -debug main.d
main.d(6): Error: enum main.X base type must be of integral type, not
char[]
main.d(8): Error: cannot implicitly convert expression ("a") of type
char[1u] to int
main.d(9): Error: cannot implicitly convert expression ("b") of type
char[1u] to int
dmd must map to a D1 version, where string literals were char[N], not
immutable(char)[]. In D1, you could not have enums that were strings.
-Steve
