How to create a stringmap

Question

When I try to compile an Opa program with

m: stringmap(list(string)) = StringMap.empty()

I get this error:

Function was found of type ordered_map(string, 'a, String.order) but application expects it to be of type  -> 'b.

I'd appreciate any hint/help to figure out what's wrong with my code. TIA,

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Bahman

Cédrics · Accepted Answer · 2011-10-19T07:52:10.070

1

You probably want to write this:

m: stringmap(list(string)) = StringMap.empty

-> 'b refers to StringMap.empty() in the type error you quoted, which is incompatible with your coercion.

edited Oct 19 '11 at 07:52

answered Oct 19 '11 at 07:45

Cédrics

Thanks. So if I understand it right, `StringMap.empty` is a predefined empty `stringmap` and when I say `m = StringMap.empty` it is just cloned and assigned to `m`? – BahmanM Oct 19 '11 at 12:02

1 Answers1