How do I use domain.find() as a test in Chapel

Question

I have a domain of strings and I want to test for an elements. The find seems to be what I want, but it's giving me an error.

var names: domain(string);
names += "bob";
if !names.find("bob") {
  writeln("Where is Bob?")
}

produces an error

error: illegal access of iterator or promoted expression

ben-albrecht · Accepted Answer · 2018-02-13T18:06:13.637

3

To check for membership within a domain, you want to use domain.member():

if !names.member("bob") {
  writeln("Where is Bob?")
}

As for your original example, there is no domain.find(), so your original example is actually getting promoted to string.find() on each element of the domain. #8450 describes this in more detail.

edited Feb 13 '18 at 18:06

answered Feb 12 '18 at 22:31

ben-albrecht

1,785
10
23

How does `names.member("bob")` react to an empty `names` domain? – Brian Dolan Feb 13 '18 at 00:43
1

it returns false – mppf Feb 13 '18 at 13:43

How do I use domain.find() as a test in Chapel

1 Answers1