C++ - problem with string_view with some functions

[polidobj]

I'm getting errors with some functions when passing them a string_view. I think the issue is the same as this one:
https://www.devgem.io/posts/handling-std-string-view-with-std-fstream-in-c-why-doesn-t-it-work

The places that I've seen this so far are with unordered_map's add, erase and clear. And also with the std::runtime_error.

Here's a testcase:

public class A
{
  Dictionary<string, int>() dict;
  
  public void Add(string key, int value) throws Exception
  {
    if(dict.ContainsKey(key))
      throw Exception(key);
    dict[key] = value;
  }

}

[pfusik]

I have fixed passing a string reference to Exception.

Dictionary mutators do work. The problem is that you attempt to modify a field from a non-mutating method. Your code should be:

public void Add!(string key, int value) throws Exception

This is a common error, which should be reported by fut rather than the C++ compiler -- I will work on it.

[polidobj]

Thanks. I thought I saw some inconsistency with the enforcing mutating methods. But I had not figured it out enough to file an issue.