[OT] - C++ exceptions are becoming more and more problematic

[bauss]

On Friday, 25 February 2022 at 00:30:49 UTC, H. S. Teoh wrote:
>
> Go, Zig, Rust, and Odin all require explicit checking for error 
> returns. This makes them suffer from exactly the same problem 
> as my C example
>


This is not entirely true, at least for Rust.

Ex.

```
fn foo(i: i32) -> Result<i32, Error> {
     if i % 2 == 0 {
         Ok(i)
     } else {
         Err(/* ... */)
     }
}

fn bar(i: i32) -> Result<i32, Error> {
     let i = match foo(i) {
         Ok(i) => i,
         Err(e) => return Err(e),
     };

     // do something with i
}
```

The function bar can be reduced to:

```
fn bar(i: i32) -> Result<i32, Error> {
     let i = foo(i)?; // The magic happens here

     // do something with i
}
```