While the concat! macro in std is useful to create a static string slice (&'static str) from literals, it cannot set a separator for those. This crate therefore provides another concat! macro to deal with that situation.
```rust
asserteq!("test10btrue", concat!("test", 10, 'b', true)); asserteq!("test, 10, b, true", concat!(with ", ", "test", 10, 'b', true)); asserteq!("test\n10\nb\ntrue", concatline!("test", 10, 'b', true)); ```
Prefixes and suffixes can also be added.
```rust
asserteq!("Someone says: Hello.\nSomeone says: Nice to meet you!", concatline!(prefix "Someone says: ", "Hello.", "Nice to meet you!")); ```
https://crates.io/crates/concat-with
https://docs.rs/concat-with