Macro konst::string::str_concat
source · macro_rules! str_concat { ($(&)? []) => { ... }; ($slice:expr $(,)*) => { ... }; }
Expand description
Macro equivalent of <[&str]>::concat
, which takes a constant as an argument.
This acts like a compile-time-evaluated version of this function:
pub const fn str_concat(strings: &'static [impl StrOrChar]) -> &'static str
Where impl StrOrChar
is either a &'static str
or char
§Example
use konst::string::str_concat;
{
const S: &[&str] = &["these ", "are ", "words"];
assert_eq!(str_concat!(S), "these are words");
assert_eq!(str_concat!(&[]), "");
assert_eq!(str_concat!(&["foo", "bar", "baz"]), "foobarbaz");
}
{
const C: &[char] = &['c', 'h', 'a', 'r', 's'];
assert_eq!(str_concat!(C), "chars");
assert_eq!(str_concat!(&['q'; 10]), "qqqqqqqqqq");
}